Control method, device, electronic equipment, magnetic levitation compressor and storage medium

Abstract

The present application provides a control method, device, electronic device, magnetic levitation compressor and storage medium. During the operation of the magnetic levitation compressor, the target parameter of the magnetic levitation compressor is obtained; when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter, it is determined whether the maintenance time of the target parameter reaches a first preset time; when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than a shutdown number threshold, the magnetic levitation compressor is controlled to shut down and automatically restart, which can protect the magnetic levitation compressor while reducing the number of manual restarts by users, thereby improving the user experience.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic levitation compressor control, and in particular to a control method, device, electronic equipment, magnetic levitation compressor and storage medium. Background Art

[0002] In order to protect the magnetic levitation compressor to operate in a safe and stable state, the fault protection of the magnetic levitation compressor is usually designed from the control logic level, so that the compressor can make real-time judgments on its own operating status (such as poor accuracy, overvoltage, overcurrent, communication abnormalities, etc.). When the magnetic levitation compressor detects a fault, it will shut down urgently, which can greatly increase the service life of the magnetic levitation compressor.

[0003] However, for magnetic levitation compressors as commodities, user experience is equally important. When the magnetic levitation compressor fails and stops, the user needs to restart it manually, which greatly affects the user experience. Summary of the invention

[0004] In response to the above problems, the present application provides a control method, device, electronic device, magnetic levitation compressor and storage medium, which can protect the magnetic levitation compressor while reducing the need for users to perform manual restarts, thereby improving the user experience.

[0005] The present application provides a control method, including:

[0006] During the operation of the magnetic levitation compressor, obtaining target parameters of the magnetic levitation compressor;

[0007] When the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter, determining whether the maintenance time of the target parameter reaches a first preset time;

[0008] When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and automatically restart, wherein the first protection threshold is less than the second protection threshold, the first preset time is less than the second preset time, and when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

[0009] In some embodiments, the method further comprises:

[0010] When the target parameter is greater than a second protection threshold corresponding to the target parameter, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0011] In some embodiments, the method further comprises:

[0012] When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0013] In some embodiments, the method further comprises:

[0014] When the maintenance time of the target parameter is less than the first preset time, the magnetic levitation compressor is controlled to continue running.

[0015] In some embodiments, the target parameter includes: rotor operation accuracy or bearing coil current, and the method further includes:

[0016] When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, an alarm signal is output.

[0017] In some embodiments, when the target parameter is the bearing coil current, controlling the magnetic levitation compressor to stop and automatically restart includes:

[0018] Controlling the suspension compressor to stop;

[0019] detecting a reference position of a rotor of the suspension compressor;

[0020] Determining a position difference value between the reference position and a set reference position;

[0021] When the position difference value is less than a position difference threshold, the suspension compressor is controlled to automatically restart.

[0022] In some embodiments, the method further comprises:

[0023] When the position difference value is less than a position difference threshold, the suspension compressor is controlled to remain stopped.

[0024] The present application provides a control device, including:

[0025] An acquisition module, used for acquiring target parameters of the magnetic levitation compressor during the operation of the magnetic levitation compressor;

[0026] a determination module, configured to determine whether a maintenance time of the target parameter reaches a first preset time when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter;

[0027] A control module, used for controlling the magnetic levitation compressor to shut down and automatically restart when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within a second preset time is less than a shutdown number threshold, wherein the first protection threshold is less than the second protection threshold, the first preset time is less than the second preset time, and when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

[0028] An embodiment of the present application provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, any one of the control methods is executed.

[0029] An embodiment of the present application provides a magnetic levitation compressor, including: the electronic device described above.

[0030] An embodiment of the present application provides a computer-readable storage medium, which stores a computer program that can be executed by one or more processors and can be used to implement the control method described above.

