Compressor control method, air conditioner, starting method, related equipment and medium

Abstract

The invention discloses a compressor control method, an air conditioner, a starting method, related equipment and a medium. The control method comprises the steps that the compressor is controlled to increase the operation frequency at the preset forced pulling speed in the initial forced pulling stage, and the preset forced pulling speed is larger than the rated speed; and after the operation frequency of the compressor is increased to the switching frequency, the compressor enters a frequency increasing stage, and if the switching frequency is smaller than the rated switching frequency, the compressor is controlled to continuously increase the operation frequency at the preset frequency increasing speed. According to the method, the starting time of the compressor can be shortened, in addition, the duration of the initial forced pulling stage is shortened, the overcurrent risk during starting of the compressor is effectively reduced, on the other hand, by increasing the forced pulling rate, the difference value between the forced pulling rate of the initial forced pulling stage and the preset frequency increasing rate of the frequency increasing stage can be reduced, and the starting efficiency of the compressor is improved. The problem of switching failure from open-loop control to closed-loop control can be reduced.

Description

Technical Field

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

[0002] Air conditioners are used to adjust the temperature of a room. Related art proposes a method for controlling an air conditioner. The problem with this method is that when the ambient temperature is high, it takes a long time for the air conditioner to lower the room temperature after it is started, and the air conditioner cannot cool the room quickly. Summary of the Invention

[0003] The main technical problem solved by this application is to provide a compressor control method, an air conditioner and startup method, related equipment and media, so as to achieve rapid cooling of the air conditioner and reduce the problem of compressor startup overcurrent when the air conditioner is rapidly cooled.

[0004] In order to solve the above technical problems, the technical solution adopted in this application is to provide a control method for compressor startup, which includes: in the initial strong pull stage, controlling the compressor to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is greater than the rated rate; after the operating frequency of the compressor increases to the switching frequency, entering the frequency increase stage, the switching frequency is less than the rated switching frequency, and controlling the compressor to continue to increase the operating frequency at a preset frequency increase rate; when the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

[0005] In a possible implementation, the rated rate is 2 Hz per second, and the preset strong pulling rate ranges from [5 Hz per second, 10 Hz per second] or from 5 Hz per second to 10 Hz per second.

[0006] In a possible implementation manner, the preset frequency increase rate has a value range of [5 Hz per second, 10 Hz per second] or 5 Hz per second to 10 Hz per second.

[0007] In a possible implementation manner, the preset strong pull rate is equal to the preset frequency increase rate.

[0008] In a possible implementation, the rated switching frequency is 12 Hz, and the switching frequency has a value range of [5 Hz, 10 Hz] or 5 Hz to 10 Hz.

[0009] To address the above-mentioned technical issues, another technical solution adopted in this application is to provide a controller that controls compressor startup using the above-mentioned control method. The controller includes a determination module and a control module. The determination module is configured to determine whether the compressor is in the initial power-up phase or the frequency-increasing phase upon startup. The control module is configured to control the compressor to increase its operating frequency at a preset power-up rate during the initial power-up phase, wherein the preset power-up rate is greater than the rated rate. The control module controls the compressor to enter the frequency-increasing phase after the operating frequency increases to a switching frequency, wherein the switching frequency is less than the rated switching frequency, and the compressor is controlled to continue increasing its operating frequency at the preset frequency-increasing rate.

[0010] In order to solve the above technical problems, another technical solution adopted in the present application is to provide a method for starting an air conditioner, which controls the start-up of the compressor through the above control method.

[0011] In order to solve the above technical problems, another technical solution adopted in the present application is to provide an air conditioner, which is controlled and operated by the above control method or starting method.

[0012] To solve the above technical problems, another technical solution adopted in this application is to provide an electronic device, which includes: a processor; a memory connected to the processor and used to store a computer program that can be run on the processor; wherein the processor implements the above control method when executing the computer program.

[0013] In order to solve the above technical problems, another technical solution adopted in this application is to provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above control method is implemented.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, the present application provides a compressor control method, an air conditioner and a startup method, and related equipment and media. In the startup method of the compressor, the difference between the preset strong pull rate and the switching frequency is less than the difference between the rated rate and the rated switching frequency. The present application increases the strong pull rate in the initial strong pull stage, while reducing the switching frequency from the initial strong pull stage to the frequency increase stage, which enables the compressor to quickly increase the frequency to the target frequency and shorten the compressor startup time. In addition, the duration of the initial strong pull stage is shortened, effectively reducing the risk of overcurrent when the compressor starts. On the other hand, by increasing the strong pull rate, the difference between the strong pull rate in the initial strong pull stage and the preset frequency increase rate in the frequency increase stage can be reduced, which can reduce the problem of failure in switching from open-loop control to closed-loop control due to excessive difference in the rates between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a waveform diagram of compressor startup in the related art;

[0017] Figure 2 This is a startup waveform diagram of another related art in which the frequency rise rate is increased when the compressor is started;

[0018] Figure 3 This is a flow chart of a first embodiment of a method for controlling compressor startup provided by the present application;

[0019] Figure 4 1 is a flow chart of a second embodiment of a method for controlling compressor startup provided by the present application;

[0020] Figure 5 is a startup waveform diagram of the compressor in the second embodiment;

[0021] Figure 6 1 is a flow chart of a third embodiment of the compressor startup control method provided by the present application;

[0022] Figure 7 is a startup waveform diagram of the compressor in the third embodiment;

[0023] Figure 8 1 is a flow chart of a fourth embodiment of a method for controlling compressor startup provided by the present application;

