Compressor control method and apparatus, device and storage medium

Abstract

A compressor control method and apparatus, a device and a storage medium. The control method comprises: acquiring a demand of an evaporator for refrigeration; on the basis of the demand for refrigeration, determining a first compressor rotating speed; acquiring evaporation temperature error data of the evaporator; on the basis of the evaporation temperature error data, determining a second compressor rotating speed; according to the first compressor rotating speed and the second compressor rotating speed, calculating a target compressor rotating speed; and, on the basis of the target compressor rotating speed, controlling a compressor. The control method enables rotating speeds of compressors to be closer to rotating speeds of actual refrigeration requirements and effectively reduces errors, allowing air conditioning systems to exert the optimal efficiency.

Description

Compressor control method, device, equipment and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 22, 2024, with application number 202410099534.8 and application name “A control method, device, equipment and storage medium for a compressor”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of air-conditioning equipment, and in particular to a control method, device, equipment and storage medium for a compressor. Background Art

[0003] In automotive systems, air conditioning is a major energy consumer, especially in electric vehicles, where limited battery capacity limits the vehicle's range. With the increasing popularity of new energy vehicles, making air conditioning more energy-efficient to extend vehicle range is a pressing issue for the industry.

[0004] Specifically, in electric vehicle air conditioning systems, the system controls the refrigerant flow rate by adjusting the compressor speed. The higher the compressor speed, the faster the refrigerant circulates within the system, and the greater the cooling capacity. In actual operating environments, the compressor's operating conditions vary widely due to various factors (such as temperature and air pressure). Therefore, rationally controlling the compressor speed to meet actual cooling needs and avoid unnecessary energy loss is key to achieving energy conservation.

[0005] The control method for the air-conditioning compressor speed in the prior art does not fully consider the various factors that affect the compressor speed, and the control error is large. Summary of the Invention

[0006] In view of the above problems, a method, device, apparatus and storage medium for controlling a compressor are proposed to overcome or at least partially solve the above problems, including:

[0007] A method for controlling a compressor, the method comprising:

[0008] Get the cooling demand of the evaporator;

[0009] determining a first compressor speed based on the cooling demand;

[0010] Obtain evaporation temperature error data of the evaporator;

[0011] determining a second compressor speed based on the evaporation temperature error data;

[0012] determining a target compressor speed according to the first compressor speed and the second compressor speed;

[0013] The compressor is controlled based on the target compressor speed.

[0014] Optionally, before the step of obtaining the cooling demand of the evaporator, the method includes:

[0015] Obtaining the air inlet volume of the evaporator;

[0016] Obtaining an enthalpy difference between the evaporator air outlet and the evaporator air inlet;

[0017] The cooling demand of the evaporator is determined according to the inlet air volume and the enthalpy difference.

[0018] Optionally, the step of determining the speed of the first compressor based on the cooling demand includes:

[0019] Obtaining a first correspondence between the cooling demand and the speed of the first compressor;

[0020] The first compressor speed is determined according to the cooling demand and the first corresponding relationship.

[0021] Optionally, the evaporation temperature error data includes a first evaporation temperature error at a current moment and a second evaporation temperature error at a previous moment, and the step of determining the second compressor speed based on the evaporation temperature error data includes:

[0022] Obtaining a correlation coefficient corresponding to the first evaporation temperature error;

[0023] The second compressor speed is determined according to the first evaporating temperature error, the second evaporating temperature error, and a correlation coefficient corresponding to the first evaporating temperature error.

[0024] Optionally, before the step of obtaining the air inlet volume of the evaporator air inlet, the method further includes:

[0025] Obtaining a second correspondence between the operating voltage of the blower and the air inlet volume of the evaporator;

[0026] Obtaining a target operating voltage of the blower;

[0027] The air intake volume of the evaporator air inlet is determined according to the target operating voltage of the blower and the second corresponding relationship.

[0028] Optionally, before the step of obtaining the evaporation temperature error data of the evaporator, the method further includes:

[0029] Obtain the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator;

[0030] The evaporation temperature error data is determined according to the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator.

[0031] Optionally, the step of determining a target compressor speed according to the first compressor speed and the second compressor speed includes:

[0032] The first compressor speed and the second compressor speed are summed to determine the target compressor speed.

