CN117433112A - Method and device for controlling multi-split air conditioner compressor system, electronic equipment and storage medium - Google Patents
Method and device for controlling multi-split air conditioner compressor system, electronic equipment and storage medium Download PDFInfo
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- CN117433112A CN117433112A CN202210833497.XA CN202210833497A CN117433112A CN 117433112 A CN117433112 A CN 117433112A CN 202210833497 A CN202210833497 A CN 202210833497A CN 117433112 A CN117433112 A CN 117433112A
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000003860 storage Methods 0.000 title claims abstract description 21
- 238000012937 correction Methods 0.000 claims description 48
- 238000009434 installation Methods 0.000 claims description 23
- 238000004422 calculation algorithm Methods 0.000 claims description 21
- 238000010586 diagram Methods 0.000 claims description 17
- 238000001704 evaporation Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 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
- F24F11/47—Responding to energy costs
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The application relates to the technical field of compressor control, and discloses a method for controlling a multi-split compressor system, wherein the multi-split compressor system is provided with a plurality of compressors, and the method comprises the following steps: and respectively acquiring the accumulated running time of each compressor. The operating region in which each compressor is located is determined. And respectively correcting the accumulated running time of each compressor according to each running area to obtain corrected running time. And determining the compressors to be operated from the compressors according to the corrected operation time, and triggering the compressors to be operated to start. The real loss condition of each compressor can be represented by correcting the running time. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved. The application also discloses a device for controlling the multi-split compressor system, electronic equipment and a storage medium.
Description
Technical Field
The present disclosure relates to the field of compressor control technologies, and for example, to a method and apparatus for controlling a multi-split compressor system, an electronic device, and a storage medium.
Background
At present, in a multi-split system, the reliable operation of compressors is influenced by a starting mode, a capacity distribution mode and the like, and if synchronous and reliable operation of all compressors cannot be realized, individual compression probability fails first, so that continuous and stable operation of the multi-split system is influenced.
In order to enable the multi-split system to continuously and stably operate, in the related art, the compressors are generally sequenced according to the accumulated operation time by acquiring the accumulated operation time of each compressor, and then the compressors are rotated according to the priority order according to the requirement. However, when the compressors are started under heating and low load, all the compressors need to operate to switch the four-way valve, and then the unit which does not count into operation stops operating. If the above situation occurs many times, the individual compressors are always started and stopped, and then started and stopped again. In order to ensure the correct reversing of the four-way reversing valve, the phenomenon that the compressor spits oil and cannot return oil can occur when the unit is started every time, and the damage is likely to occur for a long time. Although the cumulative time for start-up and stop is not large, it is difficult to reflect the actual loss of the compressor for a long time because the cumulative operation time of the compressor is not counted. Thus, it is difficult to achieve synchronous and reliable operation of all compressors, resulting in poor operation reliability of the multi-split system.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for controlling a multi-split air conditioner compressor system, electronic equipment and a storage medium, so that the operation reliability of the multi-split air conditioner compressor system can be improved.
In some embodiments, the method for controlling a multi-split compressor system provided with a plurality of compressors includes: and respectively acquiring the accumulated running time of each compressor. And determining an operation area of each compressor, wherein the operation area is used for representing the reliability of the compressor in operation. And respectively correcting the accumulated running time of each compressor according to each running area to obtain corrected running time. And determining a compressor to be operated from the compressors according to the corrected operation time, and triggering the start of the compressor to be operated.
In some embodiments, determining an operating region in which the compressor is located includes: and acquiring the evaporation pressure and the condensation pressure of the compressor in the accumulated running time. And searching an operation area where the compressor is located from a preset operation area diagram according to the evaporation pressure and the condensation pressure. The operation area map stores the correspondence between the evaporation pressure, the condensation pressure and the operation area.
In some embodiments, correcting the accumulated operating time of the compressor according to the operating region to obtain a corrected operating time includes: and obtaining a time coefficient corresponding to the operation area. Multiplying the time coefficient by the accumulated running time to obtain the corrected running time.
In some embodiments, determining a compressor to be operated from the compressors according to the corrected operation time includes: and obtaining the target demand output capacity of the multi-split compressor system. And sequencing the compressors according to the order from short to long of the corrected operation time to obtain a compressor operation sequence. And determining the compressor to be operated from the compressor operation sequence according to the target required output capacity.
In some embodiments, the multiple on-line compressor system is provided with a plurality of internal machines; the obtaining the target demand output capacity of the multi-split compressor system comprises the following steps: and acquiring an operation mode corresponding to the multi-split air conditioner compressor system. And under the condition that the operation mode is refrigeration operation, acquiring a first indoor environment temperature correction coefficient, a first outdoor environment temperature correction coefficient, a first internal machine installation characteristic coefficient and a first internal machine capacity of the internal machine in a starting state. And calculating according to a first preset algorithm by using the first indoor environment temperature correction coefficient, the first outdoor environment temperature correction coefficient, the first internal machine installation characteristic coefficient and the first internal machine capacity to obtain the target required output capacity.
