Inductance parameter adjusting method and device of air conditioner compressor and air conditioner controller

Abstract

The invention discloses an inductance parameter adjusting method and device of an air conditioner compressor and an air conditioner controller, and the method comprises the steps that under the condition that the air conditioner compressor is in a heavy load operation working condition, the air conditioner compressor is controlled to operate on the basis of determined current inductance parameters, the outdoor environment temperature during operation of the air conditioner compressor meets the preset high-temperature environment condition; and under the condition that the air conditioner compressor does not trigger the driving fault, if the air conditioner compressor triggers high-temperature shutdown protection, the phase current and the current inductance parameter of the air conditioner compressor are obtained, and under the condition that the current inductance parameter is reduced, the air conditioner compressor is controlled to operate repeatedly. And determining a final inductance parameter of the air conditioner compressor according to the obtained phase current and the current inductance parameter until the current inductance parameter of the air conditioner compressor meets the preset inductance parameter range. According to the method, the inductance parameter meeting the reliable operation standard can be automatically adjusted, the inductance parameter precision is high, the labor cost is saved, and the efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an inductance parameter adjustment method for an air conditioner compressor, a computer-readable storage medium, an air conditioner controller, and an inductance parameter adjustment device for an air conditioner compressor. Background Art

[0002] The compressor is an important component of air conditioning and refrigeration. The compressor compresses the gas to provide power for refrigeration. In the related technology, the newly developed air conditioning compressor drive control parameters are adjusted by manually rewriting the default parameters in the memory or operating the host computer in an experimental environment. However, the drive control algorithm based on the compressor motor model relies on the accuracy of the motor specification parameters. When the motor parameters provided by the manufacturer deviate, the control parameters need to be manually adjusted according to the test results, which is inefficient. In addition, in position sensorless control, the motor q-axis inductance is an important parameter for rotor position estimation and current closed-loop control. It varies with the current size and requires high control accuracy for high-temperature and low-frequency operation. The parameter accuracy obtained by manual adjustment is difficult to meet the standard. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose an inductance parameter adjustment method for an air-conditioning compressor, which can utilize the characteristics of inductance changing with current to automatically adjust the inductance parameter of the air-conditioning compressor during the operation of the air-conditioning compressor, adjust the inductance parameter to meet the reliable operation standard, and the inductance parameter has high accuracy, saves labor costs, and improves efficiency.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] A third objective of the present invention is to provide an air conditioning controller.

[0006] A fourth objective of the present invention is to provide an inductance parameter adjustment device for an air-conditioning compressor.

[0007] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a method for adjusting the inductance parameters of an air-conditioning compressor, the method comprising: when the air-conditioning compressor is in a heavy-load operating condition, controlling the operation of the air-conditioning compressor based on a determined current inductance parameter, wherein the outdoor ambient temperature when the air-conditioning compressor is operating meets a preset high-temperature ambient condition; when the air-conditioning compressor does not trigger a drive fault, if the air-conditioning compressor triggers a high-temperature shutdown protection, obtaining the phase current and current inductance parameter of the air-conditioning compressor, and controlling the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and determining the final inductance parameter of the air-conditioning compressor based on the obtained phase current and current inductance parameter.

[0008] According to the inductance parameter adjustment method of the air-conditioning compressor of the embodiment of the present invention, under high temperature environment conditions, the air-conditioning compressor is controlled to be in a heavy-load operating condition, and the operation of the air-conditioning compressor is controlled based on the determined current inductance parameter. When the air-conditioning compressor does not trigger a drive fault, if the air-conditioning compressor triggers high-temperature shutdown protection, the phase current and current inductance parameter of the air-conditioning compressor are obtained, and the air-conditioning compressor is controlled to repeat the operation while reducing the current inductance parameter, until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and the final inductance parameter of the air-conditioning compressor is determined according to the obtained phase current and current inductance parameter. Therefore, the method can utilize the inductance variation characteristics with current to realize automatic adjustment of the inductance parameter of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameter to meet the reliable operation standard, and the inductance parameter has high accuracy, saves labor costs, and improves efficiency.

[0009] In addition, the inductance parameter adjustment method of the air-conditioning compressor according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to an embodiment of the present invention, before controlling the operation of the air-conditioning compressor based on the determined current inductance parameter, the air-conditioning compressor is put into a heavy-load operating condition by reducing the rotation speed of the air-conditioning outdoor fan.