[0033] A control device for a compressor, comprising:

[0034] A cooling capacity acquisition module is used to obtain the cooling demand of the evaporator;

[0035] a first compressor speed determining module, configured to determine a first compressor speed based on the cooling demand;

[0036] An evaporation temperature error data acquisition module is used to acquire evaporation temperature error data of the evaporator;

[0037] a second compressor speed determining module, configured to determine a second compressor speed based on the evaporation temperature error data;

[0038] a target compressor speed determining module, configured to determine a target compressor speed based on the first compressor speed and the second compressor speed;

[0039] The compressor control module is configured to control the compressor based on the target compressor speed.

[0040] An electronic device comprises a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program, when executed by the processor, implements any of the above-mentioned compressor control methods.

[0041] A computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements any of the above-mentioned compressor control methods.

[0042] A computer program is provided, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for controlling a compressor.

[0043] A computer program product, characterized in that it comprises a computer program, which implements any of the above-mentioned compressor control methods when executed by a processor.

[0044] This application obtains the cooling demand of the evaporator, determines the speed of a first compressor based on the cooling demand, obtains evaporation temperature error data of the evaporator, determines the speed of a second compressor based on the evaporation temperature error data, calculates a target compressor speed based on the first and second compressor speeds, and controls the compressor based on the target compressor speed. This method can bring the compressor speed closer to the actual cooling demand speed, effectively reducing errors and thus optimizing the performance of the air conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] FIG1 is a flowchart of a method for controlling a compressor according to an embodiment of the present application;

[0047] FIG2 is a schematic diagram of a partial composition of an air conditioning system provided by an embodiment of the present application;

[0048] FIG3 is a flow chart of cycle control of a compressor provided by one embodiment of the present application;

[0049] FIG4 is a structural block diagram of a device for controlling a compressor provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] To make the above-mentioned purposes, features, and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and specific embodiments. It is apparent that the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in this application without inventive effort are also within the scope of protection of this application.

[0051] In automotive systems, air conditioning is a major energy consumer, especially in electric vehicles, where limited battery capacity limits the vehicle's range. With the increasing popularity of new energy vehicles, making air conditioning more energy-efficient to extend vehicle range is a pressing issue for the industry.

[0052] Specifically, in electric vehicle air conditioning systems, the system controls the refrigerant flow rate by adjusting the compressor speed. The higher the compressor speed, the faster the refrigerant circulates within the system, and the greater the cooling capacity. In actual operating environments, the compressor's operating conditions vary widely due to various factors (such as temperature and air pressure). Therefore, rationally controlling the compressor speed to meet actual cooling needs and avoid unnecessary energy loss is key to achieving energy conservation.

[0053] One of the core concepts of the embodiments of the present application is to determine the speed of the compressor feedforward control by the cooling demand of the evaporator in the automobile air-conditioning system, and to determine the speed of the compressor feedback control by the temperature error data of the evaporator.

[0054] Feedforward control refers to the control strategy adopted before the output is affected by disturbance factors; feedback control refers to the control strategy adopted after the output is affected by disturbance factors, so it is also called feedback compensation control.

[0055] By combining the speed of feedforward control with the speed of feedback control to determine the target control speed of the compressor during actual operation, the embodiment of the present application can make the control speed of the compressor in the air-conditioning system closer to the speed required for actual cooling, thereby achieving greater energy savings. Especially for electric vehicles, saving energy in the air-conditioning system can significantly improve the vehicle's range.

[0056] 1 , a flowchart of a method for controlling a compressor according to an embodiment of the present application is shown. The method may include the following steps:

[0057] Step 101, obtaining the cooling demand of the evaporator;

[0058] The cooling demand of the evaporator refers to the total amount of heat that the evaporator needs to remove from the confined space or area per unit time, and its unit is generally expressed in W (watt).

[0059] In some embodiments of the present application, before step 101, the method further includes:

[0060] Step 11, obtaining the air inlet volume of the evaporator;

[0061] In some embodiments of the present application, before the step of obtaining the air inlet volume of the evaporator, the method further includes:

[0062] Step 1001, obtaining a second correspondence between the operating voltage of the blower and the air volume of the evaporator air inlet;

[0063] The blower is responsible for blowing the cold / hot air produced by the evaporator out of the air outlet of the air conditioner. The greater the working voltage of the blower, the greater the output power, and the air volume entering the evaporator air inlet also increases accordingly.

[0064] In practical applications, the air conditioning system can be tested in advance, and the air volume of the evaporator air inlet can be detected by controlling the blower to operate at different operating voltages. A second correspondence table between the blower operating voltage and the air volume of the evaporator air inlet can be established to represent the second correspondence. The correspondence table can be shown in Table 1:

[0065] Table 1

[0066] Step 1002, obtaining a target operating voltage of the blower;

[0067] The target operating voltage of the blower is the current operating voltage of the blower when the air conditioning system is operating normally.