In some embodiments, the multiple on-line compressor system is provided with a plurality of internal machines; the obtaining the target demand output capacity of the multi-split compressor system comprises the following steps: and acquiring an operation mode corresponding to the multi-split air conditioner compressor system. And under the condition that the operation mode is heating operation, acquiring a second indoor environment temperature correction coefficient, a second outdoor environment temperature correction coefficient, a second internal machine installation characteristic coefficient and a second internal machine capacity of the internal machine in a starting state, and acquiring a third internal machine capacity of the internal machine in a shutdown state or a standby state. And calculating according to a second preset algorithm by using the second indoor environment temperature correction coefficient, the second outdoor environment temperature correction coefficient, the second internal machine installation characteristic coefficient, the second internal machine capacity and the third internal machine capacity to obtain the target required output capacity.
In some embodiments, determining a compressor to be operated from the compressor operating sequence according to the target demand output capacity includes: and obtaining rated output capacity of each compressor in the compressor operation sequence. And calculating according to a third preset algorithm by utilizing the rated output capacity and the target required output capacity, and determining the compressor to be operated from the compressor operation sequence.
In some embodiments, after triggering the start-up of the compressor to be operated, the method further comprises: and monitoring the target demand output capacity of the multi-split compressor system. Determining a compressor to be added from the compressors which are not started in the compressor operation sequence under the condition that the target demand output capacity of the multi-split compressor system is increased and the increased target demand output capacity is larger than a first target value; the first target value is a first preset multiple of the sum of rated output capacities of the started compressors. Triggering the compressor to be added to start.
In some embodiments, after triggering the start-up of the compressor to be operated, the method further comprises: and monitoring the target demand output capacity of the multi-split compressor system. And determining a compressor to be stopped from the started compressors of the compressor operation sequence under the condition that the target demand output capacity of the multi-connected air conditioner compressor system is reduced and the reduced target demand output capacity is smaller than or equal to a second target value. The second target value is a second preset multiple of the sum of rated output capacities of the started compressors. Triggering the compressor to be stopped to stop.
In some embodiments, after triggering the start-up of the compressor to be operated, the method further comprises: and monitoring each compressor in the multi-split compressor system. And determining the compressor with the corrected running time reaching the preset total duration as the compressor to be replaced. And determining that the compressors to be added are determined from the compressors which are not started in the compressor operation sequence. Triggering the compressors to be increased to start and triggering the compressors to be replaced to stop.
In some embodiments, the apparatus for controlling a multi-split compressor system includes: the compressor control system comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the method for controlling the multi-split compressor system when executing the program instructions.
In some embodiments, the electronic device comprises the device for controlling the multi-split compressor system.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling a multi-split compressor system described above.
The method and device for controlling the multi-split compressor system, the electronic equipment and the storage medium provided by the embodiment of the disclosure can realize the following technical effects: by separately obtaining the cumulative operating time of each compressor. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of a method for controlling a multiple on-line compressor system provided by an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of an operating area diagram of a compressor provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another method for controlling a multi-split compressor system provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for controlling a multi-split compressor system provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another method for controlling a multi-split compressor system provided by an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of an internal machine temperature sensor location provided by an embodiment of the present disclosure;
fig. 7 is a schematic diagram of an apparatus for controlling a multiple on-line compressor system provided in an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure 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 in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
The technical scheme of the embodiment of the invention can be applied to electronic equipment such as computers, servers or tablet computers.
In the embodiment of the invention, the electronic equipment respectively obtains the accumulated running time of each compressor. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. Therefore, when the compressors to be operated are determined from the compressors according to the corrected operation time, the operation reliability of the compressors to be operated is higher, and the operation reliability of the multi-split system is improved.
Referring to fig. 1, an embodiment of the present disclosure provides a method for controlling a multi-split compressor system provided with a plurality of compressors, the method including:
in step S101, the electronic device obtains the accumulated running time of each compressor.
Step S102, the electronic equipment determines the operation area of each compressor; the operating region is used to characterize the reliability of the compressor when in operation.
Step S103, the electronic equipment corrects the accumulated running time of each compressor according to each running area to obtain corrected running time.
Step S104, the electronic equipment determines the compressors to be operated from the compressors according to the corrected operation time.
Step S105, the electronic device triggers the start of the compressor to be operated.
By adopting the method for controlling the multi-split compressor system, provided by the embodiment of the disclosure, the accumulated running time of each compressor is respectively obtained. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved.
Further, the electronic device determines an operation area where the compressor is located, including: the electronics acquire the vapor pressure and the condensing pressure of the compressor over the accumulated run time. And searching an operation area where the compressor is located from a preset operation area diagram according to the evaporation pressure and the condensation pressure. The operating region map stores the correspondence between the evaporating pressure, condensing pressure, and operating region.
In some embodiments, region 1 is used to characterize the compressor as being in the most reliable operating region. Region 2 is used to characterize that the compressor is at the edge of the reliable operation region, and that compressor reliability problems may occur in region 2, but with a low probability. Region 3 is used to characterize that the compressor is outside the reliable operating region, and the probability of a reliability problem occurring in region 3 is high.
