CN113569555B - Method and system for deducting change of power grid topological structure along with time sequence - Google Patents

Method and system for deducting change of power grid topological structure along with time sequence Download PDF

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CN113569555B
CN113569555B CN202110850902.4A CN202110850902A CN113569555B CN 113569555 B CN113569555 B CN 113569555B CN 202110850902 A CN202110850902 A CN 202110850902A CN 113569555 B CN113569555 B CN 113569555B
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power supply
load
bus
supply point
name
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CN113569555A (en
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黄斐
李伟
杨勇
吴海江
唐鹤
花洁
陈辉
欧明秀
易颜波
高博
陈凯阳
钟童科
陈华林
胡福金
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Guangdong Power Grid Co Ltd
Foshan Power Supply Bureau of Guangdong Power Grid Corp
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Guangdong Power Grid Co Ltd
Foshan Power Supply Bureau of Guangdong Power Grid Corp
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Abstract

The application discloses a method and a system for deducting the change of a power grid topological structure along with time sequence, wherein the method comprises the following steps: acquiring mode list information and power grid real-time topological structure information; screening a mode list with a to-be-started state in mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; based on the real-time topological structure information of the power grid, the method comprises the following steps: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence. The maintenance plan is rapidly and automatically analyzed through the computer, so that the rule method for the change of the power grid topological structure with time sequence is efficiently, rapidly and accurately obtained, and the technical problems that a great deal of labor cost is required to be consumed and real-time, accurate and efficient requirements are difficult to meet in the prior art are solved.

Description

Method and system for deducting change of power grid topological structure along with time sequence
Technical Field
The application relates to the technical field of electric power, in particular to a method and a system for deducting the change of a power grid topological structure along with time sequence.
Background
The real-time risk of equipment load and the power grid is very close to the topological structure of the power grid. When the intelligent technology is applied to develop the load prediction of the power grid equipment and the real-time running risk change situation prediction of the power grid, the situation that the topological structure of the power grid changes along with time needs to be accurately mastered. The most core element causing the topology change is maintenance schedule, which refers to the arrangement of power outage maintenance of power grid equipment, including the name of power outage equipment, power outage and power transmission time, and other power grid operation modes matched and adjusted, except for unpredictable accident situations. At present, a method for carrying out load prediction and risk analysis generally needs to manually read the characters of an overhaul list and then gradually deduce and calculate according to a real-time operation mode, and the method needs to consume a great deal of labor cost and is difficult to meet the requirements of real-time, accuracy and high efficiency.
Disclosure of Invention
The application provides a method and a system for deducting the change of a power grid topological structure along with time sequence, which are used for solving the technical problems that the prior art is difficult to consume a great deal of labor cost and is difficult to meet the requirements of real time, accuracy and high efficiency.
In view of this, a first aspect of the application provides a method of deducting a change in a power grid topology over time, the method comprising:
s1, acquiring mode list information and power grid real-time topological structure information;
S2, screening out a mode list with a to-be-started state in the mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets;
S3, based on the real-time topological structure information of the power grid, the method comprises the following steps of: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing the sentences belonging to the main transformer bus-bar sentence pattern to obtain load adjustment information of each sentence.
Optionally, after step S3, the method further includes:
Acquiring equipment short-term load prediction data;
And adjusting the short-term load prediction data of the equipment according to the load adjustment information to obtain the adjusted short-term load prediction data of the equipment.
Optionally, when the sentence contains a keyword as the column-shifting, step S3 specifically includes:
Extracting a transformer substation name through the statement or a mode list corresponding to the statement, and extracting a power supply line name and a 110kV bus name through the statement;
According to the name of the 110kV bus and the real-time topological structure information of the power grid, acquiring a 110kV main transformer mounted on the 110kV bus, and setting the 110kV main transformer as a main transformer needing to adjust a power supply point;
Acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment;
Recording the load of the main transformer of which the power supply point needs to be adjusted subtracted from the 220kV power supply point before adjustment as the load adjustment information;
According to 110kV lines formed by the 110kV buses and the 110kV main transformer and the real-time topological structure information of the power grid, 220kV power supply points of the 110kV lines are obtained, and the 220kV power supply points are set as adjusted 220kV power supply points;
And adding the main transformer of the power supply point to be adjusted and the load of the adjusted 220kV power supply point, and recording the added load as the load adjustment information.