[0068] Step 1003: Determine the air intake volume of the evaporator air inlet according to the target operating voltage of the blower and the second corresponding relationship.

[0069] In practical applications, when the actual speed of the compressor is controlled, as shown in FIG2 , the blower voltage acquisition module can detect the target operating voltage of the blower and feed it back to the air conditioning control unit. The air conditioning control unit can determine the air intake volume of the evaporator air inlet by looking up the target operating voltage in the pre-established second correspondence table as shown in Table 1. If there is no accurate matching target operating voltage in the second correspondence table, the two operating voltages adjacent to the target operating voltage and the corresponding air intake volume correspondence data can be looked up, and the air intake volume corresponding to the target operating voltage can be determined based on the linear difference method. For example, if the target operating voltage is 5.5V and there is no accurate matching data in the second correspondence as shown in Table 1, the adjacent operating voltage 5V and the corresponding air intake volume 236kg / m3, as well as the operating voltage 6V and the corresponding air intake volume 291.2kg / m3 can be found, and the air intake volume corresponding to the operating voltage 5.5V can be determined based on the linear difference method.

[0070] Step 12: obtaining the enthalpy difference between the evaporator air outlet and the evaporator air inlet;

[0071] The enthalpy difference between the evaporator outlet and the evaporator inlet represents the heat absorbed or released by the evaporator.

[0072] In practical applications, the enthalpy difference between the evaporator outlet and the evaporator inlet is denoted as ΔH, which can be determined by the following formula: ΔH=CP×ΔT

[0073] Where CP is the specific heat capacity of air, which is generally a constant of 1.005KJ / (Kg*K), and ΔT is the temperature difference between the evaporator outlet and the evaporator inlet.

[0074] In actual application, as shown in FIG2 , the actual outlet air temperature acquisition module may acquire the temperature of the evaporator outlet, and the actual inlet air temperature acquisition module may acquire the temperature of the evaporator inlet, and the relevant temperature data may be fed back to the air conditioning control unit.

[0075] Step 13: Determine the cooling demand of the evaporator according to the air intake volume and the enthalpy difference.

[0076] In practical applications, the cooling demand of the evaporator is recorded as Q eva The air volume at the evaporator inlet is M, and the cooling demand Q of the evaporator can be determined by the following formula: eva : Q eva =M×ΔH

[0077] Step 102: determining a first compressor speed based on the cooling demand;

[0078] Compressor speed refers to the number of revolutions per minute (rpm). It's typically expressed in revolutions per minute (rpm / min). Speed ​​directly impacts compressor efficiency and energy consumption. Generally speaking, higher speeds increase compressor efficiency and cooling effectiveness, but also increase energy consumption. Lower speeds, on the other hand, reduce efficiency and energy consumption.

[0079] In the embodiment of the present application, the first compressor speed, i.e., the speed of the compressor feedforward control, mainly considers the influence of the evaporator's own working mode.

[0080] In actual applications, as shown in FIG2 , the feedforward compressor determination module mounted on the air-conditioning control unit may execute the relevant business logic for determining the speed of the first compressor.

[0081] In some embodiments of the present application, step 102 further includes:

[0082] Sub-step 121, obtaining a first correspondence between the cooling demand and the speed of the first compressor;

[0083] In practical applications, the air conditioning system can be tested in advance under standard test conditions according to different evaporator cooling demands to obtain the first compressor speed corresponding to different evaporator cooling demands, and a corresponding relationship table between the cooling demands and the first compressor speed can be established to represent the first corresponding relationship. The corresponding relationship table can be shown in Table 2:

[0084] Table 2

[0085] The standard test conditions may be set as follows: evaporator suction pressure = 1.6 MPa, evaporator exhaust pressure = 0.3 MPa, evaporator superheat = 10°C, and evaporator subcooling = 5°C.

[0086] Sub-step 122: determining the first compressor speed according to the cooling demand and the first corresponding relationship.