Further, the multi-split compressor system is provided with a pressure monitoring device, and the electronic equipment obtains the evaporating pressure and the condensing pressure of the compressor in the accumulated running time, and the multi-split compressor system comprises: the electronic equipment monitors the compressor by using the pressure monitoring device to obtain the evaporation pressure and the condensation pressure of the compressor in the accumulated running time.
Referring to fig. 2, fig. 2 is a schematic view of an operating area diagram of a compressor provided in accordance with an embodiment of the present disclosure. In some embodiments, in the case that the evaporating pressure of the compressor is 0.8 and the condensing pressure is 2.5, the operating area in which the compressor is located is found to be area 1 from the operating area map.
Further, the electronic device corrects the accumulated running time of the compressor according to the running area to obtain corrected running time, including: and the electronic equipment acquires the time coefficient corresponding to the operation area. And multiplying the time coefficient by the accumulated running time to obtain the corrected running time. Thus, the accumulated running time can be further refined by correcting the accumulated running time, and the starting and stopping time when the compressor fails is considered. The corrected running time can reflect the actual loss condition of the compressor.
Further, the electronic device obtains a time coefficient corresponding to the operation area, including: the electronic equipment matches the time coefficient corresponding to the operation area from a preset time coefficient table. The time coefficient table stores the correspondence between the operation area and the time coefficient.
In some embodiments, as shown in table 1, table 1 is an example table of time coefficient tables provided by embodiments of the present disclosure.
| Operating region | Time coefficient |
| Zone 1 | K0 |
| Zone 2 | K1 |
| Zone 3 | K2 |
TABLE 1
In some embodiments, the time coefficient k0=1 < K1 < K2 as in table 1. In the case where the operation region of the compressor is region 1, the corresponding time coefficient is K0. In the case where the operation region of the compressor is region 2, the corresponding time coefficient is K1. In the case where the operation region of the compressor is region 3, the corresponding time coefficient is K2. Since region 1 is the most reliable operating region for compressor operation, the time coefficient K0 is 1. Since region 2 is an operating region where compressor reliability problems are likely to occur, and region 3 is an operating region where compressor reliability problems are likely to occur, the time coefficient 1 < K2.
Further, the electronic device determines a compressor to be operated from the compressors according to the corrected operation time, including: the electronic equipment obtains the target demand output capacity of the multi-split compressor system. And sequencing the compressors according to the order from short to long of the corrected running time to obtain a compressor running sequence. And determining the compressor to be operated from the compressor operation sequence according to the target required output capacity. Therefore, by sequencing the compressors according to the order from short to long in the corrected running time, the compressors are started according to the compressor running sequence when being restarted next time, so that the compressor rotation operation in the multi-split compressor system is simple and reliable.
Further, the multi-split air conditioner compressor system is provided with a plurality of internal machines; obtaining a target demand output capacity of a multi-split compressor system, comprising: and acquiring the corresponding operation mode of the multi-split compressor system. And under the condition that the operation mode is refrigeration operation, acquiring a first indoor environment temperature correction coefficient, a first outdoor environment temperature correction coefficient, a first internal machine installation characteristic coefficient and a first internal machine capacity of the internal machine in a starting state. And calculating according to a first preset algorithm by using the first indoor environment temperature correction coefficient, the first outdoor environment temperature correction coefficient, the first internal machine installation characteristic coefficient and the first internal machine capacity to obtain target required output capacity.
Further, according to a first preset algorithm, calculating by using a first indoor environment temperature correction coefficient, a first outdoor environment temperature correction coefficient, a first internal machine installation characteristic coefficient and a first internal machine capacity to obtainObtaining target demand output capability, including: by calculation ofA target demand output capability is obtained. Wherein Qc is the target demand output capacity, kc is the first outdoor environment temperature correction coefficient, and n is the total number of all internal machines in the multi-connected air conditioner compressor system. K (K) i,j A first indoor environment temperature correction coefficient L for the j-th internal machine in a starting state i,j Installing characteristic coefficients for a first internal machine of the j-th internal machine in a starting state, Q i,j And the first internal unit capacity of the internal unit in the power-on state of the j-th station. In some embodiments, the first internal machine capacity is a predetermined value.
Further, the electronic device obtains a first indoor environment temperature correction coefficient of the internal machine in a starting state, including: the electronic equipment acquires indoor environment temperature and running temperature of an internal machine; and calculating by utilizing the indoor environment temperature and the running temperature of the internal machine according to a fourth preset algorithm to obtain a first indoor environment temperature correction coefficient. In some embodiments, the operating temperature of the internal machine is a user-set temperature.
Further, according to a fourth preset algorithm, calculating by using the indoor environment temperature and the running temperature of the internal machine, to obtain a first indoor environment temperature correction coefficient, including: by calculation ofA first indoor ambient temperature correction coefficient is obtained. Wherein K is i,j And i is used for representing the first indoor environment temperature correction coefficient of the internal machine in the power-on state. T (T) ai,j For the indoor environment temperature corresponding to the j-th internal machine in the starting-up state, T set,j The operation temperature T of the j-th internal machine in the starting state ao Is the outdoor ambient temperature.