[0011] According to an embodiment of the present invention, when the outdoor ambient temperature when the air-conditioning compressor is running is greater than or equal to a first preset temperature, it is determined that the outdoor ambient temperature when the air-conditioning compressor is running meets a preset high temperature ambient condition.

[0012] According to an embodiment of the present invention, when the reduced inductance parameter is less than or equal to a preconfigured inductance parameter threshold, it is determined that the current inductance parameter of the air-conditioning compressor satisfies a preset inductance parameter range.

[0013] According to an embodiment of the present invention, the inductance parameter threshold is configured according to an initial inductance parameter of the air-conditioning compressor.

[0014] According to one embodiment of the present invention, when the air-conditioning compressor triggers a driving fault, the method further includes: reducing the current inductance parameter, and when the reduced inductance parameter is greater than a pre-configured inductance parameter threshold, controlling the air-conditioning compressor to repeat operation according to the reduced inductance parameter.

[0015] According to one embodiment of the present invention, the final inductance parameter of the air-conditioning compressor is determined based on the acquired phase current and the current inductance parameter, including: determining the minimum phase current based on the acquired phase current; and using the current inductance parameter corresponding to the minimum phase current as the final inductance parameter.

[0016] To achieve the above objectives, a second embodiment of the present invention proposes a computer-readable storage medium on which an inductance parameter adjustment program for an air-conditioning compressor is stored. When the program is executed by a processor, the above-mentioned inductance parameter adjustment method for an air-conditioning compressor is implemented.

[0017] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned method for adjusting the inductance parameters of the air-conditioning compressor, it is possible to utilize the characteristics of inductance changing with current to automatically adjust the inductance parameters of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameters to meet the reliable operation standards, and the inductance parameters are highly accurate, and labor costs are saved and efficiency is improved.

[0018] To achieve the above-mentioned purpose, the third aspect of the present invention proposes an air-conditioning controller, comprising: a memory, a processor, and an inductance parameter adjustment program for an air-conditioning compressor stored in the memory and executable on the processor, wherein when the processor executes the program, the above-mentioned inductance parameter adjustment method for the air-conditioning compressor is implemented.

[0019] The air-conditioning controller according to the embodiment of the present invention, through the above-mentioned inductance parameter adjustment method of the air-conditioning compressor, can utilize the characteristics of inductance changing with current to realize automatic adjustment of the inductance parameters of the air-conditioning compressor during the operation of the air-conditioning controller, and adjust the inductance parameters that meet the reliable operation standards. The inductance parameters are highly accurate, and labor costs are saved and efficiency is improved.

[0020] To achieve the above-mentioned purpose, the fourth aspect of the embodiment of the present invention proposes an inductance parameter adjustment device for an air-conditioning compressor, comprising: a control module, used to control the operation of the air-conditioning compressor based on a determined current inductance parameter when the air-conditioning compressor is in a heavy-load operating condition, wherein the outdoor ambient temperature when the air-conditioning compressor is operating meets the preset high-temperature ambient condition; an acquisition module, used to acquire the phase current and current inductance parameter of the air-conditioning compressor if the air-conditioning compressor triggers high-temperature shutdown protection when the air-conditioning compressor does not trigger a drive fault; the control module is also used to control the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and determine the final inductance parameter of the air-conditioning compressor based on the acquired phase current and current inductance parameter.

[0021] According to the inductance parameter adjustment device of the air-conditioning compressor of the embodiment of the present invention, the control module controls the operation of the air-conditioning compressor based on the determined current inductance parameter under high temperature environment conditions and when the air-conditioning compressor is in a heavy-load operation condition, and the acquisition module acquires the phase current and current inductance parameter of the air-conditioning compressor if the air-conditioning compressor triggers the high-temperature shutdown protection when the air-conditioning compressor does not trigger the driving fault; the control module controls the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and determines the final inductance parameter of the air-conditioning compressor based on the acquired phase current and current inductance parameter. Thus, the device can utilize the inductance variation characteristics with current to realize automatic adjustment of the inductance parameter of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameter to meet the reliable operation standard, and the inductance parameter has high accuracy, saves labor costs, and improves efficiency.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of an inductance parameter adjustment method of an air-conditioning compressor according to an embodiment of the present invention;

