CN106208089A - A kind of distribution network voltage reactive-load compensation evaluation methodology - Google Patents
A kind of distribution network voltage reactive-load compensation evaluation methodology Download PDFInfo
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- CN106208089A CN106208089A CN201610799171.4A CN201610799171A CN106208089A CN 106208089 A CN106208089 A CN 106208089A CN 201610799171 A CN201610799171 A CN 201610799171A CN 106208089 A CN106208089 A CN 106208089A
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- 238000011156 evaluation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000008901 benefit Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000013507 mapping Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a kind of distribution network voltage reactive-load compensation evaluation methodology.Described distribution network voltage reactive-load compensation evaluation methodology comprises the steps: a, configuration structure according to power distribution network, obtains the topological structure of the topological relation representing each node of power distribution network, each branch road and each reactive-load compensation equipment；B, according to described topological structure, set up described each node, described each branch road and the reactive-load compensation index system of each reactive-load compensation equipment, and established standards value in described reactive-load compensation index system；C, based on described topological structure, build the reactive-load compensation index measurement system of described each node, described each branch road and each reactive-load compensation equipment, and obtain in real time and the measured value of each index in described reactive-load compensation index system；D, difference between standard value and measured value of based on each described index set up overall objective appraisement system.
Description
Technical field
Relate to the present invention a kind of distribution network voltage reactive-load compensation evaluation methodology.
Background technology
The planning of reactive-load compensation in the past calculates and all uses empirical equation to calculate (20-40% of load capacity), owing to experience is public
Formula only provides a scope, therefore cannot determine concrete configuration capacity, more cannot determine concrete configuration place.And, along with rear
The change of phase grid structure, it is impossible to rest in the configuring condition of reactive-load compensation under existing framework condition in time, if disclosure satisfy that
Reactive management requirement.
At present transformer substation side reactive-load compensation equipment can grasp its ruuning situation in time, but distribution reactive-load compensation equipment by
In lacking management platform, major part only relies on the teams and groups personnel on site in one's power that powers and makes an inspection tour, and causes cannot understanding archives in time
Account and ruuning situation.
Therefore, it is necessary to provide a kind of based on the distribution network voltage reactive-load compensation evaluation that each reactive-load compensation equipment is monitored
Method.
Summary of the invention
It is an object of the invention to provide a kind of in the distribution network voltage reactive-load compensation that each reactive-load compensation equipment is monitored
Evaluation methodology.
Technical scheme is as follows: a kind of distribution network voltage reactive-load compensation evaluation methodology, comprises the steps:
A, configuration structure according to power distribution network, obtain and represent each node of power distribution network, each branch road and each reactive-load compensation equipment
The topological structure of topological relation；
B, according to described topological structure, set up described each node, described each branch road and the idle benefit of each reactive-load compensation equipment
Repay index system, and established standards value in described reactive-load compensation index system；
C, based on described topological structure, build described each node, described each branch road and the idle benefit of each reactive-load compensation equipment
Repay index measurement system, and obtain in real time and the measured value of each index in described reactive-load compensation index system；
D, difference between standard value and measured value of based on each described index set up overall objective appraisement system.
The embodiment of the present invention provide distribution network voltage reactive-load compensation evaluation methodology in, in step a, according to road-village-
The connected mode step by step of township-county-city-province builds the tree topology of described power distribution network.
In the distribution network voltage reactive-load compensation evaluation methodology that the embodiment of the present invention provides, in stepb, described idle benefit
The index repaying index system includes that Static State Index and operating index, described Static State Index include the compensation capacity of reactive-load compensation equipment
And cancellation ratio；Described operating index includes active power, reactive power and power factor.
In the distribution network voltage reactive-load compensation evaluation methodology that the embodiment of the present invention provides, in step c, open up based on described
Flutter structure, in described reactive-load compensation index measurement system, described each node, described each branch road and described reactive-load compensation equipment
Measured value the most wirelessly carries out information transmission.
The embodiment of the present invention provide distribution network voltage reactive-load compensation evaluation methodology in, in step d, described in refer generally to
Mark appraisement system is:
E=A1×ΔN1+A2×ΔN2+···+An×ΔNn,
Wherein, A1, A2 ..., An is weight coefficient Δ N1, Δ N2 ... Δ Nn is described indicators standard value and measurement
The absolute value of difference between value, wherein n more than or equal to 1 for positive integer.
