CN118224711B - Energy-saving control system for combined air conditioning unit - Google Patents
Energy-saving control system for combined air conditioning unit Download PDFInfo
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- CN118224711B CN118224711B CN202410642133.2A CN202410642133A CN118224711B CN 118224711 B CN118224711 B CN 118224711B CN 202410642133 A CN202410642133 A CN 202410642133A CN 118224711 B CN118224711 B CN 118224711B
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- 238000004378 air conditioning Methods 0.000 title claims description 107
- 238000010438 heat treatment Methods 0.000 claims description 32
- 230000002159 abnormal effect Effects 0.000 claims description 30
- 230000005856 abnormality Effects 0.000 claims description 24
- 230000011664 signaling Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 21
- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010977 unit operation Methods 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims description 2
- 238000011056 performance test Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/14—Activity of occupants
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
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- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an energy-saving control system for a combined air conditioner unit, which relates to the technical field of energy-saving control of air conditioners and is used for solving the problems that the energy-saving air conditioner unit system in the current market usually adopts a single control mode, cannot adapt to different working conditions and cannot realize optimal energy-saving control; the invention can monitor and analyze multiple parameters of the indoor environment of the air conditioner unit, correspondingly compensate and optimize the use power of the air conditioner according to the analysis result, not only can play a role in energy saving control, but also can further improve the comfort level of indoor personnel and avoid the overhigh or overlow indoor temperature.
Description
Technical Field
The invention relates to the technical field of energy-saving control of air conditioners, in particular to an energy-saving control system for a combined air conditioner unit.
Background
With climate change and economic development, air conditioning units have become an indispensable device in modern buildings. However, the use of the air conditioning unit also consumes a large amount of power resources, and places a great burden on the energy environment. In order to solve this problem, in recent years, researchers have begun to adopt various energy saving technologies, and have devised various novel air conditioning units to reduce the consumption of energy.
The energy-saving air conditioning unit system in the current market generally adopts a single control mode, cannot adapt to different working conditions and cannot realize optimal energy-saving control, thus causing unnecessary resource waste, and therefore, the energy-saving control system for the combined air conditioning unit is designed.
Disclosure of Invention
The invention aims to solve the problems that the energy-saving air conditioning unit system in the current market usually adopts a single control mode, cannot adapt to different working conditions and cannot realize optimal energy-saving control, and provides an energy-saving control system for a combined air conditioning unit.
The aim of the invention can be achieved by the following technical scheme:
An energy saving control system for a combined air conditioning unit, comprising:
The environment monitoring module is used for monitoring the indoor temperature and the indoor personnel number of the indoor environment in which the air conditioner operates in real time;
the testing module is used for testing the indoor heat insulation performance of the air conditioning unit;
The sub-regulation module is used for analyzing the indoor environment and controlling the air conditioning unit to regulate;
the energy saving and judging module is used for acquiring the indoor environment and analyzing and judging the energy saving and optimizing index;
When the operation mode of the air conditioner unit is in a refrigeration mode, the obtaining of the indoor environment parameters specifically comprises: the temperature sticking degree, the closing duty ratio of indoor equipment, the room temperature change rate and the standard deviation;
the obtained temperature sticking degree, the indoor equipment closing duty ratio, the room temperature change rate and the standard body are respectively calibrated as TC, GZ, WB and BC, and the standard body is substituted into a formula after normalization processing: To obtain the power-reducing value In the followingThe preset weight coefficients of the temperature sticking degree, the preset weight coefficient of the indoor equipment closing duty ratio, the preset weight coefficient of the room temperature change rate and the preset weight coefficient of the standard deviation are respectively taken as 1.331, 0.985, 1.021 and 1.036;
five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly arranged in the five continuous power reduction value intervals, the power reduction values are respectively 1%, 2%, 3%, 4% and 5%, and the calculated power reduction values are calculated Comparing with preset five power reduction value intervals, determining a power reduction value, and when the power reduction value is reachedThe higher the corresponding power reduction value interval is, the larger the corresponding reduced power is; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the refrigerating power of the running air conditioning unit;
When the operation mode of the air conditioner unit is in a heating mode, the obtaining of the indoor environment parameters specifically comprises: the number of indoor heat source points, the temperature sticking degree, the room temperature change rate and the standard deviation;
The number of the obtained indoor heat source points is calibrated as RS, normalized with the temperature sticking degree TC, the room temperature change rate WB and the standard deviation BC and then substituted into a formula: To obtain the power-reducing value In the followingThe weight coefficient is preset for the temperature sticking degree, the number of indoor heat source points is preset, the room temperature change rate is preset, and the standard deviation is preset, and the values are 1.331, 0.993, 1.021 and 1.036 respectively;
similarly, five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly arranged in the five continuous power reduction value intervals, namely 1%, 2%, 3%, 4% and 5% of the power reduction values, and the calculated power reduction values are calculated Comparing the power values with preset five power reduction value intervals to determine a power reduction value; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the heating power of the running air conditioning unit;
And the abnormality detection module is used for detecting and early warning the abnormal operation of the components in the air conditioning unit.
