CN115183317A - Compressor frequency regulation and control method and device and multi-connected temperature control system - Google Patents
Compressor frequency regulation and control method and device and multi-connected temperature control system Download PDFInfo
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- 239000007789 gas Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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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- 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
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- 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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Abstract
The application provides a compressor frequency regulation and control method, a compressor frequency regulation and control device and a multi-connected temperature control system. The method comprises the following steps: acquiring the real-time outlet water temperature of the floor heating; acquiring the fluctuation change condition of the real-time outlet water temperature; and adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature. The scheme adjusts the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature, ensures that the water temperature is matched with the frequency interval of the compressor, further avoids the repeated start and stop of the compressor, saves energy and has better comfort.
Description
Technical Field
The application relates to the field of multi-split air conditioners, in particular to a method and a device for regulating and controlling the frequency of a compressor, a computer readable storage medium and a multi-split temperature control system.
Background
Along with the gradual deepening of the concept of comfortable home furnishing and cooling and heating integration and the progress of the air source heat pump technology, the floor heating air conditioner is more and more popular among common consumers. The floor heating air conditioner applying the air source heat pump technology has two purposes, and is used as an air conditioner cold source in summer and a floor heating heat source in winter. Compared with the traditional heating, the heating device is clean and pollution-free, saves more cost, and completes the household cold and warm decoration with least cost. A main air source heat pump of a floor heating air conditioner is a novel energy-saving environment-friendly cooling and heating system, and continuously extracts and converts high-grade heat by means of extracting low-temperature heat energy in low-temperature air, taking electric energy as power, taking a compressor as a heart and taking a refrigerant as blood to provide a heat source for indoor heating. Waste gas, waste residue and the like are not generated in the whole extraction and conversion process, the environment is not polluted and damaged, endless and free low-temperature heat in nature is extracted, and the whole system is stable and excellent in operation condition. Four parts of heat can be obtained by using one part of electric energy and three parts of air energy, the heating energy efficiency ratio is very high, and the cost is very low compared with other heating modes.
Although a general air conditioner is high in heating speed, the problem that the comfort of a user is not enough due to large vertical temperature difference of a room, hot air does not fall to the ground and forced convection of air is caused, and floor heating equipment is uniform in indoor temperature gradient under the double-layer effect of radiant heat and layered temperature, high in operation efficiency and widely popularized nationwide. At present, most of floor heating related equipment is still concentrated in the north, and in the middle and lower reaches of the Yangtze river and wet and cold areas in the south, due to the fact that the heat loss of the enclosure is large, the radiant heating is slow in heating and insufficient in heating, when the water temperature is increased, the energy consumption of an air conditioner is easily increased, and in order to solve the problem, the floor radiation and the 3D combined heating mode of a fan coil are generated. The heating method has the advantages of high indoor temperature response speed, proper average temperature of the floor surface and low power consumption, but simultaneously has the problem of unmatched water temperature and compressor frequency interval, and can cause the repeated start and stop of the compressor to influence energy conservation and comfort.
Disclosure of Invention
The application mainly aims to provide a compressor frequency regulation and control method and device, a computer readable storage medium and a multi-connected temperature control system, so as to solve the problem that the water temperature is not matched with the compressor frequency interval in the floor radiation and fan coil 3D combined heating mode in the prior art.
In order to achieve the above object, according to an aspect of the present application, there is provided a method for regulating and controlling a frequency of a compressor, the method being applied to a multiple temperature control system in which an air conditioner and a floor heating share a single compressor, the method including: acquiring the real-time outlet water temperature of the floor heating; acquiring the fluctuation change condition of the real-time outlet water temperature; and adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature.
Optionally, adjusting the operating frequency of the compressor according to the fluctuation of the real-time outlet water temperature includes: after the air conditioner and the floor heating are simultaneously started, under the condition that the real-time outlet water temperature reaches the temperature set value and the real-time temperature rise rate is larger than a first rate threshold value, the air conditioner is closed without closing the floor heating, and the compressor is controlled to maintain the current frequency operation; otherwise, the air conditioner and the floor heating are not closed, and the compressor is controlled to maintain the current frequency operation.
Optionally, after the air conditioner and the floor heating are simultaneously turned on, under the condition that the real-time outlet water temperature reaches the temperature set value and the real-time temperature rise rate is greater than a first rate threshold, the method further includes the step of turning off the air conditioner and not turning off the floor heating: performing a predetermined step at least once, the predetermined step comprising: determining whether the real-time outlet water temperature reaches a first temperature value and whether the real-time temperature rise rate is greater than a second rate threshold value, wherein the first temperature value is smaller than the temperature set value, and the second rate threshold value is smaller than the first rate threshold value; when the real-time outlet water temperature reaches the first temperature value and the real-time temperature rise rate is greater than a second rate threshold, reducing the current operating frequency of the compressor until the real-time temperature rise rate is less than the second rate threshold; otherwise, controlling the compressor to maintain the current frequency operation.