[0031] The present application provides a control method, device, electronic device, magnetic levitation compressor and storage medium. During the operation of the magnetic levitation compressor, the target parameter of the magnetic levitation compressor is obtained; when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter, it is determined whether the maintenance time of the target parameter reaches a first preset time; when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than a shutdown number threshold, the magnetic levitation compressor is controlled to shut down and automatically restart, which can protect the magnetic levitation compressor while reducing the number of manual restarts by users, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, the present application will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0033] Figure 1 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of an example of operating accuracy provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of an example of coil current provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0038] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0040] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0041] If similar descriptions of "first\second\third" appear in the application documents, the following instructions will be added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0043] Based on the problems existing in the related art, an embodiment of the present application provides a control method, which is applied to electronic devices, such as computers, mobile terminals, etc. The mobile terminals may include mobile phones, tablet computers, etc. In some embodiments, the electronic device may be a controller, an intermediate processor, etc. of a magnetic levitation compressor.

[0044] The functions implemented by the control method provided in the embodiment of the present application can be implemented by calling program codes by a processor of an electronic device, wherein the program codes can be stored in a computer storage medium.

[0045] Embodiment 1

[0046] The present application provides a control method. Figure 1 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, including:

[0047] Step S101, during the operation of the magnetic levitation compressor, obtaining target parameters of the magnetic levitation compressor.

[0048] In the embodiment of the present application, the target parameters may include: rotor operation accuracy and / or bearing coil current.

[0049] In an embodiment of the present application, the electronic device can be connected to the detection module to obtain the target parameters of the magnetic levitation compressor through the detection model. When the target parameter is the bearing coil current, the acquisition module can be a current sensor. When the target parameter is the rotor operation accuracy, the acquisition module can be a position sensor.

[0050] In some embodiments, the electronic device may be connected to an input device, and the target parameters of the magnetic levitation compressor may be input through the input device. The input device may be a mouse, a keyboard, a voice input device, or the like.

[0051] Step S102, when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter, determining whether the maintenance time of the target parameter reaches a first preset time.

[0052] In an embodiment of the present application, when the target parameter is the rotor operation accuracy, the first protection threshold corresponding to the target parameter is the first rotor operation accuracy threshold, and the second protection threshold corresponding to the target parameter is the second rotor operation accuracy threshold.

[0053] In the embodiment of the present application, when the target parameter is the bearing coil current, the first protection threshold corresponding to the target parameter is the first bearing coil current threshold, and the second protection threshold corresponding to the target parameter is the second bearing coil current threshold. That is to say, when the target parameter is the rotor operation accuracy, the rotor operation accuracy threshold is used for comparison, and when the target parameter is the bearing coil current, the bearing coil current threshold is used for comparison.

[0054] In an embodiment of the present application, when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

[0055] In the embodiment of the present application, the maintenance time of the target parameter can be determined, and the maintenance time can be compared with the first preset time to determine whether the maintenance time of the target parameter reaches the first preset time. The first preset time can be configured, and exemplarily, the first preset time can be 3 seconds.

[0056] Step S103, when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, control the magnetic levitation compressor to shut down and automatically restart.

[0057] In the embodiment of the present application, the second preset time length and the shutdown number threshold value can be configured. Exemplarily, the second preset time length can be 1 hour, and the shutdown number threshold value can be 3 times.

[0058] When the target parameter is the rotor operation accuracy, if the maintenance time of the rotor operation accuracy reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, it means that the compressor operation accuracy is too large, but there is usually no fault that affects the bearing accuracy. Therefore, it can be shut down and restarted.

[0059] When the target parameter is the bearing coil current, if the maintenance time of the bearing coil current reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, it means that the bearing coil current is too large at this time, but the bearing coil should not be burned out when the running time is less than the first preset time, so it can be shut down and restarted.

[0060] The present application provides a control method, which obtains the target parameter of the magnetic levitation compressor during its operation; determines whether the maintenance time of the target parameter reaches a first preset time when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter; controls the magnetic levitation compressor to stop and automatically restart when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than a shutdown number threshold, thereby protecting the magnetic levitation compressor and reducing the number of manual restarts by users, thereby improving user experience.

[0061] In some embodiments, after step S101, the method further includes:

[0062] Step S104, when the target parameter is greater than a second protection threshold corresponding to the target parameter, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0063] In an embodiment of the present application, when the target parameter is the rotor operation accuracy, if the target parameter is greater than the second protection threshold corresponding to the target parameter, it means that the operation accuracy is too large, and shaft grinding may occur, causing irreversible damage to the compressor. Therefore, the magnetic levitation compressor is controlled to shut down and cannot be automatically started. An alarm signal can be output, and the user can perform maintenance. After the maintenance, it can be manually started.