[0087] In practical applications, when the compressor is actually controlled, the corresponding first compressor speed can be determined by searching the table for the cooling demand based on the first correspondence. If there is no accurately matched cooling demand in the first correspondence, two cooling demands close to the cooling demand and their corresponding first compressor speeds can be searched for and determined based on the linear difference method. For example, if the cooling demand is 1800 and there is no accurately matched data in the first correspondence shown in Table 1, then the adjacent cooling demand of 1500 and the corresponding first compressor speed of 1500, as well as the cooling demand of 2000 and the corresponding first compressor speed of 2000, can be found. Based on the linear difference method, the first compressor speed corresponding to the cooling demand of 1800 can be determined.

[0088] Step 103, obtaining evaporation temperature error data of the evaporator;

[0089] In some embodiments of the present application, before step 103, the method further includes:

[0090] Step 31, obtaining the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator;

[0091] Step 32 : determining the evaporation temperature error data according to the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator.

[0092] The target air outlet temperature of the evaporator is the set air outlet temperature of the evaporator during normal operation; the actual air outlet temperature of the evaporator is the air outlet temperature detected during actual operation of the evaporator. Due to the influence of factors such as the external environment or internal factors of the system, the actual air outlet temperature will generally deviate from the target air outlet temperature.

[0093] In actual application, as shown in FIG2 , the target outlet air temperature setting module may determine the target outlet air temperature, the actual outlet air temperature acquisition module may determine the actual outlet air temperature, and the relevant temperature data may be fed back to the air conditioning control unit.

[0094] In practical applications, the evaporation temperature error is recorded as T VntErr , the target air outlet temperature of the evaporator is T VntTgt , the actual air outlet temperature of the evaporator is T VntAct , evaporation temperature error of evaporator T VntErrIt can be determined by the following formula: VntErr =T VntAct -T VntTgt

[0095] Step 104: determining a second compressor speed based on the evaporation temperature error data;

[0096] In the embodiment of the present application, the second compressor speed is the feedback control speed, which mainly considers the impact of the operating conditions of the evaporator.

[0097] In actual applications, as shown in FIG2 , the feedback compressor determination module mounted on the air-conditioning control unit may execute the relevant business logic for determining the speed of the second compressor.

[0098] In some embodiments of the present application, the evaporation temperature error data includes a first evaporation temperature error at a current moment and a second evaporation temperature error at a previous moment. Step 104 includes:

[0099] Sub-step 141, obtaining a correlation coefficient corresponding to the first evaporation temperature error;

[0100] The correlation coefficient corresponding to the first evaporation temperature error may include a proportional coefficient and an integral coefficient in PID (proportional-integral-differential) control. The proportional coefficient is used to convert the numerical value of the temperature error by a certain proportion to obtain a compensated compressor speed based on proportional control, and the integral coefficient is used to integrate the numerical value of the temperature error within a unit time interval (i.e., the first temperature error at the current moment and the second temperature error at the previous moment, where the unit time interval may be seconds) to obtain a compensated compressor speed based on integral control.

[0101] In practical applications, the air-conditioning system can be tested in advance to simulate the evaporation temperature error of the evaporator under different working conditions and calibrate the proportional coefficient and integral coefficient respectively to obtain the corresponding relationship between the evaporation temperature error and the proportional coefficient and integral coefficient.

[0102] The corresponding relationship between the evaporation temperature error and the proportional coefficient can be shown in Table 3:

[0103] Table 3

[0104] The corresponding relationship between the evaporation temperature error and the integral coefficient can be shown in Table 4:

[0105] Table 4

[0106] When the speed of the compressor is controlled, the proportional coefficient and the integral coefficient corresponding to the first evaporation temperature error are obtained by matching the pre-established correspondence between the temperature error and the proportional coefficient and the integral coefficient.

[0107] Sub-step 142 : determining the second compressor speed according to the first evaporating temperature error, the second evaporating temperature error, and a correlation coefficient corresponding to the first evaporating temperature error.

[0108] In practical applications, when the correlation coefficient corresponding to the first evaporation temperature error includes a proportional coefficient and an integral coefficient, the proportional coefficient is Kp, the integral coefficient is Ki, and the current temperature error is T VntErr0 , the temperature error at the previous moment is T vntErr1 , the second compressor speed N fb It can be determined by the following formula: N fb =Kp×T VntErr0 +Ki×(T VntErr0 +T vntErr1 )

[0109] Step 105: determining a target compressor speed according to the first compressor speed and the second compressor speed;

[0110] In some embodiments of the present application, step 105 includes:

[0111] The first compressor speed and the second compressor speed are summed to determine the target compressor speed.