Optionally, before the air conditioner and the floor heating are turned on simultaneously, the method further includes: starting the air conditioner, and setting the temperature of the air conditioner to be a second temperature value; controlling the compressor to turn on at a first frequency; determining whether a water pump is on, and in the event the water pump is on, adjusting a frequency of the compressor.
Optionally, determining whether a water pump is on, and in the event that the water pump is on, adjusting the frequency of the compressor comprises: opening an electronic expansion valve at a ground heating end, and acquiring the real-time outlet water temperature of the ground heating; controlling the compressor to maintain the first frequency to operate and start the floor heating under the condition that the real-time outlet water temperature is smaller than a temperature threshold value; otherwise, reducing the frequency of the compressor from the first frequency to a second frequency, and turning on the floor heating, wherein the first frequency is greater than the second frequency.
Optionally, acquiring a fluctuation situation of the real-time outlet water temperature, including: after determining that only the floor heating is turned on and the air conditioner is not turned on, controlling the compressor to be turned on at a third frequency; acquiring real-time outlet water temperature variation after the real-time outlet water temperature reaches the temperature set value and is maintained for a preset time period; adjusting the operating frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature, and the method further comprises the following steps: reducing the frequency of the compressor under the condition that the real-time outlet water temperature variation is within a preset range; otherwise, controlling the compressor to maintain the third frequency to operate until the real-time outlet water temperature variation is within the preset range.
Optionally, in the process of reducing the frequency of the compressor when the real-time outlet water temperature variation is within a predetermined range, the method further includes: determining whether the real-time outlet water temperature variation is within the preset range in real time; gradually reducing the frequency of the compressor to the lowest frequency under the condition that the real-time outlet water temperature variation is within the preset range; otherwise, controlling the compressor to maintain the current frequency operation until the real-time outlet water temperature variation is within the preset range.
Optionally, the method further comprises: and controlling the multi-connected temperature control system to operate in a heating mode.
According to another aspect of the application, a compressor frequency regulation and control device is provided, the device is applied to many temperature control systems that ally oneself with, the compressor of air conditioner and floor heating sharing among the many temperature control systems that ally oneself with includes: the first acquisition unit is used for acquiring the real-time outlet water temperature of the floor heating; the second acquisition unit is used for acquiring the fluctuation situation of the real-time outlet water temperature; and the adjusting unit is used for adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature.
According to an aspect of the present application, there is provided a computer-readable storage medium comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform any of the methods.
According to an aspect of the present application, there is provided a multiple temperature control system, including: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the compressor frequency regulation methods.
By applying the technical scheme, after the air conditioner and the floor heating are simultaneously started, the real-time water outlet temperature of the floor heating is obtained, the temperature set value is obtained, the real-time water outlet temperature reaches the temperature set value, and the real-time temperature rise rate is greater than the first rate threshold value, the air conditioner is closed, the floor heating is not closed, the frequency of the compressor is reduced, otherwise, the air conditioner and the floor heating are not closed, the compressor is controlled to maintain the current frequency to operate, the frequency of the compressor is adjusted according to the real-time water outlet temperature and the real-time temperature rise rate, the matching between the water temperature and the frequency interval of the compressor is guaranteed, the repeated starting and stopping of the compressor is further avoided, energy is saved, and the comfort is better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 illustrates a flow chart of a compressor frequency regulation method according to an embodiment of the present application;
fig. 2 illustrates a schematic diagram of a multi-split architecture according to an embodiment of the present application;
FIG. 3 shows a schematic diagram of a compressor frequency regulation device according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a control of a compressor in a first mode of a multi-split operation according to an embodiment of the present application;
fig. 5 is a flowchart illustrating a control of a compressor in a second mode and a third mode of a multi-split operation according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
1. a compressor; 2. an oil separator; 3. a first four-way valve; 4. a second four-way valve; 5. a condenser; 6. a condensing fan; 7. a heating electronic expansion valve; 8. a subcooler; 9. a subcooler electronic expansion valve; 10. a gas-liquid separator; 11. an oil return electronic expansion valve; 12. a high-pressure gas pipe valve; 13. an air pipe valve; 14. a liquid pipe valve; 15. a hot water generator; 16. a plate heat exchanger; 17. a generator electronic expansion valve; 18. a first indoor unit; 19. a second indoor unit; 20. a third indoor unit; 21. a first indoor unit electronic expansion valve; 22. a second indoor unit electronic expansion valve; 23. a third indoor unit electronic expansion valve; 24. a first indoor unit fan; 25. a second indoor unit fan; 26. a third indoor unit fan; 27. a generator water inlet temperature sensing bulb; 28. a generator water outlet temperature sensing bulb; 29. the generator is electrically heated; 30. an expansion tank; 31. a water flow switch; 32. and (4) a water pump.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As introduced in the background art, in the prior art, the water temperature is not matched with the compressor frequency interval in the heating mode of combined floor radiation and fan coil 3D, and the problem that the water temperature is not matched with the compressor frequency interval in the heating mode of combined floor radiation and fan coil 3D is not solved.
