Control method of air conditioner compressor and related device thereof

Abstract

The invention discloses a control method of an air conditioner compressor and a related device thereof, and the method comprises the steps that the winding resistance value of the compressor and the current environment temperature are obtained by responding to the condition that the compressor of an air conditioner meets the preset winding preheating condition; the winding resistance value and the current environment temperature are substituted into a preset current calculation model for calculation, and the winding preheating current of the compressor is obtained; and executing a winding preheating program, and applying winding preheating current to enable the winding temperature to reach a preset target temperature range. When the compressor meets the winding preheating condition, the winding resistance value of the compressor and the current environment temperature are combined, the winding preheating current of the compressor is obtained through calculation, the compressor can be compatible with compressors of different models, meanwhile, the requirements at different environment temperatures are also considered, the preheating effect is met, meanwhile, the reliability of the compressor is improved, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning control, and in particular to a control method for an air-conditioning compressor and related devices thereof. Background Art

[0002] In air-conditioning systems, preheating of the compressor winding plays an important role in ensuring the normal startup and operation of the air conditioner.

[0003] At present, in the existing compressor winding preheating scheme, a fixed current is usually used to preheat the compressor winding. The preheating current is set to a smaller value (such as 2.5A) to ensure a certain preheating function and ensure safety. However, in a low temperature environment, the preheating current may not provide enough heat, resulting in poor winding preheating effect, affecting the starting performance of the compressor. On the other hand, in order to improve the preheating effect, there is also a scheme of using a larger preheating current (such as 8A). This method can ensure a better preheating effect, but it will cause the winding temperature to rise, even exceeding the requirements of the compressor manufacturer. Under the preheating scheme with a larger current, although the normal operation of the preheating function can be guaranteed, it may cause the winding temperature to exceed the standard, thereby affecting the reliability and safety of the compressor. Summary of the Invention

[0004] The present application provides a control method for an air-conditioning compressor and a related device thereof, which can improve the accuracy of the winding preheating current of the air-conditioning compressor and enhance the reliability and safety of the compressor.

[0005] A technical solution adopted in this application is to provide a control method for an air-conditioning compressor, the control method for the air-conditioning compressor comprising:

[0006] In response to a compressor of the air conditioner meeting a preset winding preheating condition, obtaining a winding resistance value and a current ambient temperature of the compressor;

[0007] Based on the winding resistance value and the current ambient temperature, determining the winding preheating current through a preset current calculation model;

[0008] The winding preheating procedure is executed to make the winding temperature reach a preset target temperature range by applying the winding preheating current.

[0009] In some embodiments, the step of determining the winding preheating current by using a preset current calculation model based on the winding resistance value and the current ambient temperature includes:

[0010] Calculating a first sum of the winding resistance and a first constant, a second sum of a product of the current ambient temperature and a second constant and a third constant, and a first product of the winding resistance and a fourth constant;

[0011] multiplying the first sum value by the second sum value to obtain a second product value;

[0012] The second product value is divided by the first product value, and the quotient of the division is used as the winding preheating current.

[0013] In some embodiments, the determining of the winding preheating current by a preset current calculation model based on the winding resistance value and the current ambient temperature includes:

[0014] Establish an initial formula model;

[0015] determining a plurality of different models of test compressors and winding operating conditions of the test compressors;

[0016] Performing a winding preheating test using multiple sets of different test parameters to obtain winding temperature test data for each test compressor under each set of the test parameters; wherein the test parameters include at least one of an ambient temperature test parameter, a winding preheating current test parameter, and a test duration;

[0017] In response to at least one set of the winding temperature test data and the winding preheating current test parameter satisfying the winding operating condition, determining the corresponding test parameter as a target test parameter;

[0018] The initial formula model is adjusted according to at least one set of the target test parameters to obtain the current calculation model.

[0019] In some embodiments, in response to at least one set of the winding temperature test data and the winding preheating current test parameter satisfying the winding operating condition, determining the corresponding test parameter as the target test parameter includes:

[0020] In response to at least one set of the winding temperature test data being less than a preset coil temperature threshold, and the winding preheating current test parameter being less than a preset preheating current threshold, the corresponding test parameter is determined as a target test parameter.