[0024] Figure 2 is a graph showing changes in inductance of an air-conditioning compressor with current according to an embodiment of the present invention;

[0025] Figure 3 is a flow chart of an inductance parameter adjustment method of an air-conditioning compressor according to an embodiment of the present invention;

[0026] Figure 4 is a block diagram of an air-conditioning controller according to an embodiment of the present invention;

[0027] Figure 5 4 is a block diagram of an inductance parameter adjustment device for an air-conditioning compressor according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following describes an inductance parameter adjustment method for an air-conditioning compressor, a computer-readable storage medium, an air-conditioning controller, and an inductance parameter adjustment device for an air-conditioning compressor proposed in embodiments of the present invention with reference to the accompanying drawings.

[0030] Figure 1 The figure is a flow chart of a method for adjusting inductance parameters of an air-conditioning compressor according to an embodiment of the present invention.

[0031] like Figure 1 As shown, the inductance parameter adjustment method of the air-conditioning compressor according to the embodiment of the present invention may include the following steps:

[0032] S1, when the air-conditioning compressor is in a heavy-load operating condition, the air-conditioning compressor is controlled to operate based on the determined current inductance parameter, wherein the outdoor ambient temperature when the air-conditioning compressor is operating meets a preset high-temperature ambient condition. The preset high-temperature ambient condition can be calibrated according to actual needs.

[0033] S2, when the air-conditioning compressor does not trigger a driving fault, if the air-conditioning compressor triggers high-temperature shutdown protection, the phase current and current inductance parameter of the air-conditioning compressor are obtained, and the air-conditioning compressor is controlled to repeatedly run while reducing the current inductance parameter, until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and the final inductance parameter of the air-conditioning compressor is determined according to the obtained phase current and current inductance parameter. The preset inductance parameter range can be calibrated according to the actual situation of the air conditioner.

[0034] Specifically, after the air conditioner is turned on, the air conditioner controller controls the air conditioner compressor to operate with the initial inductance parameters, and samples the outdoor ambient temperature through the temperature detection device to obtain the outdoor ambient temperature of the air conditioner compressor, and detects the operating frequency of the compressor through the frequency detection device, and detects the phase current of the compressor through the current detection device. The inductance parameters usually change with the change of the phase current, and the inductance parameters include the direct-axis inductance Ld and the quadrature-axis inductance Lq. The corresponding relationship between the phase current size and the direct-axis inductance Ld and the quadrature-axis inductance Lq is stored in the air conditioner controller. Figure 2 The figure shows the curve of the change of inductance of a compressor with current. Figure 2 It can be seen that the direct-axis inductance Ld changes less with the phase current, and the quadrature-axis inductance Lq changes more with the phase current. Therefore, in the embodiment of the present invention, adjusting the inductance parameter is adjusting the quadrature-axis inductance Lq.

[0035] Specifically, the air conditioner performs cooling when the outdoor ambient temperature meets the preset high temperature ambient condition. During the operation of the air conditioner, the air conditioner compressor is placed in a heavy load operation condition by reducing the speed of the air conditioner outdoor fan and other means. The air conditioner controller determines the current inductance parameter according to the current phase current of the air conditioner compressor to control the operation of the air conditioner compressor. As the fan speed is reduced, the temperature of the box of the air conditioner outdoor unit continues to rise, and the air conditioner compressor gradually runs to the limit load of the air conditioner compressor at a low frequency of about 25Hz. When the air conditioner compressor runs to the limit load, if the air conditioner compressor triggers the high temperature shutdown protection without triggering the drive fault, the air conditioner controller obtains the phase current of the air conditioner compressor and the corresponding current inductance parameter and records it, and then reduces the inductance parameter to control the air conditioner compressor to continue to run, so that the air conditioner compressor continues to run gradually to the limit load of the air conditioner compressor at a low frequency of about 25Hz until the air conditioner compressor triggers the high temperature shutdown protection. The air conditioner controller obtains the phase current of the air conditioner compressor and the corresponding current inductance parameter at this time and records it, and continues to reduce the current inductance parameter, and controls the air conditioner compressor to repeat the above process until the current inductance parameter of the air conditioner compressor meets the preset inductance parameter range, and then stops adjusting the inductance parameter. All phase currents and inductance parameters corresponding to the phase currents recorded by the air conditioning controller are inductance parameters that enable the air conditioning compressor to operate reliably. The air conditioning controller can select a suitable current inductance parameter from all recorded phase currents and current inductance parameters as the final inductance parameter.