According to an embodiment of the present application, a compressor frequency regulation method is provided.
Fig. 1 is a flow chart of a compressor frequency regulation method according to an embodiment of the present application. The method is applied to a multi-connected temperature control system, wherein an air conditioner and a floor heating system in the multi-connected temperature control system share one compressor, and as shown in fig. 1, the method comprises the following steps:
step S101, acquiring the real-time outlet water temperature of the floor heating;
step S102, acquiring the fluctuation change condition of the real-time outlet water temperature;
and step S103, adjusting the running frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature.
According to the scheme, the fluctuation change condition of the real-time outlet water temperature is obtained by obtaining the real-time outlet water temperature of the floor heating, and the running frequency of the compressor is adjusted according to the fluctuation change condition of the real-time outlet water temperature. The operation frequency of the compressor is adjusted according to the fluctuation change condition of the real-time outlet water temperature, the matching between the water temperature and the frequency range of the compressor is ensured, the repeated start and stop of the compressor is further avoided, and the compressor is energy-saving and has better comfort.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
In an embodiment of the present application, adjusting the operating frequency of the compressor according to the fluctuation of the real-time outlet water temperature includes: after the air conditioner and the floor heating are started simultaneously, under the condition that the real-time outlet water temperature reaches the temperature set value and the real-time temperature rise rate is larger than a first rate threshold value, the air conditioner is closed without closing the floor heating, and the compressor is controlled to maintain the current frequency operation; otherwise, the air conditioner and the floor heating are not closed, and the compressor is controlled to maintain the current frequency operation.
Otherwise, the conditions that the air conditioner and the floor heating are not closed and the compressor is controlled to maintain the current frequency operation include the following situations:
the first situation is as follows: the real-time outlet water temperature reaches the temperature set value, and the real-time temperature rise rate is smaller than or equal to a first rate threshold value;
case two: the real-time outlet water temperature does not reach the temperature set value, and the real-time temperature rise rate is greater than a first rate threshold value;
a third situation: the real-time outlet water temperature does not reach the temperature set value, and the real-time temperature rise rate is smaller than or equal to the first rate threshold value.
Fig. 2 shows a schematic diagram of a multi-split air conditioner structure according to an embodiment of the present application, where a structure in fig. 2 is used, a real-time outlet water temperature of a floor heating system is a temperature sensed by a generator outlet water temperature sensing bulb 28, and the structure in fig. 2 includes a compressor 1, an oil separator 2, a first four-way valve 3, a second four-way valve 4, a condenser 5, a condensing fan 6, a heating electronic expansion valve 7, a subcooler 8, a subcooler electronic expansion valve 9, a gas-liquid separator 10, an oil return electronic expansion valve 11, a high-pressure gas pipe valve 12, a gas pipe valve 13, a liquid pipe valve 14, a hot water generator 15, a plate heat exchanger 16, a generator electronic expansion valve 17, a first indoor unit 18, a second indoor unit 19, a third indoor unit 20, a first indoor unit electronic expansion valve 21, a second indoor unit electronic expansion valve 22, a third indoor unit electronic expansion valve 23, a first fan 24, a second indoor unit 25, a third indoor unit fan 26, a generator inlet water temperature sensing bulb 27, a generator outlet water temperature sensing bulb 28, a generator electrical heating 29, an expansion tank 30, a water flow switch 31, and a water pump 32. The specific connection relationship is shown in fig. 2. The air conditioner and the floor heating share one compressor 1. The temperature regulation is achieved by regulating the frequency of the compressor 1.
In this embodiment, after opening air conditioner and ground heating simultaneously, reach above-mentioned temperature setting value at above-mentioned real-time leaving water temperature, and under the condition that real-time temperature rise rate is greater than first rate threshold value, close above-mentioned air conditioner and do not close above-mentioned ground heating, and control the compressor and keep current frequency operation, otherwise, do not close above-mentioned air conditioner and above-mentioned ground heating and control above-mentioned compressor and keep current frequency operation, this scheme is according to leaving water temperature and the frequency of real-time temperature rise rate adjustment compressor of real-time, guaranteed that the water temperature matches with compressor frequency interval, further avoided the repeated start-stop of compressor, energy-conservation and travelling comfort are better.