[0021] In some embodiments, performing the winding preheating test using multiple sets of different test parameters to obtain winding temperature test data of each test compressor under each set of the test parameters includes:

[0022] Binding the test compressor to a temperature sensor;

[0023] A winding preheating test is performed using multiple groups of different test parameters, and winding temperature test data of the test compressor corresponding to each group is obtained through the temperature sensor.

[0024] In some embodiments, in response to the compressor of the air conditioner meeting a preset winding preheating condition, obtaining the winding resistance value and the current ambient temperature of the compressor includes:

[0025] In response to the compressor starting failure, a winding resistance value and a current ambient temperature of the compressor are obtained.

[0026] In some embodiments, the step of executing the winding preheating procedure, applying the winding preheating current so that the winding temperature reaches a preset target temperature range, then includes:

[0027] applying a preset test current to the compressor to detect the starting resistance of the compressor;

[0028] The preheating effect of the winding preheating current is obtained according to the starting resistance, and whether to restart the compressor is determined according to the preheating effect.

[0029] Another technical solution adopted in this application is: a control device for an air-conditioning compressor, the control device for the air-conditioning compressor comprising:

[0030] an acquisition module, configured to acquire a winding resistance value and a current ambient temperature of the compressor in response to the compressor of the air conditioner satisfying a preset winding preheating condition;

[0031] a calculation module, configured to determine a winding preheating current based on the winding resistance value and the current ambient temperature using a preset current calculation model;

[0032] The preheating module is used to execute the winding preheating program and make the winding temperature reach a preset target temperature range by applying the winding preheating current.

[0033] Another technical solution adopted by the present application is to provide an electronic device, the electronic device comprising:

[0034] a memory for storing executable program code;

[0035] The processor is configured to call and run the executable program code from the memory, so that the electronic device executes the air-conditioning compressor control method as described above.

[0036] Another technical solution adopted in the present application is to provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the control method of the air-conditioning compressor as described in any one of the above items is implemented.

[0037] An embodiment of the present application provides a method for controlling an air conditioner compressor, the method comprising: obtaining a winding resistance value and a current ambient temperature of the compressor in response to the compressor meeting a preset winding preheating condition; determining a winding preheating current based on the winding resistance value and the current ambient temperature using a preset current calculation model; and executing a winding preheating program to apply the winding preheating current so that the winding temperature reaches a preset target temperature range. By calculating the compressor winding preheating current based on the compressor winding resistance value and the current ambient temperature when the compressor meets the winding preheating condition, the method is compatible with compressors of different models and takes into account requirements at different ambient temperatures, thereby improving the reliability and lifespan of the compressor while ensuring a preheating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a flow chart of a first embodiment of a method for controlling an air-conditioning compressor of the present application;

[0039] Figure 2 This is a flow chart of a second embodiment of the control method for an air-conditioning compressor of the present application;

[0040] Figure 3 This is an exemplary flow chart of the control method of the air-conditioning compressor of the present application;

[0041] Figure 4 This is a flow chart of a third embodiment of the control method for an air-conditioning compressor of the present application;

[0042] Figure 5 This is an exemplary structural block diagram of an electronic device for the control method of an air-conditioning compressor of the present application;

[0043] Figure 6 It is an exemplary structural block diagram of a computer-readable storage medium of the air-conditioning compressor control method of the present application. DETAILED DESCRIPTION

[0044] The present application is described in detail below with reference to the accompanying drawings and implementation methods.

[0045] In some embodiments, see Figure 1 , Figure 1 It is a flow chart of the first embodiment of the control method of the air-conditioning compressor of the present application. It should be noted that if there is substantially the same result, the method of the present application is not limited to the first embodiment. Figure 1 The process sequence shown is limited. Figure 1 As shown, the control method of the air-conditioning compressor includes:

[0046] Step S101, in response to a compressor of an air conditioner meeting a preset winding preheating condition, obtaining a winding resistance value and a current ambient temperature of the compressor;

[0047] As an example, different models of air conditioning compressors have different winding coil specifications and different temperatures in different environments. For example, in low-temperature environments, a fixed low preheating current may result in insufficient preheating capacity, making it difficult for the compressor to start; while in high-temperature environments, a fixed high preheating current may cause the winding temperature to overheat, posing a safety hazard. Therefore, the embodiments of the present application improve the accuracy of the air conditioning compressor's winding preheating current by combining the winding resistance value and the current temperature, thereby enhancing the compressor's reliability and safety.