Further, the specific operation steps of the sub-regulation module for controlling the air conditioning unit to regulate are as follows:
firstly, acquiring the indoor temperature and the indoor personnel number detected in an environment monitoring module;
Meanwhile, receiving the set temperature of a user, calculating the temperature difference between the set temperature and the indoor temperature, and adjusting the operation power of the air conditioning unit according to the specific temperature difference;
Specific: after the temperature set by the user is obtained, determining a mode of operation required by the air conditioning unit, wherein the operation mode comprises refrigeration and heating; the method comprises the steps of presetting five continuous temperature difference intervals, comparing the calculated temperature difference with the five continuous temperature difference intervals, and determining a specific temperature difference interval to which the calculated temperature difference belongs, wherein the five continuous temperature difference intervals respectively correspond to five different running powers, namely when the real-time temperature difference is larger, the temperature difference interval to which the air conditioner unit belongs is higher, and the refrigerating or heating power of the air conditioner unit to the indoor is higher;
The number of indoor personnel is received, the number of indoor personnel is determined, and heating or refrigerating power compensation is carried out indoors through control of an air conditioning unit according to the interval condition of the number of people;
specific compensation rules: when the number of people in the room is in the number range of 1-3, giving 3% extra compensation to the heating or refrigerating power of the air conditioning unit; when the number of people in the room is in the number range of 4-6, giving additional compensation of 6% to the refrigerating or heating power of the air conditioning unit; when the number of people in the room is in the number range of 6-9, 9% of extra compensation is given to the heating or refrigerating power of the air conditioning unit;
when the number of indoor people is 0, presetting a waiting time, setting the waiting time to be 10min, 20min or 30min, and when the number of indoor people is 0 and exceeds the preset waiting time, operating an intermittent starting mode;
The specific intermittent starting is preset intermittent time and starting time, wherein the intermittent time is set to be 3min, 5min or 10min, and the corresponding starting time is set to be 1min, 2min or 3min; when the number of indoor people is 0, starting the air conditioning unit to run for a preset starting time after the intermittent time of the air conditioning unit is closed; and when the condition that people exist indoors is detected, the normal operation of the air conditioning unit is restored.
Further, the specific operation steps of the indoor heat insulation performance test are as follows:
Firstly, after the door and window in the room are closed, an air conditioning unit is started to heat or refrigerate the room, after the temperature difference between the room and the outside reaches 10 degrees, the operation of the air conditioning unit is stopped, the temperature in the room is monitored in real time, and the change rate of the temperature in the room is calculated according to the change condition and time of the temperature; the indoor temperature change rate represents the indoor heat insulation performance;
in the daily use process of the air conditioning unit, the indoor temperature is continuously monitored, when the difference between the change rate and the indoor temperature change rate obtained through testing exceeds a preset value, the condition that the indoor door and window is opened is judged, a warning light prompt is automatically generated, and a temperature change abnormal signaling is sent to a user terminal of the air conditioning unit so as to prompt the user to close the door and window in time.