[0036] Therefore, the method of the embodiment of the present invention aims at the problem that the q-axis inductance of the compressor has high control accuracy requirements and is difficult to manually adjust the parameters when operating at high temperature and low frequency. The air-conditioning compressor is made to reach the extreme load state under outdoor high temperature conditions, and then the control parameters that meet the reliable operation standards are automatically adjusted according to the change law of the compressor inductance. The characteristic of inductance changing with current is utilized to realize automatic parameter adjustment during the operation of the air-conditioning, thereby saving labor costs and improving efficiency.

[0037] According to an embodiment of the present invention, before controlling the operation of the air-conditioning compressor based on the determined current inductance parameter, the air-conditioning compressor is placed in a heavy-load operating condition by reducing the rotation speed of the air-conditioning outdoor fan.

[0038] Specifically, the air conditioner controller can reduce a given outdoor fan speed to increase the load of the air conditioner, simulating the heavy-load operation of the air conditioner compressor so that the air conditioner compressor is in a heavy-load operation condition. The air conditioner controller can set the outdoor fan speed to zero at the lowest.

[0039] According to one embodiment of the present invention, when the outdoor ambient temperature when the air conditioner compressor is running is greater than or equal to a first preset temperature, it is determined that the outdoor ambient temperature when the air conditioner compressor is running meets the preset high temperature environment condition. The first preset temperature can be calibrated as needed, for example, the first preset temperature can be 55°C.

[0040] That is to say, when the outdoor ambient temperature is greater than or equal to 55°C, it means that the operating conditions of the air-conditioning compressor meet the preset high temperature ambient conditions.

[0041] According to one embodiment of the present invention, when the reduced inductance parameter is less than or equal to a pre-configured inductance parameter threshold, it is determined that the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range. The inductance parameter threshold is configured according to the initial inductance parameter of the air-conditioning compressor. For example, the inductance parameter threshold may be 50% of the initial inductance parameter of the air-conditioning compressor. The initial inductance parameter of the air-conditioning compressor may be obtained from the compressor specification.

[0042] Specifically, when the air-conditioning compressor runs to the limit load, without triggering the drive fault, if the air-conditioning compressor triggers the high-temperature shutdown protection, the air-conditioning controller obtains and records the phase current and corresponding current inductance parameters of the air-conditioning compressor, and then reduces the inductance parameters to control the air-conditioning compressor to continue running, so that the air-conditioning compressor continues to run at a low frequency of about 25 Hz and gradually reaches the limit load of the air-conditioning compressor until the air-conditioning compressor triggers the high-temperature shutdown protection. The air-conditioning controller obtains and records the phase current and corresponding current inductance parameters of the air-conditioning compressor at this time, and continues to reduce the current inductance parameters to control the air-conditioning compressor to repeat the above process until the current inductance parameter of the air-conditioning compressor is less than or equal to 50% of the initial inductance parameter of the air-conditioning compressor, determines that the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and stops adjusting the inductance parameter.

[0043] According to one embodiment of the present invention, when the air-conditioning compressor triggers a driving fault, the above method also includes: reducing the current inductance parameter, and when the reduced inductance parameter is greater than a pre-configured inductance parameter threshold, controlling the air-conditioning compressor to repeat operation according to the reduced inductance parameter.

[0044] Specifically, in the process of adjusting the inductance parameter, due to the unreasonable setting of the adjustment parameter, the driving current of the air-conditioning compressor will fluctuate greatly, thereby causing the air-conditioning compressor to run out of control and triggering a driving fault. When the adjustment compressor triggers a driving fault, the air-conditioning controller can continue to reduce the current inductance parameter based on the current inductance parameter according to the characteristic that the inductance decreases with the increase of the current, and when the reduced inductance parameter is greater than 50% of the initial inductance parameter, the air-conditioning controller controls the air-conditioning compressor to continue to operate according to the reduced inductance parameter, so that the air-conditioning compressor continues to operate at a low frequency of about 25Hz gradually to the limit load of the air-conditioning compressor until the air-conditioning compressor triggers the high-temperature shutdown protection, and the air-conditioning controller obtains the phase current of the air-conditioning compressor and the corresponding current inductance parameter at this time and records them, and continues to reduce the current inductance parameter, and controls the air-conditioning compressor to repeat the above process until the current inductance parameter of the air-conditioning compressor is less than or equal to 50% of the initial inductance parameter of the air-conditioning compressor, and determines that the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and stops adjusting the inductance parameter.