[0048] The compressor winding resistance value may be a rated winding resistance value of the compressor winding. Different compressor models may have different winding resistance values. The current ambient temperature may be measured by a temperature sensor. For example, the temperature sensor may be an outdoor unit temperature sensor of an air conditioner, an indoor unit temperature sensor of an air conditioner, or a temperature sensor inside the compressor.

[0049] In some embodiments, the winding preheating condition includes at least one of the following: the compressor fails to start, the current ambient temperature is less than a preset ambient temperature threshold, and the compressor does not operate within a preset time threshold.

[0050] In some exemplary embodiments, the air conditioner outdoor unit software may obtain the winding resistance value and the current ambient temperature of the compressor in response to the compressor of the air conditioner meeting a preset winding preheating condition.

[0051] Step S102, determining the winding preheating current through a preset current calculation model based on the winding resistance value and the current ambient temperature;

[0052] The winding preheating current may be a specific current applied before the compressor starts to increase the winding temperature. In this embodiment, the winding preheating current is calculated based on the current ambient temperature and the compressor winding resistance. This winding preheating current, when flowing through the winding coil, not only provides sufficient heat but also prevents the winding temperature from increasing or exceeding the specified temperature.

[0053] Step S103 , executing a winding preheating procedure, applying the winding preheating current so that the winding temperature reaches a preset target temperature range.

[0054] The target temperature range may be a temperature that matches the current ambient temperature and the winding resistance value of the compressor, which is not only within the safe temperature threshold range but also does not exceed the requirements of the compressor manufacturer.

[0055] In some embodiments, a relatively low DC voltage may be applied to the windings; alternatively, a low-current AC may be used to heat the windings by intermittently energizing them in short cycles.

[0056] In this embodiment, when the compressor meets the winding preheating conditions, the winding preheating current of the compressor is calculated by combining the winding resistance value of the compressor and the current ambient temperature. This can be compatible with compressors of different models while taking into account the requirements under different ambient temperatures. While meeting the preheating effect, the reliability and life of the compressor are improved.

[0057] See also Figure 2 , Figure 2 1 is a flow chart of a second embodiment of the control method for an air-conditioning compressor of the present application. The method comprises the following steps:

[0058] Step S201 : In response to the compressor starting failure, obtaining the winding resistance value and current ambient temperature of the compressor.

[0059] As an illustrative example, in order for the air-conditioning compressor to start normally, the winding coil can be preheated before starting, so that the compressor oil is in a non-solidified state, with less compressor starting resistance, thereby improving the compressor's ability to start normally in a low-temperature environment.

[0060] Among them, conditions such as low temperature environment will cause the compressor to fail to start.

[0061] Step S202, calculating a first sum of the winding resistance and a first constant, a second sum of a product of the current ambient temperature and a second constant and a third constant, and a first product of the winding resistance and a fourth constant;

[0062] As an illustrative example, since the winding resistance value may vary with temperature, the first constant may be used as a reference value to compensate for the error of the winding resistance value varying with temperature.

[0063] Since the current ambient temperature can affect the resistance of the winding and the required winding preheating current, the second constant can be used to perform unit conversion or linear correction for the current ambient temperature, and the third constant can be used to adjust the current ambient temperature so that the calculated winding preheating current is more consistent with the actual operating conditions of the compressor.

[0064] Since the winding resistance value affects the calculation of the current passed during preheating, the fourth constant can be used to match the current calculation or perform proportional adjustment.

[0065] Step S203, multiplying the first sum value by the second sum value to obtain a second product value;

[0066] As an illustrative example, by multiplying the corrected first sum value and the second sum value, the resistance and the current ambient temperature can be combined together, which can effectively match the actual working characteristics of the winding coil.