[0064] When the target parameter is the bearing coil current, and when the target parameter is greater than the second protection threshold corresponding to the target parameter, it means that the bearing coil current is too large and may burn the bearing coil. Therefore, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0065] In the embodiment of the present application, the magnetic levitation compressor can be overhauled after shutdown, and after the overhaul, it can be manually restarted.

[0066] In some embodiments, when the target parameter is less than a first protection threshold corresponding to the target parameter, it indicates that the magnetic levitation compressor operates normally and continues to operate.

[0067] In some embodiments, after step S102, the method further includes:

[0068] Step S105, when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0069] In the embodiment of the present application, when the target parameter is the rotor operation accuracy, if the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, it means that the magnetic levitation compressor has some faults that affect the bearing accuracy. Therefore, it is necessary to control the magnetic levitation compressor to shut down and cannot be automatically started.

[0070] In an embodiment of the present application, when the target parameter is the bearing coil current, when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, it is judged that some serious faults have occurred in the compressor. Therefore, the magnetic levitation compressor needs to be controlled to shut down and cannot be automatically started.

[0071] In some embodiments, after step S102, the method further includes:

[0072] Step S106: When the maintenance time of the target parameter is less than the first preset time, controlling the magnetic levitation compressor to continue to operate.

[0073] In the embodiment of the present application, when the maintenance time of the target parameter is less than the first preset time, it can be considered that the compressor has not suffered a serious failure, and therefore the magnetic levitation compressor is controlled to continue to operate.

[0074] In some embodiments, while step S103 is being executed, the method further includes:

[0075] Step S107: outputting an alarm signal when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within a second preset time is less than a shutdown number threshold.

[0076] In some embodiments, when the target parameter is the bearing coil current, step S103 can be implemented by the following steps:

[0077] Step S1031, controlling the suspension compressor to stop;

[0078] Step S1032: detecting a reference position of a rotor of the suspension compressor.

[0079] In the embodiment of the present application, the electronic device can be connected to the position sensor for communication, and the reference position of the rotor of the suspension compressor can be detected by the position sensor. In the embodiment of the present application, the reference position of the rotor can be considered as the current position.

[0080] Step S1033: determining a position difference value between the reference position and a set reference position.

[0081] In the embodiment of the present application, the user can set the parameter position.

[0082] In the embodiment of the present application, the reference position and the set reference position can be compared to determine the position difference value.

[0083] Step S1034: When the position difference value is less than the position difference threshold, control the suspension compressor to automatically restart.

[0084] In the embodiment of the present application, the position difference threshold can be configured.

[0085] In some embodiments, after step S1033, the method further includes:

[0086] Step S1035: When the position difference value is less than the position difference threshold, control the suspension compressor to remain stopped.

[0087] Embodiment 2:

[0088] Based on the above-mentioned embodiments, the embodiment of the present application further provides a control method. In the original control strategy, no matter what the cause of the fault is, the compressor will shut down, and the user is required to manually clear the fault and restart. The embodiment of the present application provides a control method, which performs graded processing on the rotor operation accuracy of the magnetic levitation compressor, sets the protection threshold of the bearing coil current, and controls the protection strategy of the compressor according to the different operation accuracy and whether the bearing coil current exceeds the threshold. It not only protects the compressor, but also avoids the user from manually starting the compressor due to a fault, thereby improving the user experience.

[0089] Figure 2 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the method includes:

[0090] When the magnetic levitation compressor is running, analysis is performed based on the real-time monitoring of the rotor operation accuracy and bearing coil current.

[0091] Analysis based on operating accuracy: The operating accuracy is graded and analyzed, and two protection thresholds A1 (the same as the first protection threshold in the above embodiment) and A2 (the same as the second protection threshold in the above embodiment) are set. A1 is less than A2, and the normal operating accuracy of the magnetic levitation compressor should be less than A1. Figure 3 A schematic diagram of an example of operating accuracy provided in an embodiment of the present application, such as Figure 3As shown, if the running accuracy is detected to be greater than A2 during operation (as shown in Example 3 in the figure), the compressor is judged to have too high running accuracy, and the shaft may be worn, causing irreversible damage to the compressor, so that the compressor is in bearing protection and cannot be automatically started. If the running accuracy is detected to be greater than A1 and less than A2 during operation (as shown in Example 2 in the figure), the compressor is judged to have too high running accuracy. If the compressor maintains this accuracy range for 3 seconds, it will shut down and restart, and feedback the bearing protection warning. After three times within 1 hour, the compressor will enter the bearing protection state. At this time, it is judged that the compressor has some faults that affect the bearing accuracy. After shutting down, it will not automatically start up, and manual control is required to start up; if the compressor maintains this accuracy range for less than 3 seconds (as shown in Example 1 in the figure), it is judged that the compressor has not suffered a serious fault. In order to ensure user use, it can keep running without reporting a protection shutdown.