Further, the electronic device obtains a first internal machine installation characteristic coefficient of the internal machine in the starting state, including: the electronic equipment acquires the liquid pipe temperature of all the internal machines in the starting state and the outlet temperature of the outdoor heat exchanger; and calculating by utilizing the liquid pipe temperature of the inner machine and the outlet temperature of the outdoor heat exchanger according to a fifth preset algorithm to obtain the first inner machine installation characteristic coefficient.
Further, the electronic device calculates, according to a fifth preset algorithm, by using a liquid pipe temperature of the internal machine and an outlet temperature of the outdoor heat exchanger, to obtain a first internal machine installation feature coefficient, including: by calculation of electronic devicesAnd obtaining a first internal machine installation characteristic coefficient. Wherein L is i,j Installing characteristic coefficients for a first internal machine of the j-th internal machine in a starting state, wherein i is used for representing the internal machine, T l,j The temperature of the liquid pipe of the jth internal machine. Te is the outlet temperature of the outdoor heat exchanger, T l average Is the average value of the sum of the liquid pipe temperatures of all the internal machines in the starting state.
Further, the multi-split air conditioner compressor system is provided with a plurality of internal machines; obtaining target demand output capability, including: and acquiring the corresponding operation mode of the multi-split compressor system. And under the condition that the operation mode is heating operation, acquiring a second indoor environment temperature correction coefficient, a second outdoor environment temperature correction coefficient, a second internal machine installation characteristic coefficient and a second internal machine capacity of the internal machine in a starting state, and acquiring a third internal machine capacity of the internal machine in a shutdown state or a standby state. And calculating according to a second preset algorithm by using a second indoor environment temperature correction coefficient, a second outdoor environment temperature correction coefficient, a second internal machine installation characteristic coefficient, a second internal machine capacity and a third internal machine capacity to obtain target required output capacity.
Further, calculating, according to a second preset algorithm, by using a second indoor environment temperature correction coefficient, a second outdoor environment temperature correction coefficient, a second internal unit installation feature coefficient, a second internal unit capacity and a third internal unit capacity, to obtain a target required output capacity, including: by calculation of A target demand output capability is obtained. Wherein Qc is the target demand output capacity and kh is the second chamberAnd the external environment temperature correction coefficient, n is the total number of all internal machines in the multi-connected air conditioner compressor system. K'. i,j A second indoor environment temperature correction coefficient L 'for the j-th internal machine in the starting state' i,j Installing characteristic coefficients, Q 'for a second internal machine of the j-th internal machine in a starting state' i,j And the second internal unit capacity of the internal unit in the power-on state of the j-th station. L'. i,k Installing characteristic coefficients Q 'for a second internal machine of the kth internal machine in a shutdown or standby state' i,k And the third internal machine capacity of the internal machine in the shutdown or standby state of the kth station. In some embodiments, the second internal machine installation feature factor is a pre-set factor.
Further, the electronic device obtains a second indoor environment temperature correction coefficient of the internal machine in a starting state, including: the electronic equipment acquires indoor environment temperature and running temperature of an internal machine; and calculating by utilizing the indoor environment temperature and the running temperature of the internal machine according to a sixth preset algorithm to obtain a second indoor environment temperature correction coefficient. In some embodiments, the operating temperature of the internal machine is a user-set temperature.
Further, according to a fifth preset algorithm, calculating by using the indoor environment temperature and the running temperature of the internal machine, to obtain a second indoor environment temperature correction coefficient, including: by calculation ofAnd obtaining a second indoor environment temperature correction coefficient. Wherein, K' i，j And i is a second indoor environment temperature correction coefficient of the internal machine in the power-on state of the j-th internal machine, and is used for representing the internal machine. T (T) ai,j For the indoor environment temperature corresponding to the j-th internal machine in the starting-up state, T set,j The operation temperature T of the j-th internal machine in the starting state ao Is the outdoor ambient temperature.
Further, the electronic device obtains a second internal machine installation characteristic coefficient of the internal machine in the starting state, including: the electronic equipment acquires the air pipe temperature of all the internal machines in the starting state and the outlet temperature of the outdoor air stop valve; and calculating by utilizing the air pipe temperature of the inner machine and the outlet temperature of the outdoor air stop valve according to a seventh preset algorithm to obtain a second inner machine installation characteristic coefficient.
Further, according to a seventh preset algorithm, calculating by using the temperature of the liquid pipe of the internal unit and the outlet temperature of the outdoor air stop valve, to obtain a second installation characteristic coefficient of the internal unit, including: by calculation of electronic devicesAnd obtaining a second internal machine installation characteristic coefficient. Wherein L is i,j Installing characteristic coefficients for a second internal machine of the j-th internal machine in a starting state, wherein i is used for representing the internal machine, T g,j The temperature of the air pipe of the jth internal machine. TG is the outlet temperature of the outdoor air stop valve, T g average Is the average value of the sum of the air pipe temperatures of all the internal machines in the starting state.
Further, determining the compressor to be operated from the compressor operation sequence according to the target required output capacity includes: the rated output capacity of each compressor in the compressor run sequence is obtained. And calculating according to a third preset algorithm by utilizing each rated output capacity and target required output capacity, and determining the compressor to be operated from the compressor operation sequence.