[0067] Step S204 : dividing the second product value by the first product value, and using the quotient of the division as the winding preheating current.

[0068] As an illustrative example, in order to convert the relationship between temperature and resistance into a winding preheating current, the second product value can be divided by the first product value so that the winding preheating current can maintain a reasonable preheating effect under different ambient temperatures and winding resistance values, thereby adapting to different working conditions and improving the operating stability and life of the compressor.

[0069] In an exemplary embodiment, the winding preheating current is calculated using the following preset current calculation model (1):

[0070]

[0071] Among them, I represents the preheating current, R represents the winding resistance value, TT represents the current ambient temperature, a is a first constant, b is a second constant, c is a third constant, and d is a fourth constant; a, b, c, and d are constant coefficients determined through experiments.

[0072] In another exemplary embodiment, the winding preheating current is calculated by the following preset current calculation model (2):

[0073]

[0074] Wherein, I represents the preheating current; R represents the winding resistance value; T represents the current ambient temperature, 1 is the first constant, -0.12 is the second constant, 5.6 is the third constant, and 2 is the fourth constant.

[0075] As an exemplary embodiment, if the current ambient temperature is T=1° C. and the winding resistance is R=1Ω, the winding preheating current I=5.48A.

[0076] Step S205 , executing a winding preheating procedure, applying the winding preheating current so that the winding temperature reaches a preset target temperature range.

[0077] As an illustrative example, the implementation and beneficial effects of step S205 may be the same as those of step S103. After preheating is completed, the outdoor unit control software may restart the compressor and enter normal operation mode.

[0078] Step S206: applying a preset test current to the compressor to detect the starting resistance of the compressor.

[0079] As an illustrative example, in order to evaluate the preheating effect of the compressor winding, a set of preset test current signals can be applied to the compressor drive motor before the compressor is restarted. The amplitude of the test current is lower than the normal starting current, which can put the compressor in a state of attempting to start without causing it to fully operate. By monitoring the response parameters of the motor under the action of the test current (such as the current change rate, motor speed change, motor start delay, etc.), it can reflect the difficulty of starting the compressor under the current temperature conditions, that is, the starting resistance. The greater the starting resistance, the higher the viscosity of the lubricating oil inside the compressor and the more severe the mechanical friction, reflecting that the current state of the compressor may be too low and insufficiently preheated.

[0080] Step S207: obtaining a preheating effect of the winding preheating current according to the starting resistance, and determining whether to restart the compressor according to the preheating effect.

[0081] As an example, the detected starting resistance parameter is compared with a pre-established reference data model based on starting resistance data samples under different preheating conditions. For example, under normal preheating conditions, the compressor's starting resistance is within the expected range. However, under insufficient preheating conditions, the starting resistance is higher. This comparative analysis can determine whether the current winding preheating current achieves the desired preheating effect within a specific time period.

[0082] If the preheating effect is satisfactory, the compressor can be restarted and enter normal operation mode. If the preheating effect is insufficient, the winding preheating program can continue to maintain the preheating state, extend the heating time or increase the preheating power until the compressor starting resistance is detected to be within the target threshold range.

[0083] As an exemplary embodiment, see Figure 3The air conditioner's outdoor unit control software can monitor the ambient temperature and compressor operating status in real time. When the compressor meets the preset winding preheating conditions, such as compressor startup failure, low ambient temperature, or prolonged inactivity, the outdoor unit control software reads the winding resistance value from the compressor parameter library and simultaneously obtains the current ambient temperature through the temperature sensor. The outdoor unit control software then executes the preheating current algorithm, substituting the obtained winding resistance value and ambient temperature into the preset current calculation model to obtain the winding preheating current = (winding resistance value R + 1) × (-0.12 × current ambient temperature T + 5.6) ÷ (2 × winding resistance value R). The outdoor unit control software then dynamically adjusts the winding preheating current based on the calculation result. The outdoor unit software controls the compressor winding power supply and applies the calculated winding preheating current to bring the winding temperature to the preset target temperature range. After preheating is complete, the outdoor unit control software can restart the compressor. Before restarting the compressor, the corresponding preheating effect can be obtained based on the starting resistance, and further adjustments can be determined based on the preheating effect.