In an embodiment of the present application, after opening above-mentioned air conditioner and above-mentioned ground heating simultaneously, reach above-mentioned temperature setting value at above-mentioned real-time leaving water temperature, and under the condition that real-time temperature rise rate is greater than first rate threshold, close above-mentioned air conditioner and not close before above-mentioned ground heating, above-mentioned method still includes: performing a predetermined step at least once, the predetermined step comprising: determining whether the real-time outlet water temperature reaches a first temperature value and whether the real-time temperature rise rate is greater than a second rate threshold value, wherein the first temperature value is smaller than the temperature set value, and the second rate threshold value is smaller than the first rate threshold value; when the real-time outlet water temperature reaches the first temperature value and the real-time temperature rise rate is greater than a second rate threshold, reducing the current operating frequency of the compressor until the real-time temperature rise rate is less than the second rate threshold; otherwise, controlling the compressor to maintain the current frequency operation. Before the current outlet water temperature reaches the temperature set value, whether the real-time outlet water temperature reaches a first temperature value or not is judged for many times, and whether the real-time temperature rise rate is greater than a second rate threshold value or not can be judged for two times, three times, four times and the like, so that the compressor frequency can be regulated and controlled gradually and accurately through multiple judgment processes.
In an embodiment of the present application, before opening the above air conditioner and the above floor heating at the same time, the above method further includes: starting the air conditioner, and setting the temperature of the air conditioner to be a second temperature value; controlling the compressor to start at a first frequency; determining whether the water pump is turned on, and in case the water pump is turned on, adjusting the frequency of the compressor. Namely, under a condition, before opening above-mentioned air conditioner and above-mentioned warm ground simultaneously mainly before opening the air conditioner, then open warm ground again. Under this kind of condition, need remove the frequency of adjusting the compressor according to the opening condition of water pump before opening ground warms up, avoid the direct excess temperature of high frequency start.
In one embodiment of the present application, determining whether a water pump is turned on, and adjusting a frequency of the compressor when the water pump is turned on includes: opening an electronic expansion valve at a ground heating end, and acquiring the real-time outlet water temperature of the ground heating; controlling the compressor to maintain the first frequency to operate and start the floor heating under the condition that the real-time outlet water temperature is smaller than a temperature threshold value; otherwise, the frequency of the compressor is reduced from the first frequency to a second frequency, and the floor heating is started, wherein the first frequency is greater than the second frequency. Wherein, the real-time outlet water temperature of the floor heating is obtained under the condition that the water pump is opened but the floor heating is not opened, when the air conditioner is opened but the floor heating is not opened, the water pump of the system is in a closed state, if the water pump is opened at the moment, the minimum steps are left under the condition that the electronic expansion valve at the floor heating end is closed, the phenomenon that the floor heating is heated after the running time is long is achieved, the floor heating water outlet temperature is high, the starting frequency of the floor heating needs to be controlled, and high-frequency starting is avoided from being directly over-heated, so that the floor heating end electronic expansion valve is opened, the frequency of the compressor is regulated and controlled according to the real-time water outlet temperature of the floor heating, and the high-frequency starting is avoided from being directly over-heated.
In an embodiment of the application, obtaining the fluctuation of the real-time outlet water temperature includes: after the floor heating is only started and the air conditioner is not started, controlling the compressor to be started at a third frequency; acquiring real-time outlet water temperature variation after the real-time outlet water temperature reaches the temperature set value and is maintained for a preset time period;
adjusting the operating frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature, and further comprising: reducing the frequency of the compressor under the condition that the real-time outlet water temperature variation is within a preset range; otherwise, controlling the compressor to maintain the operation of the third frequency until the real-time outlet water temperature variation is within the preset range. The third frequency is a higher frequency, namely, under the condition that only the floor heating is started, the compressor is started at the higher frequency, then the real-time outlet water temperature reaches the temperature set value, and after the compressor can stably run for a period of time, the frequency of the compressor is adjusted by judging the magnitude of the real-time outlet water temperature variation, and then the accurate control of the water temperature is realized.
In an embodiment of the application, in the process of reducing the frequency of the compressor when the real-time outlet water temperature variation is within a predetermined range, the method further includes: determining whether the real-time outlet water temperature variation is within the preset range in real time; gradually reducing the frequency of the compressor to the lowest frequency under the condition that the real-time outlet water temperature variation is within the preset range; otherwise, controlling the compressor to maintain the current frequency operation until the real-time outlet water temperature variation is within the preset range. In the process of frequency reduction, whether the real-time outlet water temperature variation is within the preset range or not is continuously judged, then the frequency of the compressor is continuously adjusted according to the real-time outlet water temperature variation, and accurate control over the water temperature is further achieved.
In a specific embodiment of the present application, the method further includes: and controlling the multi-connected temperature control system to operate in a heating mode. That is, the method of regulating a compressor of the present application is applicable to the heating mode.
The embodiment of the present application further provides a compressor frequency regulation and control device, and it should be noted that the compressor frequency regulation and control device of the embodiment of the present application may be used to execute the method for regulating and controlling the compressor frequency provided by the embodiment of the present application. The following describes a frequency control device for a compressor provided in an embodiment of the present application.
Fig. 3 is a schematic diagram of a compressor frequency regulation device according to an embodiment of the present application. Above-mentioned device is applied to temperature control system that ally oneself with more, and the aforesaid air conditioner that allies oneself with among the temperature control system that ally oneself with warms up a compressor of sharing, as shown in fig. 3, the device includes:
the first obtaining unit 100 is configured to obtain a real-time outlet water temperature of the floor heating;
a second obtaining unit 200, configured to obtain a fluctuation situation of the real-time outlet water temperature;
and an adjusting unit 300, configured to adjust an operating frequency of the compressor according to a fluctuation condition of the real-time outlet water temperature.