The beneficial effects of the present invention is: described distribution network voltage reactive-load compensation evaluation methodology can be different according to power distribution network
The topological structure of rank is evaluated from the reactive-load compensation index system of reactive-load compensation equipment to branch road and node, and constructs
The overall objective evaluation of the difference between standard value and the measured value of based on each described index of the topological structure of different stage
System, therefore can be evaluated the reactive-load compensation effect of power distribution network accurately and rapidly.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the distribution network voltage reactive-load compensation evaluation methodology that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
The description of specific distinct unless the context otherwise, the element in the present invention and assembly, the shape that quantity both can be single
Formula exists, it is also possible to presented in multiple, this is not defined by the present invention.Although the step in the present invention is entered with label
Go arrangement, but be not used to limit the precedence of step, unless expressly stated the order of step or holding of certain step
Based on row needs other steps, otherwise the relative rank of step is adjustable in.It is appreciated that used herein
Term "and/or" relates to and contains one or more of any and all possible group in the Listed Items being associated
Close.
Refer to Fig. 1, be the FB(flow block) of the distribution network voltage reactive-load compensation evaluation methodology that the embodiment of the present invention provides.This
The distribution network voltage reactive-load compensation evaluation methodology 100 that inventive embodiments provides specifically includes following steps:
S1, configuration structure according to power distribution network, obtain and represent each node of power distribution network, each branch road and each reactive-load compensation equipment
The topological structure of topological relation.
Specifically, in step sl, described power distribution network is built according to the connected mode step by step of road-village-township-county-city-province
Tree topology.In the present embodiment, the topological structure of described power distribution network includes the topological structure of each node, the opening up of each branch road
Flutter structure and the topological structure of each reactive-load compensation equipment.
S2, according to described topological structure, set up described each node, described each branch road and the idle benefit of each reactive-load compensation equipment
Repay index system, and established standards value in described reactive-load compensation index system.
Specifically, in step s 2, the index of described reactive-load compensation index system includes Static State Index and operating index, institute
State Static State Index and include compensation capacity and the cancellation ratio of reactive-load compensation equipment；Described operating index includes active power, idle merit
Rate and power factor.
In step s 2, the topological structure of the described reactive-load compensation index system each node be applicable to step S1, each
The topological structure on road and the topological structure of each reactive-load compensation equipment.But, due to node, branch road and reactive-load compensation equipment three it
Between diversity, then three needs that described reactive-load compensation index system is multiplied by the correction factor of setting respectively and carries out suitable repairing
Just.
Such as, if as a example by the topological structure of each reactive-load compensation equipment, the reactive-load compensation of described reactive-load compensation equipment refers to
Mark system can determine according to the running parameter of each described reactive-load compensation equipment, sets the idle of described reactive-load compensation equipment
Compensation index system is T0.
Then, if the correction factor of the topological structure of described each node is B1, the reactive-load compensation index of the most described each node
System: T1=B1 × T0.
Then, if the correction factor of the topological structure of described each branch road is B1, the reactive-load compensation index of the most described each branch road
System: T2=B2 × T0.
S3, based on described topological structure, build described each node, described each branch road and the idle benefit of each reactive-load compensation equipment
Repay index measurement system, and obtain in real time and the measured value of each index in described reactive-load compensation index system.
Specifically, in step s3, based on described topological structure, in described reactive-load compensation index measurement system, described
The measured value of each node, described each branch road and described reactive-load compensation equipment the most wirelessly carries out information transmission.Namely be based on
Described topological structure, builds the cordless communication network of described reactive-load compensation index measurement system.
In addition, it is desirable to explanation is, in step s 2, described correction factor is according to node each described in step S3 and described
In the reactive-load compensation index system of the actual measurement of each branch road between measured value and the measured value of described reactive-load compensation equipment of index
Ratio determine.
S4, difference between standard value and measured value of based on each described index set up overall objective appraisement system.
Specifically, in step s 4, described overall objective appraisement system is:
E=A1×ΔN1+A2×ΔN2+···+An×ΔNn,
Wherein, A1, A2 ..., An is weight coefficient Δ N1, Δ N2 ... Δ Nn is described indicators standard value and measurement
The absolute value of difference between value, wherein n more than or equal to 1 for positive integer.
Therefore, in the topological structure of each reactive-load compensation equipment, then the overall objective of each reactive-load compensation equipment can be obtained
Appraisement system；In the topological structure of each branch road, then can obtain the overall objective appraisement system of each branch road；Opening up of each node
Flutter in structure, then can obtain the overall objective appraisement system of each node.