[0084] The preset current calculation model in this embodiment mathematically transforms parameters such as ambient temperature and compressor winding resistance, ensuring that the calculation of the preheating current complies with the basic physical laws of Ohm's law and Joule's law. A ratio relationship is established between the current ambient temperature and the winding resistance, ensuring that the final calculated current value has reasonable physical meaning. This not only accounts for changes in ambient temperature, allowing the calculated preheating current to automatically adjust, but also ensures that the winding reaches the appropriate preheating state under different temperature environments. Furthermore, the compressor preheating state can be assessed through the existing motor control system without relying on a complex additional temperature sensor layout, improving the reliability and preheating accuracy of the winding preheating process.

[0085] See also Figure 4 , Figure 4 1 is a flow chart of a third embodiment of the control method for an air-conditioning compressor of the present application. The method comprises the following steps:

[0086] Step S401, establishing an initial formula model;

[0087] As an illustrative example, since the calculation of preheating current involves multiple variables, relying directly on empirical values may not be accurate enough. An initial model provides a starting point, which can be subsequently refined using experimental data for greater accuracy. Therefore, a basic mathematical model can be constructed as a preliminary calculation framework to describe the relationship between the winding preheating current and factors such as ambient temperature and resistance.

[0088] Step S402, determining a plurality of test compressors of different models and winding operating conditions of the test compressors;

[0089] As an example, different compressor models can be tested to cover different power levels, winding structures, operating environments, etc. By determining the normal operating conditions of the windings, it can be determined whether the preheating effect meets the standards and whether the preheating is sufficient.

[0090] The winding operating conditions may be the compressor manufacturer's requirements for coil temperature and current, for example, the parameters of the winding coil under normal operating conditions, such as the rated operating temperature range, the allowable temperature rise range, and the insulation withstand capability.

[0091] Step S403, performing a winding preheating test using multiple sets of different test parameters to obtain winding temperature test data of each test compressor under each set of test parameters; wherein the test parameters include an ambient temperature test parameter, a winding preheating current test parameter, and a test duration;

[0092] As an example, since test parameters can reflect the preheating status of the winding under different operating conditions, by using different test parameters for testing, its impact on the preheating effect can be analyzed and the preset current calculation model can be optimized. Multiple sets of preheating experiments can be performed based on different ambient temperatures, different input currents, and different test durations. Then, the winding temperature test data of the winding coil under each set of experiments is recorded.

[0093] This can include setting different ambient temperatures such as -20°C, -10°C, -5°C, 0°C, 5°C, 10°C, etc.; applying different sizes of winding preheating current test parameters to measure the winding temperature changes.

[0094] The winding preheat current test parameter can be the preheat current applied to the winding coil during the test, which is used to obtain winding temperature test data for each tested compressor. The coil temperature threshold is the maximum winding temperature standard for the compressor and can be determined based on the equipment specifications of the compressor. The winding preheat current test parameter can be the current actually applied to the winding coil during the test. The preheat current threshold can be the maximum safe preheat current for the tested compressor and can be determined based on the winding coil's tolerance, energy consumption optimization, and safety.

[0095] In some embodiments, step S403 may include: binding the test compressor to a temperature sensor; performing a winding preheating test using multiple groups of different test parameters, and obtaining winding temperature test data of each group of the test compressor corresponding to the temperature sensor.

[0096] As an illustrative example, binding a temperature sensor to a test compressor can monitor the winding temperature in real time, ensure the accuracy of the test data, and reduce measurement errors caused by position deviation or improper fixation of the temperature sensor.

[0097] Step S404, in response to at least one set of the winding temperature test data and the winding preheating current test parameter satisfying the winding operating condition, determining the corresponding test parameter as a target test parameter;

[0098] As an illustrative example, the test parameters that meet the winding operating conditions can be used as effective test parameters and can be used to adjust the preset current calculation model to make it more in line with actual needs. This ensures that the final winding preheating current does not cause the winding to overheat or underheat. Therefore, find at least one set of data (winding temperature and input current) that meets the normal operating requirements of the winding. Based on these experimental data, determine the parameter values (such as correction coefficients, empirical constants, etc.) applicable to the initial formula model.