Further, the specific operation steps of the abnormality detection module for abnormality detection are as follows:
the method comprises the steps of obtaining real-time running states of all parts in the air conditioning unit, wherein the specific parts comprise: compressor, fan, evaporator, condenser and pipeline system;
The method comprises the steps of detecting the abnormality of a compressor, namely monitoring the voltage and the current of the compressor during operation, establishing a voltage-current operation curve, presetting upper and lower limit values of the voltage and the current, inputting the upper and lower limit values into the current-voltage curve, generating a limit value line, and generating an abnormality signaling when the condition of crossing the upper and lower limit value lines exists in the current-voltage curve;
judging the abnormal detection of the fan through vibration and noise of the operation of the fan, and generating an abnormal signaling when abnormal vibration frequency or noise occurs;
the method comprises the steps that abnormal detection of an evaporator is carried out, temperature and humidity changes in the evaporator are judged, real-time temperature and humidity around the evaporator in operation are obtained, the obtained data are used for analyzing the change rate of the temperature and the humidity, and abnormal signaling is generated when the change rate is not in a preset change rate interval;
The anomaly detection of the condenser is carried out by analyzing the dewing and water drop photo on the surface of the condenser, judging whether the anomaly exists or not, and generating an anomaly signaling when the dewing and water drop anomaly exist in the obtained photo;
Detecting the abnormality of the pipeline system by using a gas leakage detector of a copper pipe, a steel pipe and an elastic pipe in the pipeline system to obtain data of the gas leakage detector, and generating an abnormality signaling when the gas leakage exists;
after the abnormal signaling is generated, recording the specific abnormal parts of the air conditioning unit, and sending the maintenance signaling to maintenance personnel to wait for the maintenance personnel to maintain the abnormal parts in the air conditioning unit.
Further, the temperature sticking degree is the difference between the indoor actual temperature and the set temperature of the air conditioning unit, and the smaller the difference is, the higher the temperature sticking degree is; the closing proportion of the indoor equipment is the quantity proportion of unopened electric equipment in the electric equipment which is placed in the room in total, wherein the indoor electric equipment is a computer, a refrigerator, a desk lamp or other heating appliances; the room temperature change rate is the heat insulation performance of the indoor test of the air conditioning unit operation in the test module; the standard body difference is the difference between the standard running volume corresponding to the air conditioning unit and the indoor actual volume, and only the condition that the indoor actual volume is smaller than the standard running volume is referred; the indoor heat source point is electric equipment, a power supply or other heating points in use.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the multi-parameter monitoring analysis can be carried out on the using indoor environment of the air conditioning unit, and the using power of the air conditioner is correspondingly compensated and optimized according to the analysis result, so that the energy-saving control effect can be achieved, the comfort level of indoor personnel can be further improved, and the indoor temperature is prevented from being too high or too low;
according to the invention, the abnormal parts are discovered in the first time through real-time monitoring of the parts of the air conditioning unit, so that unnecessary energy consumption of the air conditioning unit caused by faults is effectively avoided.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
Fig. 1 is a general block diagram of the system of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present disclosure is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. As used in the specification and claims of this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the present disclosure and claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As shown in fig. 1, an energy-saving control system for a combined air conditioning unit comprises an environment monitoring module, a testing module, a dividing and adjusting module, a judging module and an abnormality detecting module;
The environment monitoring module monitors the indoor environment of the air conditioner; the specific monitored environmental parameters include: indoor temperature and number of indoor personnel; the indoor temperature is monitored by a temperature sensor arranged indoors, and the number of indoor personnel can be detected in real time by a human body detection sensor arranged indoors;
the indoor environment is analyzed by the sub-regulation module, and the air conditioning unit is controlled to regulate;
Acquiring the indoor temperature and the indoor personnel number detected in the environment monitoring module; receiving the set temperature of a user, calculating the temperature difference between the set temperature and the indoor temperature, and adjusting the operation power of the air conditioning unit according to the specific temperature difference; specifically, after the temperature set by the user is obtained, determining a mode of operation required by the air conditioning unit, wherein the operation mode comprises refrigeration and heating; the method comprises the steps of presetting five continuous temperature difference intervals, comparing the calculated temperature difference with the five continuous temperature difference intervals, and determining a specific temperature difference interval to which the calculated temperature difference belongs, wherein the five continuous temperature difference intervals respectively correspond to five different running powers, namely when the real-time temperature difference is larger, the temperature difference interval to which the air conditioner unit belongs is higher, and the refrigerating or heating power of the air conditioner unit to the indoor is higher;