[0045] According to one embodiment of the present invention, the final inductance parameter of the air-conditioning compressor is determined according to the acquired phase current and the current inductance parameter, including: determining the minimum phase current according to the acquired phase current; and using the current inductance parameter corresponding to the minimum phase current as the final inductance parameter.

[0046] Specifically, when the current inductance parameter of the air-conditioning compressor is less than or equal to 50% of the initial inductance parameter of the air-conditioning compressor, it is determined that the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and the adjustment of the inductance parameter is stopped. Since all the phase currents and the inductance parameters corresponding to the phase currents recorded by the air-conditioning controller are inductance parameters that enable the air-conditioning compressor to operate reliably, the air-conditioning controller obtains the minimum phase current from all the recorded phase currents, and obtains the current inductance parameter corresponding to the minimum phase current, and uses it as the final inductance parameter of the air-conditioning compressor.

[0047] As a specific example, Figure 3 As shown, the method for adjusting the inductance parameter of the air-conditioning compressor may include the following steps:

[0048] Step S201, controlling the air conditioning compressor to operate with a given initial inductance.

[0049] Step S202, reducing the rotation speed of the air conditioner outdoor fan to put the air conditioner compressor in a heavy-load operating condition.

[0050] Step S203, obtaining the current inductance parameter of the air-conditioning compressor.

[0051] Step S204, determine whether the current inductance parameter of the air conditioner compressor is greater than 50% of the initial inductance parameter. If yes, execute step S205; if not, execute step S206.

[0052] Step S205 , controlling the air conditioning compressor to operate at a low frequency based on the determined current inductance parameter in an outdoor environment with a temperature greater than or equal to 55° C.

[0053] Step S206, determining whether the air-conditioning compressor triggers a driving fault. If yes, executing step S207; if no, executing step S208.

[0054] Step S207, reducing the current inductance parameter.

[0055] Step S208, controlling the air conditioning compressor to operate at a low frequency until high temperature shutdown protection is triggered.

[0056] Step S209, obtaining the phase current and current inductance parameters of the air-conditioning compressor.

[0057] Step S210, reducing the current inductance parameter.

[0058] Step S211, determining whether the current inductance parameter of the air-conditioning compressor is greater than 50% of the initial inductance parameter. If yes, return to step S205; if no, execute step S212.

[0059] Step S212, determining the minimum phase current according to the acquired phase current.

[0060] Step S213: taking the current inductance parameter corresponding to the minimum phase current as the final inductance parameter.

[0061] Step S214, ending the inductance parameter adjustment.

[0062] In summary, according to the inductance parameter adjustment method of the air-conditioning compressor of the embodiment of the present invention, under high temperature environment conditions, the air-conditioning compressor is controlled to be in a heavy-load operating condition, and the operation of the air-conditioning compressor is controlled based on the determined current inductance parameter. When the air-conditioning compressor does not trigger a drive fault, if the air-conditioning compressor triggers high-temperature shutdown protection, the phase current and current inductance parameter of the air-conditioning compressor are obtained, and the air-conditioning compressor is controlled to repeat the operation while reducing the current inductance parameter, until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and the final inductance parameter of the air-conditioning compressor is determined according to the obtained phase current and current inductance parameter. Therefore, the method can utilize the inductance variation characteristics with current to realize automatic adjustment of the inductance parameter of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameter to meet the reliable operation standard, and the inductance parameter has high accuracy, saves labor costs, and improves efficiency.

[0063] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0064] The computer-readable storage medium of the embodiment of the present invention stores an inductance parameter adjustment program for an air-conditioning compressor, and when the program is executed by a processor, the inductance parameter adjustment method for the air-conditioning compressor is implemented.

[0065] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned method for adjusting the inductance parameters of the air-conditioning compressor, it is possible to utilize the characteristics of inductance changing with current to automatically adjust the inductance parameters of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameters to meet the reliable operation standards, and the inductance parameters are highly accurate, and labor costs are saved and efficiency is improved.