Optionally, when the statement includes a keyword that is the rotation parallel, step S3 specifically includes:
extracting the name of the transformer substation through the statement or a mode list corresponding to the statement;
when the transformer substation belongs to a 220kV transformer substation, acquiring 110kV main transformer mounted on the transformer substation according to the real-time topological structure information of the transformer substation and the power grid;
Recording the load of the 110kV main transformer subtracted from the transformer substation as the load adjustment information, and recording half of the sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information;
When the transformer substation name does not belong to a 220kV transformer substation name, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
and recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information.
Optionally, when the statement includes a keyword that is a combination of the substation name+the line name, step S3 specifically includes:
Extracting the name of a transformer substation singly through the statement or a mode corresponding to the statement, acquiring a 220kV power supply point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
and recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information.
Optionally, when the sentence includes a combination of a keyword of 10kV busbar name+turn+busbar switch or main transformer name, step S3 specifically includes:
Extracting the name of the transformer substation singly through the statement or a mode corresponding to the statement, and acquiring a 10kV bus to be adjusted by the statement;
Based on the real-time topological structure information of the power grid, acquiring a main power supply point of the 10kV bus, and subtracting the load of the 10kV bus from the main power supply point to record as the load adjustment information;
When the transformer substation is a 110kV transformer substation, acquiring a 220kV power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load of the 10kV bus subtracted from the 220kV power supply point as the load adjustment information;
When the statement supplies power for the transfer switch and supplies power for the transfer bus-tie switch, acquiring the bus-tie switch, acquiring a main transformer of the host station at the other side of the bus-tie switch based on the real-time topological structure information of the power grid, and setting the main transformer of the host station as a main power supply point of the host station after adjustment;
when the statement supplies power for the transfer switch but not for the transfer bus-tie switch, acquiring a main power supply point of the adjusted station by taking the keyword as a main transformer;
recording the sum of the main power supply point of the adjusted station and the 10kV bus as the load adjustment information;
based on the real-time topological structure information of the power grid, acquiring 220kV power points of the main power supply points of the whole power station, and recording the 220kV power points as the load adjustment information after increasing the line load.
Optionally, when the sentence belongs to a main transformer supply busbar sentence pattern, step S3 specifically includes:
Extracting the names of the substations singly through the sentences or the modes corresponding to the sentences, setting the main transformer containing the main transformer keywords in the sentences as the adjusted main transformer points of the substation, and extracting all 10kV buses to be adjusted in the sentences;
Acquiring a main power supply point of a local station currently traversing the 10kV bus based on the real-time topological structure information of the power grid, subtracting the load of the 10kV bus from the main power supply point of the local station, and adding the load record of the 10kV bus to the main power supply point of the local station to obtain the load adjustment information;
When the transformer substation is a 110kV transformer substation, based on the real-time topological structure information of the power grid, acquiring a 220kV power point of a current traversing bus, subtracting the load of the 10kV bus from the 220kV power point, and recording the load of the 10kV bus increased by the 220kV power point as the load adjustment information.
Optionally, the adjusting the short-term load prediction data of the device according to the load adjustment information to obtain adjusted short-term load prediction data of the device specifically includes:
Acquiring all adjustment information with adjustment time longer than the current time in the load adjustment information;
when the adjustment start time of the adjustment information is greater than the current time, if the adjustment type of the adjustment information is increased, carrying out load increasing operation, otherwise, carrying out load reducing operation;
and when the adjustment starting time of the adjustment information is not more than the current time, if the adjustment type of the adjustment information is increased, carrying out load increase reduction operation, otherwise, carrying out load decrease reduction operation.
A second aspect of the application provides a system for deducting the change of a power grid topology over time, the system comprising:
the first acquisition module is used for acquiring the mode list information and the real-time topological structure information of the power grid;
The extraction module is used for screening out a mode list with a to-be-started state in the mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets;
the analysis module is used for carrying out the following steps of: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing the sentences belonging to the main transformer bus-bar sentence pattern to obtain load adjustment information of each sentence.