In the scheme, the first acquisition unit acquires the real-time outlet water temperature of the floor heating, the second acquisition unit acquires the fluctuation situation of the real-time outlet water temperature, and the adjusting unit adjusts the operating frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature. The operation frequency of the compressor is adjusted according to the fluctuation change condition of the real-time outlet water temperature, the matching between the water temperature and the frequency range of the compressor is guaranteed, the repeated start and stop of the compressor are further avoided, energy is saved, and the comfort is good.
In one embodiment of the application, the adjusting unit comprises a first control module and a second control module, the first control module is used for closing the air conditioner and not closing the floor heating under the condition that the real-time outlet water temperature reaches the temperature set value and the real-time temperature rise rate is greater than a first rate threshold value after the air conditioner and the floor heating are simultaneously opened, and controlling the compressor to maintain the current frequency to operate; and the second control module is used for not closing the air conditioner and the floor heating and controlling the compressor to maintain the current frequency operation if the current frequency operation is not required. In this embodiment, after opening air conditioner and ground heating simultaneously, reach above-mentioned temperature setting value at above-mentioned real-time leaving water temperature, and under the condition that real-time temperature rise rate is greater than first rate threshold, close above-mentioned air conditioner and do not close above-mentioned ground heating, and control compressor keeps current frequency operation, otherwise, do not close above-mentioned air conditioner and above-mentioned ground heating and control above-mentioned compressor and keep current frequency operation, the frequency of compressor is adjusted according to real-time leaving water temperature and real-time temperature rise rate to this scheme, guaranteed that the water temperature matches with compressor frequency interval, further avoided the repeated start-stop of compressor, energy-conservation and travelling comfort are better.
In an embodiment of the present application, the above device further includes an execution unit, the execution unit is configured to, after simultaneously opening the above air conditioner and the above floor heating, execute a predetermined step at least once before the above air conditioner is closed and the above floor heating is not closed when the above real-time outlet water temperature reaches the above temperature setting value and the real-time temperature rise rate is greater than the first rate threshold, where the above predetermined step includes: determining whether the real-time outlet water temperature reaches a first temperature value and whether the real-time temperature rise rate is greater than a second rate threshold value, wherein the first temperature value is smaller than the temperature set value, and the second rate threshold value is smaller than the first rate threshold value; when the real-time outlet water temperature reaches the first temperature value and the real-time temperature rise rate is greater than a second rate threshold, reducing the current running frequency of the compressor until the real-time temperature rise rate is less than the second rate threshold; otherwise, controlling the compressor to maintain the current frequency operation. Before the current outlet water temperature reaches the temperature set value, whether the real-time outlet water temperature reaches a first temperature value or not is judged for many times, and whether the real-time temperature rise rate is greater than a second rate threshold value or not can be judged for two times, three times, four times and the like, so that the compressor frequency can be regulated and controlled gradually and accurately through multiple judgment processes.
In an embodiment of the application, the device further includes an opening unit, a first control unit, and a first determination unit, where the opening unit is configured to open the air conditioner and set the temperature of the air conditioner to a second temperature value before simultaneously opening the air conditioner and the floor heating; the first control unit is used for controlling the compressor to be started at a first frequency; the first determining unit is used for determining whether the water pump is started or not, and adjusting the frequency of the compressor under the condition that the water pump is started. Namely, under one condition, the air conditioner is mainly started before the air conditioner and the floor heating are started simultaneously, and then the floor heating is started. Under this kind of condition, need remove the frequency of adjusting the compressor according to the opening condition of water pump before opening ground warms up, avoid the direct excess temperature of high frequency start.
In an embodiment of the application, the first determining unit comprises an opening module, a third control module and a fourth control module, wherein the opening module is used for opening an electronic expansion valve at a floor heating end and acquiring the real-time outlet water temperature of the floor heating; the third control module is used for controlling the compressor to maintain the first frequency to operate and start the floor heating under the condition that the real-time outlet water temperature is smaller than a temperature threshold value; and the fourth control module is used for reducing the frequency of the compressor from the first frequency to a second frequency and starting the floor heating, wherein the first frequency is greater than the second frequency. Wherein, the real-time outlet water temperature of the floor heating is obtained under the condition that the water pump is opened but the floor heating is not opened, when the air conditioner is opened but the floor heating is not opened, the water pump of the system is in a closed state, if the water pump is opened at the moment, the minimum steps are left under the condition that the electronic expansion valve at the floor heating end is closed, the phenomenon that the floor heating is heated after the running time is long is achieved, the floor heating water outlet temperature is high, the starting frequency of the floor heating needs to be controlled, and high-frequency starting is avoided from being directly over-heated, so that the floor heating end electronic expansion valve is opened, the frequency of the compressor is regulated and controlled according to the real-time water outlet temperature of the floor heating, and the high-frequency starting is avoided from being directly over-heated.