[0066] Corresponding to the above embodiment, the present invention further proposes an air-conditioning controller.

[0067] Figure 4 4 is a block diagram of an air-conditioning controller according to an embodiment of the present invention.

[0068] like Figure 4 As shown, the air-conditioning controller 200 of the embodiment of the present invention includes: a memory 210, a processor 220, and an inductance parameter adjustment program of the air-conditioning compressor stored in the memory 210 and executable on the processor 220. When the processor 220 executes the program, the inductance parameter adjustment method of the air-conditioning compressor described above is implemented.

[0069] The air-conditioning controller according to the embodiment of the present invention, through the above-mentioned inductance parameter adjustment method of the air-conditioning compressor, can utilize the characteristics of inductance changing with current to realize automatic adjustment of the inductance parameters of the air-conditioning compressor during the operation of the air-conditioning controller, and adjust the inductance parameters that meet the reliable operation standards. The inductance parameters are highly accurate, and labor costs are saved and efficiency is improved.

[0070] Corresponding to the above-mentioned embodiment, the present invention further proposes an inductance parameter adjustment device for an air-conditioning compressor.

[0071] Figure 5 4 is a block diagram of an inductance parameter adjustment device for an air-conditioning compressor according to an embodiment of the present invention.

[0072] like Figure 5 As shown, the inductance parameter adjustment device 100 of the air-conditioning compressor according to the embodiment of the present invention may include: a control module 110 and an acquisition module 120 .

[0073] The control module 110 is used to control the operation of the air-conditioning compressor based on the determined current inductance parameter when the air-conditioning compressor is in a heavy-load operating condition, wherein the outdoor ambient temperature when the air-conditioning compressor is operating satisfies a preset high-temperature ambient condition. The acquisition module 120 is used to acquire the phase current and current inductance parameter of the air-conditioning compressor if the air-conditioning compressor triggers high-temperature shutdown protection when the air-conditioning compressor does not trigger a drive fault. The control module 110 is also used to control the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor satisfies a preset inductance parameter range, and then determine the final inductance parameter of the air-conditioning compressor based on the acquired phase current and current inductance parameter.

[0074] According to an embodiment of the present invention, before controlling the operation of the air-conditioning compressor based on the determined current inductance parameter, the control module 110 reduces the speed of the air-conditioning outdoor fan to put the air-conditioning compressor in a heavy-load operation condition.

[0075] According to an embodiment of the present invention, the control module 110 determines that the outdoor ambient temperature when the air-conditioning compressor is running meets the preset high temperature environment condition when the outdoor ambient temperature when the air-conditioning compressor is running is greater than or equal to the first preset temperature.

[0076] According to an embodiment of the present invention, the control module 110 determines that the current inductance parameter of the air-conditioning compressor satisfies a preset inductance parameter range when the reduced inductance parameter is less than or equal to a pre-configured inductance parameter threshold.

[0077] According to an embodiment of the present invention, the inductance parameter threshold is configured according to an initial inductance parameter of the air-conditioning compressor.

[0078] According to one embodiment of the present invention, when the air-conditioning compressor triggers a driving fault, the control module 110 is also used to reduce the current inductance parameter, and when the reduced inductance parameter is greater than a pre-configured inductance parameter threshold, control the air-conditioning compressor to repeat operation according to the reduced inductance parameter.

[0079] According to one embodiment of the present invention, the control module 110 determines the final inductance parameter of the air-conditioning compressor based on the acquired phase current and the current inductance parameter, and is specifically used to determine the minimum phase current based on the acquired phase current; and use the current inductance parameter corresponding to the minimum phase current as the final inductance parameter.

[0080] It should be noted that for details not disclosed in the inductance parameter adjustment device for the air-conditioning compressor in the embodiment of the present invention, please refer to the details disclosed in the inductance parameter adjustment method for the air-conditioning compressor in the embodiment of the present invention, and the details will not be repeated here.