[0112] In practical applications, the first compressor speed, i.e. the feedforward control speed, is recorded as N ff The second compressor speed, i.e. the feedback control speed, is N fb , target compressor speed N tgt It can be determined by the following formula: N tgt =N ff +N fb

[0113] Step 106: Control the compressor based on the target compressor speed.

[0114] In actual applications, as shown in FIG2 , the air-conditioning control unit may feed back the target compressor speed to the compressor control module, and the compressor control module uses the target compressor speed to control the compressor.

[0115] In some embodiments of the present application, as shown in FIG3 , the control process of the compressor speed at a certain moment may be composed of the following parts:

[0116] Data collection, collects data in sequence, which may include target air outlet temperature, actual air outlet temperature, actual air inlet temperature, blower operating voltage, etc.

[0117] Calculating a target compressor speed, based on the collected data, respectively calculating a first compressor speed (i.e., a feedforward compressor speed) and a second compressor speed (i.e., a feedback compressor speed); and obtaining a target compressor speed based on the first compressor speed and the second compressor speed;

[0118] Compressor control: controls the compressor according to the target compressor speed.

[0119] For the compressor control at each subsequent moment, the above control process is executed cyclically.

[0120] The embodiments of the present application have the following advantages: by obtaining the cooling demand of the evaporator, determining the first compressor speed based on the cooling demand, obtaining the evaporation temperature error data of the evaporator, determining the second compressor speed based on the evaporation temperature error data, calculating the target compressor speed based on the first compressor speed and the second compressor speed, and controlling the compressor based on the target compressor speed, the compressor speed can be made closer to the speed of the actual cooling demand, effectively reducing the error, so that the air-conditioning system can achieve optimal performance.

[0121] It should be noted that for the method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present application are not limited by the order of the actions described, because according to the embodiments of the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present application.

[0122] 4 , a schematic structural diagram of a compressor control device according to an embodiment of the present application is shown, which may include the following modules:

[0123] The cooling capacity acquisition module 401 is used to obtain the cooling demand of the evaporator;

[0124] A first compressor speed determining module 402 is configured to determine a first compressor speed based on the cooling demand;

[0125] An evaporation temperature error data acquisition module 403 is used to acquire evaporation temperature error data of the evaporator;

[0126] a second compressor speed determining module 404, configured to determine a second compressor speed based on the evaporation temperature error data;

[0127] a target compressor speed determining module 405 , configured to determine a target compressor speed based on the first compressor speed and the second compressor speed;

[0128] The compressor control module 406 is configured to control the compressor based on the target compressor speed.

[0129] In some embodiments of the present application, the device further includes:

[0130] An air intake volume acquisition module, configured to acquire the air intake volume of the evaporator air inlet;

[0131] an enthalpy difference acquisition module, configured to acquire the enthalpy difference between the evaporator air outlet and the evaporator air inlet;

[0132] A cooling demand determination module is used to determine the cooling demand of the evaporator according to the inlet air volume and the enthalpy difference.

[0133] In some embodiments of the present application, the first compressor speed determination module 402 includes:

[0134] a first correspondence determination submodule, configured to obtain a first correspondence between the cooling demand and the speed of the first compressor;

[0135] The first compressor speed determination submodule is configured to determine the first compressor speed according to the cooling demand and the first corresponding relationship.

[0136] In some embodiments of the present application, the evaporation temperature error data includes a first evaporation temperature error at a current moment and a second evaporation temperature error at a previous moment, and the second compressor speed determination module 404 includes:

[0137] a coefficient determination submodule, configured to obtain a correlation coefficient corresponding to the first evaporation temperature error;

[0138] The second compressor speed determining submodule is configured to determine the second compressor speed according to the first evaporating temperature error, the second evaporating temperature error, and a correlation coefficient corresponding to the first evaporating temperature error.

[0139] In some embodiments of the present application, the device further includes:

[0140] a second corresponding relationship obtaining module, configured to obtain a second corresponding relationship between the operating voltage of the blower and the air inlet volume of the evaporator;

[0141] A blower voltage acquisition module, configured to acquire a target operating voltage of the blower;

[0142] An air intake volume acquisition module is used to determine the air intake volume of the evaporator air inlet according to the target operating voltage of the blower and the second corresponding relationship.

[0143] In some embodiments of the present application, the device further includes:

[0144] The air outlet temperature acquisition module is used to obtain the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator;

[0145] The evaporation temperature error data determination module is used to determine the evaporation temperature error data according to the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator.