The number of indoor personnel is received, the number of indoor personnel is determined, and heating or refrigerating power compensation is carried out indoors through control of an air conditioning unit according to the interval condition of the number of people; specific: when the number of people in the room is in the number range of 1-3, giving 3% extra compensation to the heating or refrigerating power of the air conditioning unit; when the number of people in the room is in the number range of 4-6, giving additional compensation of 6% to the refrigerating or heating power of the air conditioning unit; when the number of people in the room is in the number range of 6-9, 9% of extra compensation is given to the heating or refrigerating power of the air conditioning unit; when the number of indoor people is 0, the waiting time is preset, the waiting time can be set to be 10min, 20min or 30min, and when the number of indoor people is 0 and exceeds the preset waiting time, the intermittent starting mode is operated; specific intermittent starting can preset intermittent time and starting time, for example, the intermittent time is set to be 3min, 5min or 10min, and the corresponding starting time can be set to be 1min, 2min or 3min; when the number of indoor people is 0, starting the air conditioning unit to run for a preset starting time after the intermittent time of the air conditioning unit is closed; when the condition that people exist indoors is detected, the normal operation of the air conditioning unit is restored;
The testing module tests the indoor heat insulation performance of the air conditioning unit; specific: after determining that the doors and windows in the room are closed, starting an air conditioning unit to heat or cool the room, stopping the operation of the air conditioning unit after the temperature difference between the room and the outside reaches 10 degrees, monitoring the temperature in the room in real time, and calculating the indoor temperature change rate according to the temperature change condition and time; the indoor temperature change rate can represent the indoor heat insulation performance; in the daily use process of the air conditioning unit, continuously monitoring the indoor temperature, judging that the indoor door and window is opened when the difference between the change rate and the indoor temperature change rate obtained by the test exceeds a preset value, automatically generating a warning light prompt, and sending a temperature change abnormal signaling to a user terminal of the air conditioning unit so as to prompt the user to close the door and window in time, thereby avoiding the waste of resources;
the energy saving and judging module is used for acquiring the indoor environment and analyzing and judging the energy saving and optimizing index; when the operation mode of the air conditioner unit is in a refrigeration mode, the obtaining of the indoor environment parameters specifically comprises: the temperature sticking degree, the closing duty ratio of indoor equipment, the room temperature change rate and the standard deviation; the temperature sticking degree is the difference between the indoor actual temperature and the set temperature of the air conditioning unit, and the smaller the difference is, the higher the temperature sticking degree is; the closing proportion of the indoor equipment is the quantity proportion of unopened electric equipment in the electric equipment which is placed in the room in total, wherein the indoor electric equipment can be a computer, a refrigerator, a desk lamp or other heating appliances; the room temperature change rate is the heat insulation performance of the indoor test of the air conditioning unit operation in the test module; the standard body difference is the difference between the standard running volume corresponding to the air conditioning unit and the indoor actual volume, and only the condition that the indoor actual volume is smaller than the standard running volume is referred;
and respectively calibrating the obtained temperature sticking degree, the indoor equipment closing duty ratio, the room temperature change rate and the standard body as TC, GZ, WB and BC, and substituting the normalized values into a formula: To obtain the power-reducing value In the followingThe preset weight coefficients of the temperature sticking degree, the preset weight coefficient of the indoor equipment closing duty ratio, the preset weight coefficient of the room temperature change rate and the preset weight coefficient of the standard deviation are respectively taken as 1.331, 0.985, 1.021 and 1.036; the formula can be derived from: when the temperature sticking degree TC, the indoor equipment closing ratio GZ and the standard body difference BC are larger, the room temperature change rate WB is smaller, the calculated power reduction value is obtainedThe larger;
five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly arranged in the five continuous power reduction value intervals, the power reduction values are respectively 1%, 2%, 3%, 4% and 5%, and the calculated power reduction values are calculated Comparing with preset five power reduction value intervals, determining a power reduction value, and when the power reduction value is reachedThe higher the corresponding power reduction value interval is, the larger the corresponding reduced power is; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the refrigerating power of the running air conditioning unit;
When the operation mode of the air conditioner unit is in a heating mode, the obtaining of the indoor environment parameters specifically comprises: the indoor heat source points are electric equipment, power supply or other heating points in use; the number of the obtained indoor heat source points is calibrated as RS, normalized with the temperature sticking degree TC, the room temperature change rate WB and the standard deviation BC and then substituted into a formula: To obtain the power-reducing value In the followingThe weight coefficient is preset for the temperature sticking degree, the number of indoor heat source points is preset, the room temperature change rate is preset, and the standard deviation is preset, and the values are 1.331, 0.993, 1.021 and 1.036 respectively;
similarly, five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly arranged in the five continuous power reduction value intervals, namely 1%, 2%, 3%, 4% and 5% of the power reduction values, and the calculated power reduction values are calculated Comparing with preset five power reduction value intervals, determining a power reduction value, and when the power reduction value is reachedThe higher the corresponding power reduction value interval is, the larger the corresponding reduced power is; and after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the heating power of the running air conditioning unit.