Further, according to a third preset algorithm, calculating by using each rated output capacity and target required output capacity, and determining a compressor to be operated from a compressor operation sequence, including: by calculating Qc.ltoreq.0.75× (Q 1 +Q 2 +…+Q j ) Obtaining the required quantity of the compressors; wherein Qc is the target demand output capability, Q j Is the rated output capacity of the j-th compressor. And determining the first j compressors in the compressor operation sequence as compressors to be operated. Thus, by setting the preset coefficient of 0.75, the compressors can be ensured not to run under full load as much as possible, and the energy efficiency of each compressor can be ensured.
Further, after the electronic device triggers the compressor to be operated to start, the method further includes: the electronic equipment monitors the target demand output capacity of the multi-split compressor system. And under the condition that the target demand output capacity of the multi-split compressor system is increased and the increased target demand output capacity is larger than a first target value, determining the compressor to be increased from the compressors which are not started in the compressor operation sequence. The first target value is a first preset multiple of the sum of rated output capacities of the started compressors. Triggering the start of the compressor to be increased. Wherein the first preset multiple is 0.75.
Further, the electronic device determines, from the inactive compressors of the compressor run sequence, to add a compressor, including: the electronic device determines the compressors which are not started in the compressor operation sequence as the compressors to be added according to the priority of short correction operation time.
In some embodiments, the compressor run sequence includes 10 compressors, for example: q (Q) 1 、Q 2 、Q 3 、Q 4 、Q 5 、Q 6 、Q 7 、Q 8 、Q 9 And Q 10 . Wherein Q is 1 For the rated output capacity of the first compressor, Q 1 1.Q (Q) 2 Rated output capacity, Q of the second compressor 2 1.Q (Q) 3 Rated output capacity, Q of third compressor 3 3.Q (Q) 4 Rated output capacity, Q of the fourth compressor 4 1.Q (Q) 5 For the rated output capacity of the fifth compressor, Q 5 3.Q (Q) 6 Rated output capacity, Q, of the sixth compressor 6 3.Q (Q) 7 Rated output capacity of the seventh compressor, Q 7 2.Q (Q) 8 Rated output capacity of eighth compressor, Q 8 2.Q (Q) 9 Rated output capacity, Q, of the ninth compressor 9 1.Q (Q) 10 Rated output capacity, Q, of tenth compressor 10 3. The target demand output capacity is 4, since 4.ltoreq.0.75× (Q 1 +Q 2 +Q 3 +Q 4 ) To meet the target demand output capacity, the first, second, third and fourth compressors in the compressor run sequence are triggered to start. The first target value is a first preset multiple of the sum of rated output capacities of the started compressors, and the first target value is 0.75 x (Q 1 +Q 2 +Q 3 +Q 4 ). The target demand output capacity of the multi-split compressor system is increased to 6.5, and the increased target demand output capacity 6.5 is greater than the first target value 0.75× (Q 1 +Q 2 +Q 3 +Q 4 ). Since 6.5.ltoreq.0.75× (Q 1 +Q 2 +Q 3 +Q 4 +Q 5 ) In order to meet the target demand output capacity, the compressors which are not started in the compressor operation sequence are determined to be the compressors to be added according to the priority of short correction operation time on the basis of starting the original first, second, third and fourth compressors. Since the compressors in the compressor operation sequence are arranged in order of the corrected operation time from short to long, the fifth compressor which is not started in the compressor operation sequence is determined as the compressor to be added.
As shown in conjunction with fig. 3, an embodiment of the present disclosure provides a method for controlling a multi-split compressor system provided with a plurality of compressors, the method comprising:
in step S301, the electronic device obtains the accumulated running time of each compressor.
Step S302, the electronic equipment determines the operation area of each compressor; the operating region is used to characterize the reliability of the compressor when in operation.
In step S303, the electronic device corrects the accumulated running time of each compressor according to each running area, so as to obtain corrected running time.
In step S304, the electronic device determines the compressor to be operated from the compressors according to the corrected operation time.
In step S305, the electronic device triggers the start of the compressor to be operated.
In step S306, the electronic device monitors the target demand output capacity of the multi-split compressor system.
In step S307, the electronic device determines, from the compressors not started in the compressor operation sequence, that the compressor to be added is to be added, when the target demand output capacity of the multi-split compressor system is increased and the increased target demand output capacity is greater than the first target value. The first target value is a first preset multiple of the sum of rated output capacities of the started compressors.
In step S308, the electronic device triggers the start of the compressor to be added.
By adopting the method for controlling the multi-split compressor system, provided by the embodiment of the disclosure, the compressors can be controlled according to the changed target demand output capacity in time by monitoring the target demand output capacity of the multi-split compressor system, so that the rated output capacity of each compressor meets the changed target demand output capacity. Meanwhile, the newly started compressor is the compressor with the shortest accumulated running time in the running sequence of the compressor, so that the running reliability of the started compressor can be effectively ensured. The compressors can be better controlled to rotate, so that the operation reliability of the multi-split system is improved.