Compared to prior art, the distribution network voltage reactive-load compensation evaluation methodology 100 that the present invention provides can be according to distribution
The topological structure of net different stage is evaluated from the reactive-load compensation index system of reactive-load compensation equipment to branch road and node, and
Referring generally to of difference between standard value and the measured value of based on each described index of the topological structure constructing different stage
Mark appraisement system, therefore can be evaluated the reactive-load compensation effect of power distribution network accurately and rapidly.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (5)
1. a distribution network voltage reactive-load compensation evaluation methodology, it is characterised in that: comprise the steps:
A, configuration structure according to power distribution network, obtain and represent opening up of each node of power distribution network, each branch road and each reactive-load compensation equipment
Flutter the topological structure of relation；
B, according to described topological structure, the reactive-load compensation setting up described each node, described each branch road and each reactive-load compensation equipment refers to
Mark system, and established standards value in described reactive-load compensation index system；
C, based on described topological structure, the reactive-load compensation building described each node, described each branch road and each reactive-load compensation equipment refers to
Mapping amount system, and obtain in real time and the measured value of each index in described reactive-load compensation index system；
D, difference between standard value and measured value of based on each described index set up overall objective appraisement system.
Distribution network voltage reactive-load compensation evaluation methodology the most according to claim 1, it is characterised in that: in step a, according to
The connected mode step by step of road-village-township-county-city-province builds the tree topology of described power distribution network.
Distribution network voltage reactive-load compensation evaluation methodology the most according to claim 1, it is characterised in that: in stepb, described
The index of reactive-load compensation index system includes that Static State Index and operating index, described Static State Index include the benefit of reactive-load compensation equipment
Repay capacity and cancellation ratio；Described operating index includes active power, reactive power and power factor.
Distribution network voltage reactive-load compensation evaluation methodology the most according to claim 1, it is characterised in that: in step c, based on
Described topological structure, in described reactive-load compensation index measurement system, described each node, described each branch road and described reactive-load compensation
The measured value of equipment the most wirelessly carries out information transmission.
Distribution network voltage reactive-load compensation evaluation methodology the most according to claim 1, it is characterised in that: in step d, described
Overall objective appraisement system is:
E=A1×ΔN1+A2×ΔN2+···+An×ΔNn,
Wherein, A1, A2 ..., An is weight coefficient Δ N1, Δ N2 ... Δ Nn is described indicators standard value and measured value it
Between the absolute value of difference, wherein n more than or equal to 1 for positive integer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964076A (en) * | 2018-07-17 | 2018-12-07 | 广东电网有限责任公司电网规划研究中心 | Regional power grid is idle program evaluation method and system, computer equipment, medium |
| CN116345701A (en) * | 2023-05-31 | 2023-06-27 | 国网安徽省电力有限公司合肥供电公司 | Low-voltage reactive compensation intelligent monitoring control system |
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| CN103593706A (en) * | 2013-11-25 | 2014-02-19 | 南京易司拓电力科技股份有限公司 | Substation reactive compensation capability assessment method |
| CN103647291A (en) * | 2013-12-24 | 2014-03-19 | 国家电网公司 | Control method and device for reactive compensation for power distribution network |
| CN103972905A (en) * | 2014-04-28 | 2014-08-06 | 广州供电局有限公司 | Reactive compensation optimization method of 400V distribution network areas per transformer |
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2016
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Patent Citations (4)
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| CN103515964A (en) * | 2012-06-29 | 2014-01-15 | 株式会社日立制作所 | Reactive compensation control method and reactive compensation control device |
| CN103593706A (en) * | 2013-11-25 | 2014-02-19 | 南京易司拓电力科技股份有限公司 | Substation reactive compensation capability assessment method |
| CN103647291A (en) * | 2013-12-24 | 2014-03-19 | 国家电网公司 | Control method and device for reactive compensation for power distribution network |
| CN103972905A (en) * | 2014-04-28 | 2014-08-06 | 广州供电局有限公司 | Reactive compensation optimization method of 400V distribution network areas per transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964076A (en) * | 2018-07-17 | 2018-12-07 | 广东电网有限责任公司电网规划研究中心 | Regional power grid is idle program evaluation method and system, computer equipment, medium |
| CN116345701A (en) * | 2023-05-31 | 2023-06-27 | 国网安徽省电力有限公司合肥供电公司 | Low-voltage reactive compensation intelligent monitoring control system |
| CN116345701B (en) * | 2023-05-31 | 2023-08-04 | 国网安徽省电力有限公司合肥供电公司 | Low-voltage reactive compensation intelligent monitoring control system |
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Denomination of invention: A method for evaluating voltage and reactive power compensation in distribution networks Granted publication date: 20190111 Pledgee: Nanjing Branch of Jiangsu Bank Co.,Ltd. Pledgor: NANJING ESTABLE ELECTRIC POWER TECHNOLOGY Co.,Ltd. Registration number: Y2024980040922 |
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