The abnormality detection module is used for detecting the operation abnormality of the air conditioner unit;
Specific: the method comprises the steps of obtaining real-time running states of all parts in the air conditioning unit, wherein the specific parts comprise: compressor, fan, evaporator, condenser and pipeline system; the abnormal detection of the compressor can be realized by monitoring the voltage and the current of the compressor during operation, establishing a voltage-current operation curve, presetting upper and lower limit values of the voltage and the current, inputting the upper and lower limit values into the current-voltage curve, generating a limit value line, and generating an abnormal signaling when the condition of crossing the upper and lower limit value lines exists in the current-voltage curve; the abnormal detection of the fan can be judged through vibration and noise of the operation of the fan, and when abnormal vibration frequency or noise occurs, abnormal signaling is generated; the abnormality detection of the evaporator can be carried out by judging the temperature and humidity changes in the evaporator, acquiring the real-time temperature and humidity around the evaporator during operation, analyzing the change rate of the temperature and the humidity according to the acquired data, and generating an abnormality signaling when the change rate is not in a preset change rate interval; the anomaly detection of the condenser is carried out by analyzing the dewing and water drop photo on the surface of the condenser, judging whether the anomaly exists or not, and generating an anomaly signaling when the dewing and water drop anomaly exist in the obtained photo; the abnormality detection of the pipeline system can be carried out by utilizing a gas leakage detector of a copper pipe, a steel pipe and an elastic pipe in the pipeline system to obtain data of the gas leakage detector, and when the gas leakage condition exists, an abnormality signaling is generated;
After the abnormal signaling is generated, the specific abnormal components of the air conditioning unit are recorded, and the maintenance signaling is sent to maintenance personnel to wait for the maintenance of the abnormal components in the air conditioning unit, so that unnecessary energy consumption of the air conditioning unit due to faults is avoided.
When the indoor temperature and the indoor personnel quantity detected by the environment detection module are analyzed by the adjustment module, the indoor temperature and the indoor personnel quantity are specifically: after the temperature set by the user is obtained, determining a mode of operation required by the air conditioning unit, wherein the operation mode comprises refrigeration and heating; the method comprises the steps of presetting five continuous temperature difference intervals, comparing the calculated temperature difference with the five continuous temperature difference intervals, and determining a specific temperature difference interval to which the calculated temperature difference belongs, wherein the five continuous temperature difference intervals respectively correspond to five different running powers, namely when the real-time temperature difference is larger, the temperature difference interval to which the air conditioner unit belongs is higher, and the refrigerating or heating power of the air conditioner unit to the indoor is higher; the number of indoor personnel is received, the number of indoor personnel is determined, and heating or refrigerating power compensation is carried out indoors through control of an air conditioning unit according to the interval condition of the number of people; meanwhile, when the number of indoor people is 0, the waiting time is preset, the waiting time is set to be 10min, 20min or 30min, and when the number of indoor people is 0 and exceeds the preset waiting time, the intermittent starting mode is operated;
The indoor environment is obtained through the section judging module, the energy-saving optimizing index is analyzed and judged, the air conditioning unit is controlled to perform corresponding power optimization, the energy-saving effect is achieved, and when the operation mode of the air conditioning unit is in the refrigeration mode, the indoor environment parameter obtaining specifically comprises the following steps: the temperature sticking degree, the closing duty ratio of indoor equipment, the room temperature change rate and the standard deviation; substituting the parameters into a formula to obtain a power reduction value, presetting five continuous power reduction value intervals, respectively setting five optimized power reduction values corresponding to the five continuous power reduction value intervals, namely 1%, 2%, 3%, 4% and 5% of power reduction values, comparing the calculated power reduction value with the preset five power reduction value intervals, determining the power reduction value, and when the power reduction value is higher, the corresponding power reduction value interval is larger, and the corresponding power reduction value is larger; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the refrigerating power of the running air conditioning unit; obtaining a reduction optimization index corresponding to the heating power in the same analysis mode;