Optionally, the method further comprises:
the second acquisition module is used for acquiring the equipment short-term load prediction data;
and the adjusting module is used for adjusting the equipment short-term load prediction data according to the load adjustment information to obtain the adjusted equipment short-term load prediction data.
From the above technical scheme, the application has the following advantages:
The application provides a method for deducting the change of a power grid topological structure with time sequence, which comprises the following steps of S1, obtaining mode list information and power grid real-time topological structure information; s2, screening out a mode list with the mode list information in a to-be-started state, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; s3, based on the real-time topological structure information of the power grid, the method comprises the following steps of: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence. The application utilizes the computer system to rapidly and automatically analyze the maintenance plan, thereby efficiently, rapidly and accurately obtaining the rule method for the change of the power grid topological structure with time sequence, and solving the technical problems that the prior art needs to consume a great deal of labor cost and is difficult to meet the requirements of real time, accuracy and high efficiency.
Drawings
FIG. 1 is a schematic flow chart of a method for deducting the change of the topology of a power grid with time according to an embodiment of the present application;
Fig. 2 is a schematic flow chart of a second embodiment of a method for deducting time-series change of a topology of a power grid according to the present application;
Fig. 3 is a schematic structural diagram of an embodiment of a system for deducting time-series change of a topology of a power grid according to an embodiment of the present application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 1 is a flowchart illustrating an embodiment of a method for deducting a change of a topology of a power grid over time according to an embodiment of the present application.
The first embodiment of the application provides a method for deducting the change of a power grid topological structure with time sequence, which comprises the following steps:
and 101, acquiring mode list information and power grid real-time topological structure information.
In this embodiment, the mode list information is obtained from the guangdong power grid operation management system (dicop system) and stored in the mode list information table of the local database. And acquiring real-time topology structure information of the power grid from a dispatching intelligent auxiliary decision cockpit (GADAS system) and storing the topology structure information into a topology information table of a local database.
Step 102, screening out a mode list with the mode list information in a to-be-started state, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets.
It can be understood that, in this embodiment, all the mode sheets whose states are in the to-be-started state are first selected; then, taking out the power failure notice of the current mode list, taking a line changing character as a dividing condition, dividing the power failure notice of the mode list into a plurality of statement sets, and waiting for subsequent analysis; the sentences with the keywords 'verify', 'confirm' are then filtered.
Step 103, based on the real-time topological structure information of the power grid, the method comprises the following steps: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence.
For step 103, in one specific embodiment, when the statement contains keywords that are in the turn-by-turn columns:
And extracting the transformer substation name singly through a statement or a mode corresponding to the statement, and extracting the power supply line name and the 110kV bus name through the statement.
It should be noted that, by judging whether the current sentence contains a keyword 'station' and the name belongs to the transformer substation name, if so, extracting the transformer substation name; otherwise, the position of the keyword 'station' is found from the change reason information of the current mode list, and the first two words of the position are intercepted simultaneously to obtain the name of the transformer substation. And extracting the power supply line name from the text from the keyword 'to the bus' from the current sentence, and extracting the 110kV bus name from the text from the keyword 'to the bus'.
And acquiring 110kV main transformer mounted on the 110kV bus according to the name of the 110kV bus and the real-time topological structure information of the power grid, and setting the 110kV main transformer as the main transformer needing to adjust the power supply point.
And acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment.
And recording the load of the main transformer which is subtracted from the 220kV power supply point before adjustment and needs to be adjusted as load adjustment information.
According to the 110kV line formed by the 110kV bus and the 110kV main transformer and the real-time topological structure information of the power grid, a 220kV power supply point of the 110kV line is obtained, and the 220kV power supply point is set as an adjusted 220kV power supply point.
And adding the main transformer needing to be adjusted of the power supply point and the adjusted load of the 220kV power supply point, and recording the added load as load adjustment information.
For step 103, in a specific embodiment, when the statement contains keywords that are turn-parallel:
And extracting the name of the transformer substation through the statement or the mode list corresponding to the statement.