In an embodiment of the application, the first obtaining unit includes a fifth control module and an obtaining module, and the fifth control module is configured to control the compressor to be turned on at a third frequency after determining that only the floor heater is turned on and the air conditioner is not turned on; the acquisition module is used for acquiring real-time outlet water temperature variation when the real-time outlet water temperature reaches the temperature set value and is maintained for a preset time period; the adjusting unit comprises a sixth control module and a seventh control module, and the sixth control module is used for reducing the frequency of the compressor under the condition that the real-time outlet water temperature variation is within a preset range; and the seventh control module is used for controlling the compressor to maintain the third frequency to operate until the real-time outlet water temperature variation is within the preset range. The third frequency is a higher frequency, namely, under the condition that only the floor heating is started, the compressor is started at the higher frequency, then the real-time outlet water temperature reaches the temperature set value, and after the compressor can stably run for a period of time, the frequency of the compressor is adjusted by judging the magnitude of the real-time outlet water temperature variation, and then the accurate control of the water temperature is realized.
In an embodiment of the present application, the apparatus further includes a second determining unit, a second control unit, and a third control unit, where the second determining unit is configured to determine whether the real-time outlet water temperature variation is within a predetermined range in real time when the real-time outlet water temperature variation is within the predetermined range and in a process of reducing the frequency of the compressor; the second control unit is used for gradually reducing the frequency of the compressor to the lowest frequency under the condition that the real-time outlet water temperature variation is within the preset range; and the third control unit is used for controlling the compressor to maintain the current frequency operation until the real-time outlet water temperature variation is within the preset range if the real-time outlet water temperature variation is not within the preset range. In the process of reducing the frequency, whether the real-time outlet water temperature variation is within the preset range is continuously judged, and then the frequency of the compressor is continuously adjusted according to the magnitude of the real-time outlet water temperature variation, so that the accurate control of the water temperature is further realized.
In an embodiment of the application, the apparatus further includes a fourth control unit, and the fourth control unit is configured to control the multi-connected temperature control system to operate in the heating mode. That is, the scheme of the present application for regulating the compressor is applicable to the heating mode.
The compressor frequency regulating device comprises a processor and a memory, wherein the first acquiring unit, the second acquiring unit, the adjusting unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, the matching between the water temperature and the frequency range of the compressor is ensured by adjusting the kernel parameters, the repeated start and stop of the compressor is further avoided, the energy is saved, and the comfort is better.
The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
The embodiment of the invention provides a computer-readable storage medium, which comprises a stored program, wherein when the program runs, equipment where the computer-readable storage medium is located is controlled to execute the compressor frequency regulation and control method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program is used for executing the compressor frequency regulation and control method during running.
The embodiment of the invention provides a multi-connected temperature control system, which comprises: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the above-described compressor frequency regulation methods.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, at least the following steps are realized:
step S101, acquiring the real-time outlet water temperature of the floor heating;
step S102, acquiring the fluctuation change condition of the real-time outlet water temperature;
and step S103, adjusting the running frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:
step S101, acquiring the real-time outlet water temperature of the floor heating;
step S102, acquiring the fluctuation change condition of the real-time outlet water temperature;
and step S103, adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions and technical effects of the present application will be described below with reference to specific embodiments.
Examples
The present embodiment relates to a specific scheme for regulating the frequency of the compressor. The scheme mainly relates to the scheme for regulating and controlling the frequency of the compressor in three modes of multi-split operation.
Fig. 4 is a flowchart illustrating a method for controlling a compressor in a first mode of a multi-split air conditioner according to an embodiment of the present application, as shown in fig. 4, including the steps of:
step 1: starting a multi-connected machine heating mode;
and 2, step: calculating the load according to the current external environment temperature;
and step 3: under the condition that the external environment temperature is in a first temperature range, controlling the multi-split air conditioner to enter a first mode, namely a single floor heating mode, setting the water temperature to be X ℃ and setting the air conditioner to be 30 ℃;
and 4, step 4: starting up the compressor at a high frequency AHZ, namely starting up the compressor at a high frequency;
and 5: the water temperature rises rapidly to reach a set water temperature value X ℃;
step 6: after stable operation is carried out for 10min, judging whether the water temperature change value is +/-0.5 ℃, if not, maintaining the frequency operation until the water temperature is stable; if yes, entering step 7;
and 7: judging whether the water temperature change value is +/-0.5 ℃ during the frequency reduction at the rate of BHZ/min, if not, maintaining the frequency operation until the water temperature is stable; if yes, entering step 8;
and 8: and after the frequency is operated to the lowest frequency, the frequency is kept to stably operate.
The setting time is 10min, the stable range of the water temperature change value is +/-0.5 ℃, and the matching of the temperature and the frequency interval of the compressor can be further ensured.