Meanwhile, the abnormality detection module can be used for detecting and early warning the abnormal operation of the components in the air conditioning unit, so that the abnormality of each component of the air conditioning unit in operation can be found in time, and unnecessary energy consumption of the air conditioning unit caused by faults is avoided.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (4)
1. An energy saving control system for a combined air conditioning unit, comprising:
The environment monitoring module is used for monitoring the indoor temperature and the indoor personnel number of the indoor environment in which the air conditioner operates in real time;
the testing module is used for testing the indoor heat insulation performance of the air conditioning unit;
The sub-regulation module is used for analyzing the indoor environment and controlling the air conditioning unit to regulate;
Characterized by further comprising:
the energy saving and judging module is used for acquiring the indoor environment and analyzing and judging the energy saving and optimizing index;
when the operation mode of the air conditioner unit is in a refrigerating mode, acquiring the temperature sticking degree, the closing duty ratio of indoor equipment, the room temperature change rate and the standard deviation;
Respectively calibrating the temperature sticking degree, the indoor equipment closing duty ratio, the room temperature change rate and the standard body as TC, GZ, WB and BC, and substituting the numerical values into a formula after normalization processing: The method comprises the steps of obtaining a power reduction value JXZ l, wherein alpha, beta, χ and delta are respectively preset weight coefficients of the temperature sticking degree, preset weight coefficients of the indoor equipment closing ratio, preset weight coefficients of the room temperature change rate and preset weight coefficients of the standard deviation;
Five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly set in the five continuous power reduction value intervals, namely 1%, 2%, 3%, 4% and 5% of power reduction values are respectively calculated, the calculated power reduction value JXZ l is compared with the preset five power reduction value intervals, the power reduction value is determined, and when the power reduction value JXZ l is higher, the corresponding power reduction value interval is larger, and the corresponding power reduction value is larger; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the refrigerating power of the running air conditioning unit;
when the operation mode of the air conditioner unit is in a heating mode, acquiring the number of indoor heat source points, the temperature sticking degree, the room temperature change rate and the standard deviation;
The number of the obtained indoor heat source points is calibrated as RS, normalized with the temperature sticking degree TC, the room temperature change rate WB and the standard deviation BC and then substituted into a formula: to obtain a power-down value JXZ r, wherein alpha, beta, χ and delta are respectively preset weight coefficients of the temperature sticking degree, the number of indoor heat source points, the room temperature change rate and the standard deviation;
Five continuous power reduction value intervals are preset, five optimized power reduction values are respectively and correspondingly set in the five continuous power reduction value intervals, the power reduction values are respectively 1%, 2%, 3%, 4% and 5%, the calculated power reduction values JXZ r are compared with the preset five power reduction value intervals, and the power reduction values are determined; after determining the reduced power of the air conditioning unit, carrying out corresponding reduction optimization on the heating power of the running air conditioning unit;
The temperature sticking degree is the difference between the indoor actual temperature and the set temperature of the air conditioning unit, and the temperature sticking degree is higher when the difference is smaller; the closing proportion of the indoor equipment is the quantity proportion of unopened electric equipment in the electric equipment which is placed in the indoor room; the room temperature change rate is the heat insulation performance of the indoor test of the air conditioning unit operation in the test module; the standard body difference is the difference between the standard running volume corresponding to the air conditioning unit and the indoor actual volume, and only the condition that the indoor actual volume is smaller than the standard running volume is referred.