It should be noted that, similarly to the previous embodiment, this embodiment determines whether the current sentence contains the keyword 'station' and the name belongs to the substation name. If the keyword belongs to the transformer substation name, the position of the keyword 'station' is found from the current sentence, and the first two words of the position are intercepted simultaneously to obtain the transformer substation name; otherwise, the position of the keyword 'station' is found from the change reason information of the current mode list, and the first two words of the position are intercepted simultaneously to obtain the name of the transformer substation.
When the transformer substation belongs to a 220kV transformer substation, acquiring 110kV main transformer mounted on the transformer substation according to real-time topological structure information of the transformer substation and a power grid.
It can be understood that whether the transformer substation belongs to the 220kV transformer substation is obtained through the steps, and if the transformer substation belongs to the 220kV transformer substation, the 110kV main transformer mounted on the transformer substation is obtained according to real-time topological structure information analysis of the transformer substation and the power grid.
The load of the transformer substation minus the 110kV main transformer is recorded as load adjustment information, and half of the sum of the load of the 110kV main transformer and the load of the transformer substation is recorded as load adjustment information.
When the transformer substation name does not belong to the 220kV transformer substation name, according to the real-time topological structure information of the transformer substation and the power grid, acquiring a 220kV power supply point corresponding to the transformer substation, and setting the 220kV power supply point as an original 220kV power supply point.
And recording the load of the original 220kV power supply point minus the load of the transformer substation as load adjustment information.
And obtaining 110kV lines according to the statement formats, setting the 110kV lines as adjusted power supply lines, acquiring 220kV power points of the power supply lines according to the real-time topological structure information of the power supply lines and the power grid, and setting the 220kV power points as adjusted 220kV power points.
And recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as load adjustment information.
For step 103, in a specific embodiment, when the statement contains a combination of keywords substation name + to + line name:
it should be noted that, judging whether the sentence has a keyword 'to' and the keyword 'to' is followed by a transformer station name and a line name immediately followed by the keyword 'to', if so, the sentence contains a combination of a keyword of 10kV busbar name + to + busbar switch or main transformer name.
The method comprises the steps of extracting the name of a transformer substation singly through a statement or a mode corresponding to the statement, acquiring a 220kV power supply point of the transformer substation according to the name of the transformer substation and real-time topological structure information of a power grid, and setting the 220kV power supply point as an original 220kV power supply point;
The load of the transformer substation subtracted from the original 220kV power supply point is recorded as load adjustment information;
Obtaining 110kV lines according to the statement formats, setting the 110kV lines as adjusted power supply lines, acquiring 220kV power points of the power supply lines according to the power supply lines and the real-time topological structure information of the power grid, and setting the 220kV power points as adjusted 220kV power points;
and recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as load adjustment information.
For step 103, in a specific embodiment, when the sentence contains a combination of the keyword 10kV busbar name + to + busbar switch or main transformer name:
It should be noted that, whether the sentence has a keyword 'to' and the keyword 'to' is followed by a 10kV busbar name and a busbar switch (or main transformer) name immediately after the keyword 'to', if so, the sentence contains a combination of the keyword 10kV busbar name+to+busbar switch or main transformer name.
And extracting the name of the transformer substation singly through a statement or a mode corresponding to the statement, and acquiring the 10kV bus to be regulated by the statement.
It should be noted that, 10kV buses needing to be adjusted are obtained from the current sentence according to the analysis and extraction of keywords '#' and 'M', namely, 10kV buses to be adjusted of the sentence are obtained.
Based on the real-time topological structure information of the power grid, a main power supply point of the 10kV bus is obtained, and the load of the 10kV bus subtracted from the main power supply point is recorded as load adjustment information.
When the transformer substation is a 110kV transformer substation, based on the real-time topological structure information of the power grid, a 220kV power supply point of a 10kV bus is obtained, and the load of the 10kV bus subtracted from the 220kV power supply point is recorded as load adjustment information.