Fig. 5 is a flowchart illustrating a control of a compressor in a second mode and a third mode of a multi-split operation according to an embodiment of the present application.
As shown in fig. 5, in the second mode, the following steps are included:
step 1: starting a multi-connected machine heating mode;
step 2: calculating the load according to the current external environment temperature;
and step 3: under the condition that the external environment temperature is in a second temperature interval, controlling the multi-split air conditioner to enter a second mode, namely, a warm-up mode after an air conditioner is started, wherein the air conditioner is set to be started at 30 ℃, and the second temperature interval is lower than the first temperature interval;
and 4, step 4: starting up the compressor at a high frequency AHZ, namely starting up the compressor at a high frequency;
and 5: judging whether a water pump of the system is started, if so, starting an electronic expansion valve at the floor heating end, and entering step 6 if the temperature of the floor heating outlet water needs to be measured, otherwise, not influencing the normal operation of the system;
step 6: detecting the temperature T < Y ℃ of the outlet water of the floor heating before the floor heating is started, if so, maintaining the current frequency to start the floor heating, and if not, entering the step 7;
and 7: reducing the frequency E to turn on the floor heating;
and 8: the floor heating and air conditioning system runs at a frequency E;
and step 9: judging whether the water temperature reaches (X-X1) DEG C, and if so, reducing the frequency by CHZ for 10min until the water temperature rises to V1 (DEG C/min), and if not, maintaining the current frequency to run; continuously detecting the water temperature after the CHZ operation is carried out for 10min by reducing the frequency, judging whether the water temperature reaches (X-X2) DEG C, and judging whether the water temperature rises to be higher than V2 (DEG C/min), if so, reducing the frequency by DHZ for 10min until the water temperature rises to be lower than V2 (DEG C/min), and if not, maintaining the current frequency operation; and after the frequency is reduced by DHZ and the operation is carried out for 10min, continuously detecting the water temperature, judging whether the water temperature reaches X ℃, and judging whether the water temperature rises at a speed of more than V3 (DEG C/min), if so, closing the air conditioner, and maintaining the floor heating operation, and if not, maintaining the current frequency operation.
Wherein X1> X2, V1> V2> V3.
According to the method, whether the water temperature reaches the preset value and the water temperature rising rate is judged for multiple times, so that the frequency of the compressor can be accurately regulated and controlled.
As shown in fig. 5, in the third mode, the following steps are included:
step 1: starting a multi-connected machine heating mode;
step 2: calculating the load according to the current external environment temperature;
and step 3: under the condition that the external environment temperature is in a third temperature interval, controlling the multi-split air conditioner to enter a third mode, namely a direct start mode of a floor heating and air conditioning, setting the water temperature to be X ℃, wherein the third temperature interval is lower than the second temperature interval;
and 4, step 4: starting up the compressor at a high frequency AHZ, namely starting up the compressor at a high frequency;
and 5: the system demand capacity is dispersed, the floor heating distribution load demand is less, and the water temperature gradually rises but is slow;
step 6: judging whether the water temperature reaches (X-X1) DEG C, and if so, reducing the frequency by CHZ for 10min until the water temperature rises to V1 (DEG C/min), and if not, maintaining the current frequency to run; continuously detecting the water temperature after the CHZ operation is carried out for 10min by reducing the frequency, judging whether the water temperature reaches (X-X2) DEG C, and judging whether the water temperature rises to be higher than V2 (DEG C/min), if so, reducing the frequency by DHZ for 10min until the water temperature rises to be lower than V2 (DEG C/min), and if not, maintaining the current frequency operation; and after the frequency is reduced by DHZ and the operation is carried out for 10min, continuously detecting the water temperature, judging whether the water temperature reaches X ℃, and judging whether the water temperature rises at a speed of more than V3 (DEG C/min), if so, closing the air conditioner, and maintaining the floor heating operation, and if not, maintaining the current frequency operation.
Wherein X1> X2, V1> V2> V3.
According to the method, whether the water temperature reaches the preset value and the water temperature rising rate is judged for multiple times, so that the frequency of the compressor is accurately regulated and controlled.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) According to the compressor frequency regulation and control method, the fluctuation change condition of the real-time outlet water temperature is obtained by obtaining the real-time outlet water temperature of the floor heating, and the running frequency of the compressor is regulated according to the fluctuation change condition of the real-time outlet water temperature. The operation frequency of the compressor is adjusted according to the fluctuation change condition of the real-time outlet water temperature, the matching between the water temperature and the frequency range of the compressor is guaranteed, the repeated start and stop of the compressor are further avoided, energy is saved, and the comfort is good.