[0092] Taking the bearing coil current as an example for analysis: two current protection thresholds I1 (the same as the first protection threshold in the above embodiment) and I2 (the same as the second protection threshold in the above embodiment) are set, I1 is smaller than I2, and the bearing coil current should be smaller than I1 during normal operation of the magnetic levitation compressor. Figure 4 A schematic diagram of a coil current example provided by an embodiment of the present application, if the bearing coil current is detected to be greater than I2 during operation (such as Example 3 in the figure), it is determined that the bearing coil current is too large, which may burn the bearing coil, causing the compressor to report overcurrent protection and stop, and cannot automatically start. If the bearing coil current is detected to be greater than I1 and less than I2 during operation (such as Example 2 in the figure), it is determined that the bearing coil current is too large. If the bearing coil current lasts for 3 seconds within this range, it will stop and restart and feedback an overcurrent warning. After stopping, the compressor performs a reference position check to detect whether the rotor reference position has changed. If the rotor reference position is significantly different from the set reference position, the compressor will no longer start automatically. If the rotor reference position is almost equal to the set reference position, the compressor will automatically start. After accumulating three overcurrent warnings within 1 hour, the compressor enters the overcurrent protection state. At this time, it is determined that the compressor has some serious faults and will not start automatically after stopping, and manual control is required to start; if the compressor is maintained within this current range for less than 3 seconds (such as Example 1 in the figure), it is determined that the compressor has not suffered a serious fault, and it can keep running to ensure user use without reporting a protection shutdown.

[0093] Embodiment 3

[0094] Based on the foregoing embodiments, an embodiment of the present application provides a control device, and the modules included in the device and the units included in the modules can be implemented by a processor in a computer device; of course, they can also be implemented by a specific logic circuit; in the implementation process, the processor can be a central processing unit (CPU, Central Processing Unit), a microprocessor (MPU, Microprocessor Unit), a digital signal processor (DSP, Digital Signal Processing) or a field programmable gate array (FPGA, Field Programmable Gate Array), etc.

[0095] The present application provides a control device, the control device comprising:

[0096] An acquisition module, used for acquiring target parameters of the magnetic levitation compressor during the operation of the magnetic levitation compressor;

[0097] a determination module, configured to determine whether a maintenance time of the target parameter reaches a first preset time when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter;

[0098] A control module, used for controlling the magnetic levitation compressor to shut down and automatically restart when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within a second preset time is less than a shutdown number threshold, wherein the first protection threshold is less than the second protection threshold, the first preset time is less than the second preset time, and when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

[0099] In some embodiments, the control device is further configured to:

[0100] When the target parameter is greater than a second protection threshold corresponding to the target parameter, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0101] In some embodiments, the control device is further configured to:

[0102] When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

[0103] In some embodiments, the control device is further configured to:

[0104] When the maintenance time of the target parameter is less than the first preset time, the magnetic levitation compressor is controlled to continue running.

[0105] In some embodiments, the target parameter includes: rotor operation accuracy or bearing coil current, and the method further includes:

[0106] When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, an alarm signal is output.

[0107] In some embodiments, when the target parameter is the bearing coil current, controlling the magnetic levitation compressor to stop and automatically restart includes:

[0108] Controlling the suspension compressor to stop;

[0109] detecting a reference position of a rotor of the suspension compressor;

[0110] Determining a position difference value between the reference position and a set reference position;

[0111] When the position difference value is less than a position difference threshold, the suspension compressor is controlled to automatically restart.

[0112] In some embodiments, the control device is further configured to:

[0113] When the position difference value is less than a position difference threshold, the suspension compressor is controlled to remain stopped.