When the statement supplies power for the transfer switch and supplies power for the transfer bus-tie switch, the bus-tie switch is obtained, the main transformer of the host station on the other side of the bus-tie switch is obtained based on the real-time topological structure information of the power grid, and the main transformer of the host station is set as the main transformer power point of the host station after adjustment.
When the statement supplies power for the transfer switch but not for the transfer bus-tie switch, the main power supply point of the adjusted station is obtained by taking the key word as the main transformer.
And recording the sum of the main power supply point of the adjusted station and the 10kV bus as load adjustment information.
Based on the real-time topological structure information of the power grid, acquiring 220kV power points of the main power points of the power station after the whole power grid, and recording the 220kV power points as load adjustment information after increasing the line load.
For step 103, in a specific embodiment, when the sentence belongs to the main transformer supply busbar sentence pattern:
and extracting the names of the substations singly in a statement or a statement corresponding mode, setting the main transformer containing the main transformer keywords in the statement as the adjusted main transformer point of the substation, and extracting all 10kV buses to be adjusted in the statement.
It should be noted that, in this embodiment, all 10kV buses to be adjusted, that is, all 10kV buses to be adjusted, are obtained from the current sentence according to the analysis and extraction of the keywords ' #, ' M '.
Based on the real-time topological structure information of the power grid, the main power supply point of the current station traversing the 10kV bus is obtained, the load of the 10kV bus is subtracted from the main power supply point of the current station, and the load record of the 10kV bus added to the main power supply point of the current station is load adjustment information.
When the transformer substation is a 110kV transformer substation, based on the real-time topological structure information of the power grid, acquiring a 220kV power point of a current traversing bus, subtracting the load of a 10kV bus from the 220kV power point, and recording the load of the 10kV bus added to the 220kV power point as load adjustment information.
The application provides a method for deducting the change of a power grid topological structure with time sequence, which comprises the following steps of S1, obtaining mode list information and power grid real-time topological structure information; s2, screening out a mode list with the mode list information in a to-be-started state, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; s3, based on the real-time topological structure information of the power grid, the method comprises the following steps of: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence. The application utilizes the computer system to rapidly and automatically analyze the maintenance plan, thereby efficiently, rapidly and accurately obtaining the rule method for the change of the power grid topological structure with time sequence, and solving the technical problems that the prior art needs to consume a great deal of labor cost and is difficult to meet the requirements of real time, accuracy and high efficiency.
The above is an embodiment one of a method for deducting the change of the topology structure of the power grid with time provided in the embodiment of the present application, and the following is an embodiment one of a method for deducting the change of the topology structure of the power grid with time provided in the embodiment of the present application.
Referring to fig. 2, fig. 2 is a flowchart illustrating a second embodiment of a method for deducting a change of a topology of a power grid over time according to an embodiment of the present application.
The second embodiment of the application provides a method for deducting the change of a power grid topological structure with time sequence, which comprises the following steps:
step 201, obtaining mode list information and power grid real-time topological structure information.
Step 202, screening out a mode list with a to-be-started mode in mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets.
Step 203, based on the real-time topology structure information of the power grid, the method comprises the following steps: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence.
It should be noted that steps 201-203 are the same as steps 101-103 in the embodiment, please refer to steps 101-103, and are not described herein.
And 204, acquiring equipment short-term load prediction data.
And step 205, adjusting the short-term load prediction data of the equipment according to the load adjustment information to obtain the adjusted short-term load prediction data of the equipment.
For step 205, in one specific embodiment, it is specifically:
and acquiring all adjustment information with adjustment time longer than the current time in the load adjustment information.
When the adjustment start time of the adjustment information is greater than the current time, if the adjustment type of the adjustment information is increased, carrying out load increasing operation, otherwise, carrying out load reducing operation.
The load increasing operation is specifically: according to the currently traversed adjustment information, load prediction data of the adjusted device in the adjustment time period is increased by the load of the corresponding time point of the adjustment device. The load reduction operation is specifically: according to the currently traversed adjustment information, load prediction data of the adjusted device in the adjustment time period is reduced by the load of the corresponding time point of the adjustment device.
And when the adjustment start time of the adjustment information is not more than the current time, if the adjustment type of the adjustment information is increased, carrying out load increase reduction operation, otherwise, carrying out load decrease reduction operation.