[0099] In some embodiments, step S404 includes: in response to at least one set of the winding temperature test data being less than a preset coil temperature threshold and the winding preheating current test parameter being less than a preset preheating current threshold, determining the corresponding test parameter as a target test parameter.

[0100] Step S405 : adjusting the initial formula model according to at least one set of the target test parameters to obtain the current calculation model.

[0101] Because the initial model may have deviations, the initial formula model can be modified using actual test parameters. This adjusted preset current calculation model can be applied to different types of compressors, ensuring that the calculated winding preheating current is within the safe range threshold.

[0102] In one exemplary embodiment, thermocouples were attached to the compressor windings to detect coil temperature. Both a fixed current (maximum 8A, reduced accordingly if the temperature exceeded) and an adaptively calculated current were used in tests at ambient temperatures of -20°C, -5°C, 0°C, and 5°C. The test duration was set to 8 minutes, and the winding operating conditions were set to: preheat when the winding temperature test data was <80°C; and the winding preheat current test parameter was ≤9A. Table 1 shows the following:

[0103] Table 1

[0104]

[0105]

[0106] The ambient temperature test parameters, winding preheating current test parameters, and test duration that meet the winding operating conditions can be used as target test parameters. The initial formula model is adjusted using the target test parameters to obtain a preset current calculation model. Data fitting, regression analysis, and other methods can be used to derive a preset current calculation model that is suitable for different compressor models. This current calculation model automatically calculates the appropriate winding preheating current based on the input winding resistance value and the current ambient temperature measured in real time, ensuring a stable and efficient preheating process.

[0107] This embodiment optimizes the preheating current calculation model based on experimental data to ensure that the windings receive the appropriate preheating current under different operating conditions. By testing different compressor models, the target test parameters are adjusted so that the calculation results accurately predict the winding temperature and meet safe operating requirements, thereby improving the stability and service life of the equipment.

[0108] To solve the above technical problems, another technical solution adopted in this application is: a control device for an air-conditioning compressor, the control device for the air-conditioning compressor comprising: an acquisition module for acquiring the winding resistance value and the current ambient temperature of the compressor in response to the air-conditioning compressor satisfying a preset winding preheating condition; a calculation module for determining the winding preheating current based on the winding resistance value and the current ambient temperature through a preset current calculation model; a preheating module for executing a winding preheating program, and applying the winding preheating current to make the winding temperature reach a preset target temperature range.

[0109] See also Figure 5 , Figure 5 This is an exemplary structural block diagram of an electronic device for the control method of the air-conditioning compressor of the present application. Figure 5 As shown, the electronic device 500 of the present application may include a processor 501 and a memory 502, wherein the processor 501 and the memory 502 communicate with each other via a bus. The memory 502 stores program instructions for controlling an air-conditioning compressor. When the program instructions are executed by the processor 501, the processor performs the above-mentioned related method steps to implement a control method for an air-conditioning compressor in the above-mentioned embodiment.

[0110] See also Figure 6 , Figure 6 This is an exemplary structural block diagram of a computer-readable storage medium for the control method of the air-conditioning compressor of the present application. Figure 6 As shown, the computer readable storage medium 600 stores a computer program 601. When the computer program 601 is executed by a processor on a computer, the computer executes the above-mentioned related method steps to implement a control method for an air-conditioning compressor in the above-mentioned embodiment.

[0111] The above solution obtains the compressor's winding resistance value and current ambient temperature in response to the air conditioner compressor meeting preset winding preheating conditions; determines the winding preheating current based on the winding resistance value and current ambient temperature using a preset current calculation model; and executes the winding preheating procedure, applying the winding preheating current to bring the winding temperature to a preset target temperature range. By calculating the compressor's winding preheating current based on the compressor's winding resistance value and current ambient temperature when the compressor meets the winding preheating conditions, the system is compatible with compressors of different models and accommodates requirements at different ambient temperatures, improving compressor reliability and lifespan while ensuring a satisfactory preheating effect.

[0112] In the several embodiments provided in this application, it should be understood that the disclosed methods, electronic devices and storage media can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0113] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of this embodiment.