2. The energy-saving control system for a combined air conditioning unit according to claim 1, wherein the specific operation steps of the split-tuning module for controlling the air conditioning unit to perform tuning are as follows:
firstly, acquiring the indoor temperature and the indoor personnel number detected in an environment monitoring module;
Meanwhile, receiving the set temperature of a user, calculating the temperature difference between the set temperature and the indoor temperature, and adjusting the operation power of the air conditioning unit according to the specific temperature difference;
Specific: after the temperature set by the user is obtained, determining a mode of operation required by the air conditioning unit, wherein the operation mode comprises refrigeration and heating; the method comprises the steps of presetting five continuous temperature difference intervals, comparing the calculated temperature difference with the five continuous temperature difference intervals, and determining a specific temperature difference interval to which the calculated temperature difference belongs, wherein the five continuous temperature difference intervals respectively correspond to five different running powers, namely when the real-time temperature difference is larger, the temperature difference interval to which the air conditioner unit belongs is higher, and the refrigerating or heating power of the air conditioner unit to the indoor is higher;
The number of indoor personnel is received, the number of indoor personnel is determined, and heating or refrigerating power compensation is carried out indoors through control of an air conditioning unit according to the interval condition of the number of people;
specific compensation rules: when the number of people in the room is in the number range of 1-3, giving 3% extra compensation to the heating or refrigerating power of the air conditioning unit; when the number of people in the room is in the number range of 4-6, giving additional compensation of 6% to the refrigerating or heating power of the air conditioning unit; when the number of people in the room is in the number range of 6-9, 9% of extra compensation is given to the heating or refrigerating power of the air conditioning unit;
when the number of indoor people is 0, presetting a waiting time, setting the waiting time to be 10min, 20min or 30min, and when the number of indoor people is 0 and exceeds the preset waiting time, operating an intermittent starting mode;
The specific intermittent starting is preset intermittent time and starting time, wherein the intermittent time is set to be 3min, 5min or 10min, and the corresponding starting time is set to be 1min, 2min or 3min; when the number of indoor people is 0, starting the air conditioning unit to run for a preset starting time after the intermittent time of the air conditioning unit is closed; and when the condition that people exist indoors is detected, the normal operation of the air conditioning unit is restored.
3. The energy saving control system for a combined air conditioning unit according to claim 1, wherein the specific operation steps of the indoor heat insulation performance test are as follows:
Firstly, after the door and window in the room are closed, an air conditioning unit is started to heat or refrigerate the room, after the temperature difference between the room and the outside reaches 10 degrees, the operation of the air conditioning unit is stopped, the temperature in the room is monitored in real time, and the change rate of the temperature in the room is calculated according to the change condition and time of the temperature; the indoor temperature change rate represents the indoor heat insulation performance;
in the daily use process of the air conditioning unit, the indoor temperature is continuously monitored, when the difference between the change rate and the indoor temperature change rate obtained through testing exceeds a preset value, the condition that the indoor door and window is opened is judged, a warning light prompt is automatically generated, and a temperature change abnormal signaling is sent to a user terminal of the air conditioning unit so as to prompt the user to close the door and window in time.
4. The energy-saving control system for a combined air conditioning unit according to claim 1, further comprising an abnormality detection module, wherein the abnormality detection module is used for detecting and early warning an operation abnormality of a component in the air conditioning unit, and the specific operation steps for abnormality detection are as follows:
the method comprises the steps of obtaining real-time running states of all parts in the air conditioning unit, wherein the specific parts comprise: compressor, fan, evaporator, condenser and pipeline system;
The method comprises the steps of detecting the abnormality of a compressor, namely monitoring the voltage and the current of the compressor during operation, establishing a voltage-current operation curve, presetting upper and lower limit values of the voltage and the current, inputting the upper and lower limit values into the current-voltage curve, generating a limit value line, and generating an abnormality signaling when the condition of crossing the upper and lower limit value lines exists in the current-voltage curve;
judging the abnormal detection of the fan through vibration and noise of the operation of the fan, and generating an abnormal signaling when abnormal vibration frequency or noise occurs;
the method comprises the steps that abnormal detection of an evaporator is carried out, temperature and humidity changes in the evaporator are judged, real-time temperature and humidity around the evaporator in operation are obtained, the obtained data are used for analyzing the change rate of the temperature and the humidity, and abnormal signaling is generated when the change rate is not in a preset change rate interval;
The anomaly detection of the condenser is carried out by analyzing the dewing and water drop photo on the surface of the condenser, judging whether the anomaly exists or not, and generating an anomaly signaling when the dewing and water drop anomaly exist in the obtained photo;
Detecting the abnormality of the pipeline system by using a gas leakage detector of a copper pipe, a steel pipe and an elastic pipe in the pipeline system to obtain data of the gas leakage detector, and generating an abnormality signaling when the gas leakage exists;
after the abnormal signaling is generated, recording the specific abnormal parts of the air conditioning unit, and sending the maintenance signaling to maintenance personnel to wait for the maintenance personnel to maintain the abnormal parts in the air conditioning unit.
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