[0081] According to the inductance parameter adjustment device of the air-conditioning compressor of the embodiment of the present invention, the control module controls the operation of the air-conditioning compressor based on the determined current inductance parameter under high temperature environment conditions and when the air-conditioning compressor is in a heavy-load operation condition, and the acquisition module acquires the phase current and current inductance parameter of the air-conditioning compressor if the air-conditioning compressor triggers the high-temperature shutdown protection when the air-conditioning compressor does not trigger the driving fault; the control module controls the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and determines the final inductance parameter of the air-conditioning compressor based on the acquired phase current and current inductance parameter. Thus, the device can utilize the inductance variation characteristics with current to realize automatic adjustment of the inductance parameter of the air-conditioning compressor during the operation of the air-conditioning compressor, and adjust the inductance parameter to meet the reliable operation standard, and the inductance parameter has high accuracy, saves labor costs, and improves efficiency.

[0082] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0083] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0085] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0086] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for adjusting the inductance parameters of an air-conditioning compressor, characterized in that: The method comprises: When the air-conditioning compressor is in a heavy-load operating condition, controlling the air-conditioning compressor to operate based on the determined current inductance parameter, wherein the outdoor ambient temperature when the air-conditioning compressor is operating satisfies a preset high-temperature ambient condition; When the air-conditioning compressor does not trigger a driving fault, if the air-conditioning compressor triggers high-temperature shutdown protection, the phase current and current inductance parameter of the air-conditioning compressor are obtained, and while reducing the current inductance parameter, the air-conditioning compressor is controlled to repeatedly run until the current inductance parameter of the air-conditioning compressor meets the preset inductance parameter range, and the final inductance parameter of the air-conditioning compressor is determined according to the obtained phase current and current inductance parameter.

2. The method according to claim 1, characterized in that Before controlling the operation of the air-conditioning compressor based on the determined current inductance parameter, the air-conditioning compressor is placed in a heavy-load operating condition by reducing the rotation speed of the air-conditioning outdoor fan.

3. The method according to claim 1, characterized in that When the outdoor environment temperature when the air-conditioning compressor is running is greater than or equal to a first preset temperature, it is determined that the outdoor environment temperature when the air-conditioning compressor is running meets a preset high temperature environment condition.

4. The method according to any one of claims 1 to 3, characterized in that When the reduced inductance parameter is less than or equal to a pre-configured inductance parameter threshold, it is determined that the current inductance parameter of the air-conditioning compressor meets a preset inductance parameter range.

5. The method according to claim 4, characterized in that The inductance parameter threshold is configured according to an initial inductance parameter of the air-conditioning compressor.

6. The method according to claim 4, characterized in that In the event that the air conditioner compressor triggers a driving failure, the method further includes: The current inductance parameter is reduced, and when the reduced inductance parameter is greater than a preconfigured inductance parameter threshold, the air-conditioning compressor is controlled to repeatedly operate according to the reduced inductance parameter.

7. The method according to any one of claims 1 to 3, characterized in that Determining a final inductance parameter of the air-conditioning compressor according to the acquired phase current and the current inductance parameter includes: determining a minimum phase current according to the acquired phase current; The current inductance parameter corresponding to the minimum phase current is used as the final inductance parameter.

8. A computer-readable storage medium, characterized in that: An inductance parameter adjustment program for an air-conditioning compressor is stored thereon, and when the program is executed by a processor, an inductance parameter adjustment method for an air-conditioning compressor according to any one of claims 1-7 is implemented.

9. An air conditioning controller, characterized in that: include: A memory, a processor, and an inductance parameter adjustment program for an air-conditioning compressor stored in the memory and executable on the processor. When the processor executes the program, the inductance parameter adjustment method for an air-conditioning compressor according to any one of claims 1 to 7 is implemented.

10. An inductance parameter adjustment device for an air-conditioning compressor, characterized in that: include: a control module, configured to control the operation of the air-conditioning compressor based on the determined current inductance parameter when the air-conditioning compressor is in a heavy-load operating condition, wherein the outdoor ambient temperature when the air-conditioning compressor is operating satisfies a preset high-temperature ambient condition; an acquisition module, configured to acquire a phase current and a current inductance parameter of the air-conditioning compressor if the air-conditioning compressor triggers a high-temperature shutdown protection when the air-conditioning compressor does not trigger a driving fault; The control module is also used to control the air-conditioning compressor to repeatedly operate while reducing the current inductance parameter until the current inductance parameter of the air-conditioning compressor meets a preset inductance parameter range, and determine the final inductance parameter of the air-conditioning compressor based on the acquired phase current and the current inductance parameter.

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