It should be noted that the adding and reducing operation specifically includes: according to the current traversed adjustment information, load prediction data of the adjusted equipment after the adjustment ending time is reduced by the load of the corresponding time point of the adjustment equipment. The reduction operation is specifically: according to the current traversed adjustment information, load prediction data of the adjusted equipment after the adjustment ending time is increased by the load of the corresponding time point of the adjustment equipment.
The above is a second embodiment of a method for deducting the time-series change of the topology of the power grid provided in the embodiment of the present application, and the following is an embodiment of a system for deducting the time-series change of the topology of the power grid provided in the embodiment of the present application.
Referring to the drawings, fig. 3 is a block diagram of an embodiment of a system for deducting time-series change of a topology of a power grid according to an embodiment of the present application.
The second embodiment of the present application provides a system for deducting time-series change of a power grid topology structure, which includes:
The first obtaining module 301 is configured to obtain the mode list information and the real-time topology information of the power grid;
the extracting module 302 is configured to screen a mode list with a to-be-started state in the mode list information, divide power failure notice of the mode list into a plurality of statement sets, and extract statements with preset keywords in the statement sets;
The analysis module 303 is configured to, for the keyword: the method comprises the steps of converting into columns, converting into parallel, converting into a combination of a transformer substation name and a line name, converting into a combination of a 10kV bus name and a bus-bar switch or a main transformer name, and respectively analyzing sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence.
Further, the embodiment of the application further comprises:
a second acquisition module 304 is configured to acquire device short-term load prediction data.
And the adjusting module 305 is configured to adjust the short-term load prediction data of the device according to the load adjustment information, so as to obtain adjusted short-term load prediction data of the device.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described system and module may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (5)

1. A method of deducting the change in time sequence of a power grid topology, comprising:
s1, acquiring mode list information and power grid real-time topological structure information;
S2, screening out a mode list with a to-be-started state in the mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets;
S3, based on the real-time topological structure information of the power grid, the method comprises the following steps of: the method comprises the steps of converting into columns, converting into parallel, combining a transformer substation name with a line name, combining a 10kV bus name with a bus-to-bus switch or a main transformer name, and respectively analyzing the sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence;
when the statement contains the keyword as the column-shifting, step S3 specifically includes:
Extracting a transformer substation name through the statement or a mode list corresponding to the statement, and extracting a power supply line name and a 110kV bus name through the statement;
According to the name of the 110kV bus and the real-time topological structure information of the power grid, acquiring a 110kV main transformer mounted on the 110kV bus, and setting the 110kV main transformer as a main transformer needing to adjust a power supply point;
Acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment;
Recording the load of the main transformer of which the power supply point needs to be adjusted subtracted from the 220kV power supply point before adjustment as the load adjustment information;
According to 110kV lines formed by the 110kV buses and the 110kV main transformer and the real-time topological structure information of the power grid, 220kV power supply points of the 110kV lines are obtained, and the 220kV power supply points are set as adjusted 220kV power supply points;
adding the main transformer of the power supply point to be adjusted and the load of the adjusted 220kV power supply point, and recording the added load as the load adjustment information;
When the statement contains keywords as the turn parallel, step S3 specifically includes:
extracting the name of the transformer substation through the statement or a mode list corresponding to the statement;
when the transformer substation belongs to a 220kV transformer substation, acquiring 110kV main transformer mounted on the transformer substation according to the real-time topological structure information of the transformer substation and the power grid;