Further, after the electronic device triggers the compressor to be operated to start, the method further includes: the electronic equipment monitors the target demand output capacity of the multi-split compressor system. And determining the compressor to be stopped from the started compressors in the compressor operation sequence under the condition that the target demand output capacity of the multi-connected air conditioner compressor system is reduced and the reduced target demand output capacity is smaller than or equal to a second target value. The second target value is a second preset multiple of the sum of rated output capacities of the started compressors. Triggering the compressor to be stopped to stop. Wherein the second preset multiple is 0.25.
Further, the electronic device determines a compressor to be shutdown from the started compressors of the compressor run sequence, comprising: the electronic device determines the started compressor in the compressor operation sequence as the compressor to be stopped according to the priority of short correction operation time.
In some embodiments, the compressor run sequence includes 10 compressors, for example: q (Q) 1 、Q 2 、Q 3 、Q 4 、Q 5 、Q 6 、Q 7 、Q 8 、Q 9 And Q 10 . Wherein Q is 1 For the rated output capacity of the first compressor, Q 1 1.Q (Q) 2 Is the second stationRated output capacity, Q of compressor 2 1.Q (Q) 3 Rated output capacity, Q of third compressor 3 3.Q (Q) 4 Rated output capacity, Q of the fourth compressor 4 1.Q (Q) 5 For the rated output capacity of the fifth compressor, Q 5 3.Q (Q) 6 Rated output capacity, Q, of the sixth compressor 6 3.Q (Q) 7 Rated output capacity of the seventh compressor, Q 7 2.Q (Q) 8 Rated output capacity of eighth compressor, Q 8 2.Q (Q) 9 Rated output capacity, Q, of the ninth compressor 9 1.Q (Q) 10 Rated output capacity, Q, of tenth compressor 10 3. The target demand output capacity is 4, since 4.ltoreq.0.75× (Q 1 +Q 2 +Q 3 +Q 4 ) To meet the target demand output capacity, the first, second, third and fourth compressors in the compressor run sequence are triggered to start. The second target value is a second preset multiple of the sum of rated output capacities of the started compressors, and the second target value is 0.25 x (Q 1 +Q 2 +Q 3 +Q 4 ). The target demand output capacity of the multi-split compressor system is reduced to 3.5, and the reduced target demand output capacity 3.5 is less than a second target value of 0.75× (Q 1 +Q 2 +Q 3 +Q 4 ). Since 3.5.ltoreq.0.75× (Q 1 +Q 2 +Q 35 ) In order to meet the target demand output capacity, on the basis of starting the original first, second, third and fourth compressors, the started compressors in the compressor operation sequence are determined as compressors to be stopped according to the priority of short correction operation time. Since the compressors in the compressor run sequence are arranged in order of the modified run time from short to long, the first compressor in the compressor run sequence that has been started is determined to be the compressor to be shut down.
As shown in conjunction with fig. 4, an embodiment of the present disclosure provides a method for controlling a multi-split compressor system provided with a plurality of compressors, the method comprising:
in step S401, the electronic device obtains the accumulated running time of each compressor.
Step S402, the electronic equipment determines the operation area of each compressor; the operating region is used to characterize the reliability of the compressor when in operation.
In step S403, the electronic device corrects the accumulated running time of each compressor according to each running area, so as to obtain corrected running time.
In step S404, the electronic device determines the compressor to be operated from the compressors according to the corrected operation time.
In step S405, the electronic device triggers the start of the compressor to be operated.
In step S406, the electronic device monitors the target demand output capacity of the multi-split compressor system.
In step S407, the electronic device determines, from the started compressors of the compressor operation sequence, that the compressor is to be stopped, when the target demand output capacity of the multi-split compressor system is reduced and the reduced target demand output capacity is less than or equal to the second target value. The second target value is a second preset multiple of the sum of rated output capacities of the started compressors.
In step S408, the electronic device triggers the compressor to be shut down to shut down.
By adopting the method for controlling the multi-split compressor system, provided by the embodiment of the disclosure, the compressors can be controlled according to the changed target demand output capacity in time by monitoring the target demand output capacity of the multi-split compressor system, so that the rated output capacity of each compressor meets the changed target demand output capacity and simultaneously reduces energy waste. Meanwhile, the compressor to be stopped is the compressor with the shortest accumulated running time in the running sequence of the compressor, so that the running reliability of the started compressor can be effectively ensured. The compressors can be better controlled to rotate, so that the operation reliability of the multi-split system is improved.
Further, after the electronic device triggers the compressor to be operated to start, the method further includes: the electronic equipment monitors each compressor in the multi-split compressor system. And determining the compressor with the corrected running time reaching the preset total duration as the compressor to be replaced. The compressor to be added is determined from the inactive compressors of the compressor run sequence. Triggering the compressor to be increased to start and triggering the compressor to be replaced to stop.
Further, the electronic device determines, from the inactive compressors of the compressor run sequence, to add a compressor, including: the electronic device determines the compressors which are not started in the compressor operation sequence as the compressors to be added according to the priority of short correction operation time.