[0114] In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The above-mentioned integrated units may be implemented in the form of hardware or software functional units.

[0115] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the control method of the air-conditioning compressor described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0116] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling an air-conditioning compressor, characterized in that: The control method of the air-conditioning compressor includes: In response to a compressor of the air conditioner meeting a preset winding preheating condition, obtaining a winding resistance value and a current ambient temperature of the compressor; Based on the winding resistance value and the current ambient temperature, determining the winding preheating current through a preset current calculation model; The winding preheating procedure is executed to make the winding temperature reach a preset target temperature range by applying the winding preheating current.

2. The control method of the air-conditioning compressor according to claim 1, characterized in that: The step of determining the winding preheating current by a preset current calculation model based on the winding resistance value and the current ambient temperature includes: Calculating a first sum of the winding resistance and a first constant, a second sum of a product of the current ambient temperature and a second constant and a third constant, and a first product of the winding resistance and a fourth constant; multiplying the first sum value by the second sum value to obtain a second product value; The second product value is divided by the first product value, and the quotient of the division is used as the winding preheating current.

3. The control method of the air-conditioning compressor according to claim 1, characterized in that: The method of determining the winding preheating current based on the winding resistance value and the current ambient temperature by using a preset current calculation model includes: Establish an initial formula model; determining a plurality of different models of test compressors and winding operating conditions of the test compressors; Performing a winding preheating test using multiple sets of different test parameters to obtain winding temperature test data for each test compressor under each set of the test parameters; wherein the test parameters include at least one of an ambient temperature test parameter, a winding preheating current test parameter, and a test duration; In response to at least one set of the winding temperature test data and the winding preheating current test parameter satisfying the winding operating condition, determining the corresponding test parameter as a target test parameter; The initial formula model is adjusted according to at least one set of the target test parameters to obtain the current calculation model.

4. The control method of the air-conditioning compressor according to claim 3, characterized in that: In response to at least one set of the winding temperature test data and the winding preheating current test parameter satisfying the winding operating condition, determining the corresponding test parameter as a target test parameter includes: In response to at least one set of the winding temperature test data being less than a preset coil temperature threshold, and the winding preheating current test parameter being less than a preset preheating current threshold, the corresponding test parameter is determined as a target test parameter.

5. The control method of the air-conditioning compressor according to claim 3, characterized in that: The method of performing a winding preheating test using multiple sets of different test parameters to obtain winding temperature test data of each test compressor under each set of test parameters includes: Binding the test compressor to a temperature sensor; A winding preheating test is performed using multiple groups of different test parameters, and winding temperature test data of the test compressor corresponding to each group is obtained through the temperature sensor.

6. The control method of the air-conditioning compressor according to claim 1, characterized in that: The step of obtaining the winding resistance value and the current ambient temperature of the compressor in response to the compressor of the air conditioner meeting a preset winding preheating condition comprises: In response to the compressor starting failure, a winding resistance value and a current ambient temperature of the compressor are obtained.

7. The control method of the air-conditioning compressor according to claim 1, characterized in that: The winding preheating procedure is executed by applying the winding preheating current so that the winding temperature reaches a preset target temperature range, and then includes: applying a preset test current to the compressor to detect the starting resistance of the compressor; The preheating effect of the winding preheating current is obtained according to the starting resistance, and whether to restart the compressor is determined according to the preheating effect.

8. A control device for an air-conditioning compressor, characterized in that: The control device of the air-conditioning compressor includes: an acquisition module, configured to acquire a winding resistance value and a current ambient temperature of the compressor in response to the compressor of the air conditioner satisfying a preset winding preheating condition; a calculation module, configured to determine a winding preheating current based on the winding resistance value and the current ambient temperature using a preset current calculation model; The preheating module is used to execute the winding preheating program and make the winding temperature reach a preset target temperature range by applying the winding preheating current.

9. An electronic device, characterized in that: The electronic device comprises: a memory for storing executable program code; A processor is configured to call and run the executable program code from the memory, so that the electronic device executes the air-conditioning compressor control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the control method of the air-conditioning compressor according to any one of claims 1 to 7 is implemented.

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