Recording the load of the 110kV main transformer subtracted from the transformer substation as the load adjustment information, and recording half of the sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information;
When the transformer substation name does not belong to a 220kV transformer substation name, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information;
When the statement contains a combination of the transformer substation name + the line name, the step S3 specifically includes:
Extracting the name of a transformer substation singly through the statement or a mode corresponding to the statement, acquiring a 220kV power supply point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information;
when the statement contains a combination of a keyword of 10kV busbar name + conversion + busbar switch or main transformer name, the step S3 specifically comprises the following steps:
Extracting the name of the transformer substation singly through the statement or a mode corresponding to the statement, and acquiring a 10kV bus to be adjusted by the statement;
Based on the real-time topological structure information of the power grid, acquiring a main power supply point of the 10kV bus, and subtracting the load of the 10kV bus from the main power supply point to record as the load adjustment information;
When the transformer substation is a 110kV transformer substation, acquiring a 220kV power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load of the 10kV bus subtracted from the 220kV power supply point as the load adjustment information;
When the statement supplies power for the transfer switch and supplies power for the transfer bus-tie switch, acquiring the bus-tie switch, acquiring a main transformer of the host station at the other side of the bus-tie switch based on the real-time topological structure information of the power grid, and setting the main transformer of the host station as a main power supply point of the host station after adjustment;
when the statement supplies power for the transfer switch but not for the transfer bus-tie switch, acquiring a main power supply point of the adjusted station by taking the keyword as a main transformer;
recording the sum of the main power supply point of the adjusted station and the 10kV bus as the load adjustment information;
Based on the real-time topological structure information of the power grid, acquiring 220kV power points of the main power supply points of the whole power station, and recording the 220kV power points as the load adjustment information after increasing the line load;
when the sentence belongs to a main transformer supply bus sentence pattern, the step S3 specifically includes:
Extracting the names of the substations singly through the sentences or the modes corresponding to the sentences, setting the main transformer containing the main transformer keywords in the sentences as the adjusted main transformer points of the substation, and extracting all 10kV buses to be adjusted in the sentences;
Acquiring a main power supply point of a local station currently traversing the 10kV bus based on the real-time topological structure information of the power grid, subtracting the load of the 10kV bus from the main power supply point of the local station, and adding the load record of the 10kV bus to the main power supply point of the local station to obtain the load adjustment information;
When the transformer substation is a 110kV transformer substation, based on the real-time topological structure information of the power grid, acquiring a 220kV power point of a current traversing bus, subtracting the load of the 10kV bus from the 220kV power point, and recording the load of the 10kV bus increased by the 220kV power point as the load adjustment information.
2. The method of deducing the change in the topology of a power grid over time according to claim 1, characterized in that after step S3 it further comprises:
Acquiring equipment short-term load prediction data;
And adjusting the short-term load prediction data of the equipment according to the load adjustment information to obtain the adjusted short-term load prediction data of the equipment.
3. The method for deducting the change of the topological structure of the power grid with time according to claim 2, wherein the adjusting the device short-term load prediction data according to the load adjustment information to obtain the adjusted device short-term load prediction data specifically comprises:
Acquiring all adjustment information with adjustment time longer than the current time in the load adjustment information;
when the adjustment start time of the adjustment information is greater than the current time, if the adjustment type of the adjustment information is increased, carrying out load increasing operation, otherwise, carrying out load reducing operation;
and when the adjustment starting time of the adjustment information is not more than the current time, if the adjustment type of the adjustment information is increased, carrying out load increase reduction operation, otherwise, carrying out load decrease reduction operation.