2) The utility model provides a compressor frequency regulation and control device, the first real-time leaving water temperature who acquires the ground heating that acquires of unit, the second acquires the fluctuation situation of unit acquisition real-time leaving water temperature, and the regulating element adjusts the operating frequency of above-mentioned compressor according to the fluctuation situation of real-time leaving water temperature. The operation frequency of the compressor is adjusted according to the fluctuation change condition of the real-time outlet water temperature, the matching between the water temperature and the frequency range of the compressor is guaranteed, the repeated start and stop of the compressor are further avoided, energy is saved, and the comfort is good.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. A method for regulating and controlling the frequency of a compressor is applied to a multi-connected temperature control system, and an air conditioner and a floor heating in the multi-connected temperature control system share one compressor, and is characterized by comprising the following steps:
acquiring the real-time outlet water temperature of the floor heating;
acquiring the fluctuation change condition of the real-time outlet water temperature;
and adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature.
2. The method of claim 1, wherein adjusting the operating frequency of the compressor based on fluctuations in the real-time leaving water temperature comprises:
after the air conditioner and the floor heating are simultaneously started, under the condition that the real-time outlet water temperature reaches a temperature set value and the real-time temperature rise rate is larger than a first rate threshold value, the air conditioner is closed without closing the floor heating, and the compressor is controlled to maintain the current frequency operation;
otherwise, the air conditioner and the floor heating are not closed, and the compressor is controlled to maintain the current frequency operation.
3. The method of claim 2, wherein after simultaneously turning on the air conditioner and the floor heating, and in a case where the real-time leaving water temperature reaches the temperature set value and a real-time temperature rise rate is greater than a first rate threshold, before turning off the air conditioner and not turning off the floor heating, the method further comprises:
performing a predetermined step at least once, the predetermined step comprising:
determining whether the real-time outlet water temperature reaches a first temperature value and whether the real-time temperature rise rate is greater than a second rate threshold value, wherein the first temperature value is smaller than the temperature set value, and the second rate threshold value is smaller than the first rate threshold value;
when the real-time outlet water temperature reaches the first temperature value and the real-time temperature rise rate is greater than a second rate threshold, reducing the current operating frequency of the compressor until the real-time temperature rise rate is less than the second rate threshold;
otherwise, controlling the compressor to maintain the current frequency operation.
4. The method of claim 2, wherein prior to simultaneously turning on the air conditioner and the floor heating, the method further comprises:
starting the air conditioner, and setting the temperature of the air conditioner to be a second temperature value;
controlling the compressor to turn on at a first frequency;
determining whether a water pump is on, and in the event the water pump is on, adjusting a frequency of the compressor.
5. The method of claim 4, wherein determining whether a water pump is on and, with the water pump on, adjusting the frequency of the compressor comprises:
opening an electronic expansion valve at a floor heating end, and acquiring the real-time outlet water temperature of the floor heating;
controlling the compressor to maintain the first frequency to operate and start the floor heating under the condition that the real-time outlet water temperature is smaller than a temperature threshold value;
otherwise, reducing the frequency of the compressor from the first frequency to a second frequency, and turning on the floor heating, wherein the first frequency is greater than the second frequency.
6. The method of claim 1,
acquiring the fluctuation change condition of the real-time outlet water temperature, comprising the following steps:
after the floor heating is only started and the air conditioner is not started, controlling the compressor to be started at a third frequency;
acquiring real-time outlet water temperature variation after the real-time outlet water temperature reaches a temperature set value and is maintained for a preset time period;
adjusting the operating frequency of the compressor according to the fluctuation situation of the real-time outlet water temperature, and the method further comprises the following steps:
reducing the frequency of the compressor under the condition that the real-time outlet water temperature variation is within a preset range;
otherwise, controlling the compressor to maintain the third frequency to operate until the real-time outlet water temperature variation is within the preset range.
7. The method of claim 6, wherein in reducing the frequency of the compressor if the real-time leaving water temperature delta is within a predetermined range, the method further comprises:
determining whether the real-time outlet water temperature variation is within the preset range in real time;
gradually reducing the frequency of the compressor to the lowest frequency under the condition that the real-time outlet water temperature variation is within the preset range;
otherwise, controlling the compressor to maintain the current frequency operation until the real-time outlet water temperature variation is within the preset range.
8. The method according to any one of claims 1 to 7, further comprising:
and controlling the multi-connected temperature control system to operate in a heating mode.
9. The utility model provides a compressor frequency regulation and control device, the device is applied to and allies oneself with temperature control system more, the air conditioner among the temperature control system that allies oneself with warms up a compressor of sharing more, its characterized in that includes:
the first acquisition unit is used for acquiring the real-time outlet water temperature of the floor heating;
the second acquisition unit is used for acquiring the fluctuation situation of the real-time outlet water temperature;
and the adjusting unit is used for adjusting the running frequency of the compressor according to the fluctuation change condition of the real-time outlet water temperature.
10. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of any one of claims 1 to 8.
11. A multiple temperature control system, comprising: one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing the compressor frequency regulation method of any of claims 1-8.
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| CN116971974A (en) * | 2023-07-25 | 2023-10-31 | 湖南万盟环境科技有限公司 | Self-adaptive regulation and control method and system for variable-working-condition reciprocating compressor |
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