In some embodiments, the compressor run sequence includes 10 compressors, for example: q (Q) 1 、Q 2 、Q 3 、Q 4 、Q 5 、Q 6 、Q 7 、Q 8 、Q 9 And Q 10 . Wherein Q is 1 For the rated output capacity of the first compressor, Q 1 1.Q (Q) 2 Rated output capacity, Q of the second compressor 2 1.Q (Q) 3 Rated output capacity, Q of third compressor 3 3.Q (Q) 4 Rated output capacity, Q of the fourth compressor 4 1.Q (Q) 5 For the rated output capacity of the fifth compressor, Q 5 3.Q (Q) 6 Rated output capacity, Q, of the sixth compressor 6 3.Q (Q) 7 Rated output capacity of the seventh compressor, Q 7 2.Q (Q) 8 Rated output capacity of eighth compressor, Q 8 2.Q (Q) 9 Rated output capacity, Q, of the ninth compressor 9 1.Q (Q) 10 Rated output capacity, Q, of tenth compressor 10 3. The target demand output capacity is 4, since 4.ltoreq.0.75× (Q 1 +Q 2 +Q 3 +Q 4 ) To meet the target demand output capacity, the first, second, third and fourth compressors in the compressor run sequence are triggered to start. And determining the fourth compressor as a compressor to be replaced under the condition that the corrected running time of the fourth compressor reaches the preset total duration. To meet the purposeAnd (3) determining the output capacity of the target demand, namely determining the compressors which are not started in the compressor operation sequence as the compressors to be added according to the priority of short correction operation time. Since the compressors in the compressor operation sequence are arranged in order of the corrected operation time from short to long, the fifth compressor is determined as the compressor to be added.
As shown in conjunction with fig. 5, an embodiment of the present disclosure provides a method for controlling a multi-split compressor system provided with a plurality of compressors, the method comprising:
In step S501, the electronic device obtains the accumulated running time of each compressor.
Step S502, the electronic equipment determines the operation area of each compressor; the operating region is used to characterize the reliability of the compressor when in operation.
In step S503, the electronic device corrects the accumulated running time of each compressor according to each running area, so as to obtain corrected running time.
In step S504, the electronic device determines, from the compressors, a compressor to be operated according to the corrected operation time.
In step S505, the electronic device triggers the start of the compressor to be operated.
In step S506, the electronic device monitors each compressor in the multi-split compressor system, and determines the compressor with the corrected running time reaching the preset total duration as the compressor to be replaced.
In step S507, the electronic device determines that a compressor is to be added from the non-started compressors of the compressor operation sequence.
In step S508, the electronic device triggers the start of the compressor to be added and triggers the stop of the compressor to be replaced.
By adopting the method for controlling the multi-split compressor system, provided by the embodiment of the disclosure, the accumulated running time of each compressor is respectively obtained. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Meanwhile, the compressor with the corrected running time reaching the preset total duration is determined to be the compressor to be replaced, and the compressor to be added is started. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved.
Referring to fig. 6, fig. 6 is a schematic diagram of a position of an internal machine temperature sensor according to an embodiment of the present disclosure. Comprises a first temperature sensor 1, a second temperature sensor 2, a third temperature sensor 3, a fourth temperature sensor 4 and an air conditioning indoor unit 5. The air conditioner indoor unit 5 is provided with a first temperature sensor 1, and the first temperature sensor 1 is used for detecting indoor environment temperature corresponding to the indoor unit. The second temperature sensor 2 and the third temperature sensor 3 are used for detecting the temperature of a liquid pipe of the internal machine, and the fourth temperature sensor 4 is used for detecting the temperature of an air pipe of the internal machine.
As shown in connection with fig. 7, an embodiment of the present disclosure provides an apparatus for controlling a multi-split compressor system, including a processor (processor) 600 and a memory (memory) 601. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via the bus 603. The communication interface 602 may be used for information transfer. Processor 600 may call logic instructions in memory 601 to perform the method for controlling a multi-split compressor system of the above-described embodiments.
By adopting the device for controlling the multi-split compressor system, provided by the embodiment of the disclosure, the accumulated running time of each compressor is respectively obtained. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved.
Further, the logic instructions in the memory 601 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 601 serves as a computer readable storage medium, and may be used to store a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. Processor 600 executes the program instructions/modules stored in memory 601 to perform functional applications and data processing, i.e., to implement the method for controlling a multi-split compressor system in the above-described embodiments.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory, and may also include a nonvolatile memory.
Optionally, the electronic device includes a computer, a server, or a tablet computer.
By adopting the electronic equipment provided by the embodiment of the disclosure, the accumulated running time of each compressor is respectively acquired. The operating region in which each compressor is located is determined. Since the operating range characterizes the reliability of the compressor during operation. And according to the corrected operation time obtained by respectively correcting the accumulated operation time of each compressor in each operation area, the corrected operation time can show the real loss condition of each compressor. When the compressors to be operated are determined from the compressors according to the corrected operation time, the determined compressors to be operated have higher operation reliability. Therefore, each compressor can be better controlled to perform rotation operation, and the operation reliability of the multi-split system is improved.