4. A system for deducting the change of a power grid topology over time, comprising:
the first acquisition module is used for acquiring the mode list information and the real-time topological structure information of the power grid;
The extraction module is used for screening out a mode list with a to-be-started state in the mode list information, dividing power failure notice matters of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets;
The analysis module is used for carrying out the following steps of: the method comprises the steps of converting into columns, converting into parallel, combining a transformer substation name with a line name, combining a 10kV bus name with a bus-to-bus switch or a main transformer name, and respectively analyzing the sentences belonging to a main transformer bus sentence pattern to obtain load adjustment information of each sentence;
when the statement contains keywords which are the column-shifting, the analysis module is specifically configured to:
Extracting a transformer substation name through the statement or a mode list corresponding to the statement, and extracting a power supply line name and a 110kV bus name through the statement;
According to the name of the 110kV bus and the real-time topological structure information of the power grid, acquiring a 110kV main transformer mounted on the 110kV bus, and setting the 110kV main transformer as a main transformer needing to adjust a power supply point;
Acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment;
Recording the load of the main transformer of which the power supply point needs to be adjusted subtracted from the 220kV power supply point before adjustment as the load adjustment information;
According to 110kV lines formed by the 110kV buses and the 110kV main transformer and the real-time topological structure information of the power grid, 220kV power supply points of the 110kV lines are obtained, and the 220kV power supply points are set as adjusted 220kV power supply points;
adding the main transformer of the power supply point to be adjusted and the load of the adjusted 220kV power supply point, and recording the added load as the load adjustment information;
when the statement contains keywords which are the transformation and juxtaposition, the analysis module is specifically used for:
extracting the name of the transformer substation through the statement or a mode list corresponding to the statement;
when the transformer substation belongs to a 220kV transformer substation, acquiring 110kV main transformer mounted on the transformer substation according to the real-time topological structure information of the transformer substation and the power grid;
Recording the load of the 110kV main transformer subtracted from the transformer substation as the load adjustment information, and recording half of the sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information;
When the transformer substation name does not belong to a 220kV transformer substation name, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information;
when the statement contains a combination of the transformer substation name + the circuit name, the analysis module is specifically configured to:
Extracting the name of a transformer substation singly through the statement or a mode corresponding to the statement, acquiring a 220kV power supply point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
subtracting the load record of the transformer substation from the original 220kV power supply point to obtain load adjustment information;
Obtaining a 110kV line according to the statement format, setting the 110kV line as an adjusted power supply line, acquiring a 220kV power supply point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
recording the sum of the load of the adjusted 220kV power supply point and the load of the transformer substation as the load adjustment information;
When the statement contains a combination of a keyword of 10kV busbar name + conversion + busbar switch or main transformer name, the analysis module is specifically used for:
Extracting the name of the transformer substation singly through the statement or a mode corresponding to the statement, and acquiring a 10kV bus to be adjusted by the statement;
Based on the real-time topological structure information of the power grid, acquiring a main power supply point of the 10kV bus, and subtracting the load of the 10kV bus from the main power supply point to record as the load adjustment information;
When the transformer substation is a 110kV transformer substation, acquiring a 220kV power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load of the 10kV bus subtracted from the 220kV power supply point as the load adjustment information;
When the statement supplies power for the transfer switch and supplies power for the transfer bus-tie switch, acquiring the bus-tie switch, acquiring a main transformer of the host station at the other side of the bus-tie switch based on the real-time topological structure information of the power grid, and setting the main transformer of the host station as a main power supply point of the host station after adjustment;
when the statement supplies power for the transfer switch but not for the transfer bus-tie switch, acquiring a main power supply point of the adjusted station by taking the keyword as a main transformer;
recording the sum of the main power supply point of the adjusted station and the 10kV bus as the load adjustment information;
Based on the real-time topological structure information of the power grid, acquiring 220kV power points of the main power supply points of the whole power station, and recording the 220kV power points as the load adjustment information after increasing the line load;
When the sentence belongs to a main transformer supply bus sentence pattern, the analysis module is specifically configured to:
Extracting the names of the substations singly through the sentences or the modes corresponding to the sentences, setting the main transformer containing the main transformer keywords in the sentences as the adjusted main transformer points of the substation, and extracting all 10kV buses to be adjusted in the sentences;
Acquiring a main power supply point of a local station currently traversing the 10kV bus based on the real-time topological structure information of the power grid, subtracting the load of the 10kV bus from the main power supply point of the local station, and adding the load record of the 10kV bus to the main power supply point of the local station to obtain the load adjustment information;
When the transformer substation is a 110kV transformer substation, based on the real-time topological structure information of the power grid, acquiring a 220kV power point of a current traversing bus, subtracting the load of the 10kV bus from the 220kV power point, and recording the load of the 10kV bus increased by the 220kV power point as the load adjustment information.
5. The system for deducting a change in a topology of a power grid over time of claim 4, further comprising:
the second acquisition module is used for acquiring the equipment short-term load prediction data;
and the adjusting module is used for adjusting the equipment short-term load prediction data according to the load adjustment information to obtain the adjusted equipment short-term load prediction data.
CN202110850902.4A 2021-07-27 2021-07-27 Method and system for deducting change of power grid topological structure along with time sequence Active CN113569555B (en)

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