[0114] It should be noted that in the embodiment of the present application, if the above-mentioned control method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiment of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM, Read Only Memory), a disk or an optical disk. In this way, the embodiment of the present application is not limited to any specific combination of hardware and software.

[0115] Accordingly, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps in the control method provided in the above embodiment are implemented.

[0116] Embodiment 4

[0117] An embodiment of the present application provides an electronic device; Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the electronic device 500 includes: a processor 501, at least one communication bus 502, a user interface 503, at least one external communication interface 504, and a memory 505. The communication bus 502 is configured to realize the connection and communication between these components. The user interface 503 may include a control screen, and the external communication interface 504 may include a standard wired interface and a wireless interface. The processor 501 is configured to execute the program of the control method stored in the memory to implement the steps in the control method provided in the above embodiment.

[0118] The description of the above electronic device and storage medium embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the computer device and storage medium embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0119] It should be noted here that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0120] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned sequence numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

[0121] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0122] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the 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 can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components controlled or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0123] The units described above as separate components may or may not be physically separated, and the components controlled by the units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0124] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0125] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read Only Memory), disks or optical disks, etc. Various media that can store program codes.

[0126] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can essentially or in other words, the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for a controller to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0127] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A control method, characterized in that: include: During the operation of the magnetic levitation compressor, obtaining target parameters of the magnetic levitation compressor; When the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter, determining whether the maintenance time of the target parameter reaches a first preset time; When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and automatically restart, wherein the first protection threshold is less than the second protection threshold, the first preset time is less than the second preset time, and when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

2. The method according to claim 1, characterized in that The method further comprises: When the target parameter is greater than a second protection threshold corresponding to the target parameter, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

3. The method according to claim 1, characterized in that The method further comprises: When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is greater than or equal to the shutdown number threshold, the magnetic levitation compressor is controlled to shut down and cannot be automatically started.

4. The method according to claim 1, characterized in that: The method further comprises: When the maintenance time of the target parameter is less than the first preset time, the magnetic levitation compressor is controlled to continue running.

5. The method according to claim 1, characterized in that The target parameters include: rotor operation accuracy or bearing coil current, and the method further includes: When the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within the second preset time is less than the shutdown number threshold, an alarm signal is output.

6. The method according to claim 5, characterized in that When the target parameter is the bearing coil current, controlling the magnetic suspension compressor to stop and automatically restart includes: Controlling the magnetic suspension compressor to stop; Detecting a reference position of a rotor of the magnetic levitation compressor; Determining a position difference value between the reference position and a set reference position; When the position difference value is less than the position difference threshold, the magnetic suspension compressor is controlled to automatically restart.

7. The method according to claim 6, characterized in that The method further comprises: When the position difference value is less than the position difference threshold, the magnetic suspension compressor is controlled to remain stopped.

8. A control device, characterized in that: include: An acquisition module, used for acquiring target parameters of the magnetic levitation compressor during the operation of the magnetic levitation compressor; a determination module, configured to determine whether a maintenance time of the target parameter reaches a first preset time when the target parameter is greater than a first protection threshold corresponding to the target parameter and less than a second protection threshold corresponding to the target parameter; A control module, used for controlling the magnetic levitation compressor to shut down and automatically restart when the maintenance time of the target parameter reaches the first preset time and the number of shutdowns of the magnetic levitation compressor within a second preset time is less than a shutdown number threshold, wherein the first protection threshold is less than the second protection threshold, the first preset time is less than the second preset time, and when the target parameter is less than the first protection threshold, the magnetic levitation compressor operates normally, when the target parameter is greater than the first protection threshold and less than the second protection threshold, the fault level of the magnetic levitation compressor is the first fault level, and when the target parameter is greater than the second protection threshold, the fault level of the magnetic levitation compressor is the second fault level, and the fault degree of the first fault level is less than the fault degree corresponding to the second fault level.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the control method according to any one of claims 1 to 7 is executed.

10. A magnetic levitation compressor, characterized in that: include: The electronic device as claimed in claim 9.

11. A storage medium, characterized in that: The computer program stored in the storage medium can be executed by one or more processors and can be used to implement the control method as described in any one of claims 1 to 7.

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