The embodiment of the disclosure provides a storage medium storing program instructions which, when run, execute the method for controlling a multi-split compressor system.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for controlling a multi-split compressor system.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more 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 a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, 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 implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure 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 flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (13)
1. A method for controlling a multiple on-line compressor system provided with a plurality of compressors, comprising:
respectively obtaining the accumulated running time of each compressor;
determining an operating area where each compressor is located; the operation area is used for representing the reliability of the compressor in operation;
respectively correcting the accumulated running time of each compressor according to each running area to obtain corrected running time;
determining a compressor to be operated from the compressors according to the corrected operation time;
triggering the compressor to be operated to start.
2. The method of claim 1, wherein determining an operating region in which the compressor is located comprises:
acquiring the evaporating pressure and the condensing pressure of the compressor in the accumulated running time;
searching an operation area where the compressor is located from a preset operation area diagram according to the evaporation pressure and the condensation pressure; the operation area map stores the correspondence between the evaporation pressure, the condensation pressure and the operation area.
3. The method of claim 1, wherein correcting the accumulated operating time of the compressor based on the operating region to obtain a corrected operating time comprises:
Acquiring a time coefficient corresponding to the operation area;
multiplying the time coefficient by the accumulated running time to obtain the corrected running time.
4. The method of claim 1, wherein determining a compressor to be operated from each of the compressors based on the corrected operating time comprises:
acquiring target demand output capacity of a multi-split compressor system;
sequencing the compressors according to the order from short to long of the corrected operation time to obtain a compressor operation sequence;
and determining the compressor to be operated from the compressor operation sequence according to the target required output capacity.
5. The method of claim 4, wherein the multi-split compressor system is provided with a plurality of internal machines; the obtaining the target demand output capacity of the multi-split compressor system comprises the following steps:
acquiring an operation mode corresponding to the multi-split air conditioner compressor system;
under the condition that the operation mode is refrigeration operation, acquiring a first indoor environment temperature correction coefficient, a first outdoor environment temperature correction coefficient, a first internal machine installation characteristic coefficient and a first internal machine capacity of the internal machine in a starting state;
And calculating according to a first preset algorithm by using the first indoor environment temperature correction coefficient, the first outdoor environment temperature correction coefficient, the first internal machine installation characteristic coefficient and the first internal machine capacity to obtain the target required output capacity.
6. The method of claim 4, wherein the multi-split compressor system is provided with a plurality of internal machines; the obtaining the target demand output capacity of the multi-split compressor system comprises the following steps:
acquiring an operation mode corresponding to the multi-split air conditioner compressor system;
under the condition that the operation mode is heating operation, acquiring a second indoor environment temperature correction coefficient, a second outdoor environment temperature correction coefficient, a second internal machine installation characteristic coefficient and a second internal machine capacity of the internal machine in a starting state, and acquiring a third internal machine capacity of the internal machine in a shutdown state or a standby state;
and calculating according to a second preset algorithm by using the second indoor environment temperature correction coefficient, the second outdoor environment temperature correction coefficient, the second internal machine installation characteristic coefficient, the second internal machine capacity and the third internal machine capacity to obtain the target required output capacity.
7. The method of claim 4, wherein determining a compressor to be operated from the compressor operating sequence based on the target demand output capacity comprises:
obtaining rated output capacity of each compressor in the compressor operation sequence;
and calculating according to a third preset algorithm by utilizing the rated output capacity and the target required output capacity, and determining the compressor to be operated from the compressor operation sequence.
8. The method according to any one of claims 1 to 7, further comprising, after triggering the start-up of the compressor to be operated:
monitoring target demand output capacity of the multi-split compressor system;
determining a compressor to be added from the compressors which are not started in the compressor operation sequence under the condition that the target demand output capacity of the multi-split compressor system is increased and the increased target demand output capacity is larger than a first target value; the first target value is a first preset multiple of the sum of rated output capacities of the started compressors;
triggering the compressor to be added to start.
9. The method according to any one of claims 1 to 7, further comprising, after triggering the start-up of the compressor to be operated:
Monitoring target demand output capacity of the multi-split compressor system;
determining a compressor to be stopped from started compressors of the compressor operation sequence under the condition that the target demand output capacity of the multi-split compressor system is reduced and the reduced target demand output capacity is smaller than or equal to a second target value; the second target value is a second preset multiple of the sum of rated output capacities of the started compressors;
triggering the compressor to be stopped to stop.
10. The method according to any one of claims 1 to 7, further comprising, after triggering the start-up of the compressor to be operated:
monitoring each compressor in the multi-split compressor system;
determining the compressor with the corrected running time reaching the preset total duration as a compressor to be replaced;
determining a compressor to be added from the compressors which are not started in the compressor operation sequence;
triggering the compressors to be increased to start and triggering the compressors to be replaced to stop.
11. An apparatus for controlling a multi-split compressor system comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling a multi-split compressor system of any one of claims 1 to 10 when the program instructions are executed.
12. An electronic device comprising the apparatus for controlling a multi-split compressor system of claim 11.
13. A storage medium storing program instructions which, when executed, perform the method for controlling a multi-split compressor system of any one of claims 1 to 10.
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| CN202210833497.XA CN117433112A (en) | 2022-07-15 | 2022-07-15 | Method and device for controlling multi-split air conditioner compressor system, electronic equipment and storage medium |
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