[0146] In some embodiments of the present application, the target compressor speed determination module 405 includes:

[0147] The target compressor speed determination submodule is configured to sum the first compressor speed and the second compressor speed to determine the target compressor speed.

[0148] An embodiment of the present application further provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the above compressor control method is implemented.

[0149] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above compressor control method is implemented.

[0150] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0151] An embodiment of the present application further provides a computer program, which, when executed by a processor, implements any of the above-mentioned compressor control methods.

[0152] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above-mentioned compressor control methods.

[0153] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0154] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0155] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the embodiments of the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0156] The present application embodiment is described with reference to the flow chart and / or block diagram of the method, terminal device (system), and computer program product according to the embodiment of the present application. It should be understood that each process and / or box in the flow chart and / or block diagram and the combination of the process and / or box in the flow chart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device produce a device for realizing the function specified in one process or multiple processes and / or one box or multiple boxes of the flow chart.

[0157] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0158] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce computer-implemented processing, so that the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0159] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0160] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the above elements.

[0161] The above is a detailed introduction to the control method, device, equipment and storage medium of the provided compressor. Specific examples are used in this article to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method of this application and its core idea; at the same time, for general technical personnel in this field, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on this application.

Claims

1. A control method for a compressor, characterized in that, The method includes: Obtaining the refrigeration demand of the evaporator; Determining the first compressor speed based on the refrigeration demand; Obtaining the evaporation temperature error data of the evaporator; Determining the second compressor speed based on the evaporation temperature error data; Determining the target compressor speed according to the first compressor speed and the second compressor speed; Controlling the compressor based on the target compressor speed.

2. The method according to claim 1, wherein Before the step of obtaining the refrigeration demand of the evaporator, it includes: Obtaining the air volume of the air inlet of the evaporator; Obtaining the enthalpy difference between the air outlet of the evaporator and the air inlet of the evaporator; Determining the refrigeration demand of the evaporator according to the air volume and the enthalpy difference.

3. The method according to claim 1 or 2, characterized in that, The step of determining the first compressor speed based on the refrigeration demand includes: Obtaining the first correspondence between the refrigeration demand and the first compressor speed; Determining the first compressor speed according to the refrigeration demand and the first correspondence.

4. The method according to any one of claims 1 to 3, characterized in that, The evaporation temperature error data includes the first evaporation temperature error at the current moment and the second evaporation temperature error at the previous moment. The step of determining the second compressor speed based on the evaporation temperature error data includes: Obtaining the correlation coefficient corresponding to the first evaporation temperature error; Determining the second compressor speed according to the first evaporation temperature error, the second evaporation temperature error, and the correlation coefficient corresponding to the first evaporation temperature error.

5. The method according to claim 2, characterized in that, Before the step of obtaining the air volume of the air inlet of the evaporator, it includes: Obtaining the second correspondence between the working voltage of the blower and the air volume of the air inlet of the evaporator; Obtaining the target working voltage of the blower; Determining the air volume of the air inlet of the evaporator according to the target working voltage of the blower and the second correspondence.

6. The method according to any one of claims 1 to 5, characterized in that, Before the step of obtaining the evaporation temperature error data of the evaporator, it includes: Obtaining the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator; Determining the evaporation temperature error data according to the actual air outlet temperature of the evaporator and the target air outlet temperature of the evaporator.

7. The method according to any one of claims 1 to 6, characterized in that, The step of determining the target compressor speed according to the first compressor speed and the second compressor speed includes: Adding the first compressor speed and the second compressor speed to determine the target compressor speed.

8. A control device for a compressor, characterized in that, The device includes: A refrigeration capacity acquisition module for obtaining the refrigeration demand of the evaporator; A first compressor speed determination module for determining the first compressor speed based on the refrigeration demand; An evaporation temperature error data acquisition module for obtaining the evaporation temperature error data of the evaporator; A second compressor speed determination module for determining the second compressor speed based on the evaporation temperature error data; A target compressor speed determination module for determining the target compressor speed according to the first compressor speed and the second compressor speed; A compressor control module for controlling the compressor based on the target compressor speed.

9. An electronic device, characterized in that, Comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program, when executed by the processor, implements the control method of the compressor according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it implements the control method of the compressor according to any one of claims 1 to 7.

11. A computer program, characterized in that, When the computer program is executed by a processor, it implements the control method of the compressor according to any one of claims 1 to 7.

12. A computer program product, characterized in that, Comprising a computer program, which, when executed by a processor, implements the control method of the compressor according to any one of claims 1 to 7.

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