[0024] Figure 9 This is a structural block diagram of an embodiment of the controller of the present application;

[0025] Figure 10 This is a schematic block diagram of the structure of an embodiment of the electronic device of the present application;

[0026] Figure 11 This is a schematic structural block diagram of an embodiment of a computer-readable storage medium of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms. Unless otherwise clearly indicated above, "a plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0029] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0030] It should be understood that the terms "comprises," "comprising," or any other variations used herein are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0031] The compressor control method in air conditioners is usually field-oriented control, which can achieve efficient and stable operation through the direction and amplitude of the magnetic field. The compressor startup is divided into the initial strong pull phase and the frequency increase phase. In related technologies, air conditioner compressors have the problem of slow startup and the compressor taking a long time to increase the frequency to the target frequency. Please refer to Figure 1 , Figure 1 This is a waveform diagram of compressor startup in related technology. Figure 1 In the figure, AC1 is the waveform curve of the compressor, M1 is the curve of the switching part between the initial strong pull stage and the frequency increase stage in the waveform curve, and the curve below AC1 is an enlarged schematic diagram of the curve at M1, as shown in the figure. Figure 1 As shown, in the related art, when the compressor starts, the initial strong pull phase and the frequency increase phase are both long in duration. Figure 1 There is a technical problem of slow compressor startup in another related technology. Figure 2 , Figure 2 This is another related technology startup waveform diagram of a compressor with an increased frequency rise rate when starting. Figure 2 In the figure, AC2 is the compressor waveform curve, M2 is the curve of the switching part between the initial strong pull stage and the frequency increase stage in the waveform curve, and the curve below AC2 is an enlarged diagram of the curve at M2, as shown in the figure. Figure 2As shown, in this related technology, when the compressor is started, although it is hoped to shorten the duration of the frequency increase stage by increasing the frequency increase rate, after the frequency increase rate is increased, since the difference between the frequency increase rate and the strong pull rate of the initial strong pull stage is too large, violent oscillation of current occurs in the connection period between the initial strong pull stage and the frequency increase stage, causing an overcurrent problem, which leads to the failure of the compressor to start.

[0032] To address the above issues, this application proposes a compressor control method, an air conditioner, and startup method, as well as related equipment and media, to achieve rapid cooling of the air conditioner while reducing the problem of compressor startup overcurrent during rapid cooling. The defrosting method, controller, and air conditioner provided by this application are described in detail below, with reference to the accompanying drawings and examples.

[0033] This application provides a method for controlling the start-up of a compressor. Figure 3 , Figure 3 : is a flow chart of a first embodiment of a method for controlling compressor startup provided by the present application. In a specific embodiment, the control method includes:

[0034] S11: In the initial strong pull stage, the compressor is controlled to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is greater than the rated rate.

[0035] Compressor startup consists of an initial forced-start phase and a frequency-increasing phase. During the initial forced-start phase, the compressor operates under open-loop control, starting from a complete standstill with unknown rotor position. During this phase, the motor is forced to start and initially establish a rotating magnetic field, overcoming static friction resistance. The compressor frequency then rises to the switching frequency, while the rotor speed is increased to a certain level, creating the conditions for switching to closed-loop control in the frequency-increasing phase.

[0036] The rated speed is the speed at which a compressor is forced to start, as used in conventional technology. During the initial forced-start phase of an air conditioner compressor, the rated speed is typically 2 Hz per second. In this embodiment, the preset forced-start speed is greater than the rated speed. Specifically, the preset forced-start speed may be 3 Hz per second, 5 Hz per second, 8 Hz per second, or 10 Hz per second. When the preset forced-start speed is greater than the rated speed, the compressor can quickly ramp up to the switching frequency, shortening the compressor startup time, shortening the duration of the initial forced-start phase, and reducing the risk of overcurrent during compressor startup.

[0037] S12: After the operating frequency of the compressor increases to the switching frequency, it enters the frequency increase stage. The switching frequency is lower than the rated switching frequency, and the compressor is controlled to continue increasing the operating frequency at a preset frequency increase rate.

[0038] After the compressor's operating frequency increases to the switching frequency, the compressor's rotor reaches the threshold, and the compressor's back-electromotive force signal is sufficiently strong and stable. Consequently, the compressor switches from open-loop control to closed-loop control, and the compressor enters the frequency-increasing phase. During this phase, the compressor's frequency continues to increase. The rated switching frequency is the switching frequency at which the compressor switches from the initial strong-pull phase to the frequency-increasing phase in the prior art. When the switching frequency is less than the rated switching frequency, the duration of the initial strong-pull phase can be shortened, reducing the risk of overcurrent during compressor startup and shortening the compressor startup time.

[0039] In other embodiments, the difference between the preset forced pull rate and the switching frequency is less than the difference between the rated rate and the rated switching frequency. In some embodiments, the preset forced pull rate is greater than the rated rate, and the switching frequency is less than the rated switching frequency. In other embodiments, the preset forced pull rate is greater than the rated rate, and the switching frequency is the same as the rated switching frequency. In still other embodiments, the preset forced pull rate is the same as the rated rate, and the switching frequency is less than the rated switching frequency.

[0040] S13: When the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

[0041] Different from the prior art, the present application provides a control method for starting a compressor. In the starting method of the compressor, the difference between the preset strong pull rate and the switching frequency is smaller than the difference between the rated rate and the rated switching frequency. The present application increases the strong pull rate in the initial strong pull stage and reduces the switching frequency from the initial strong pull stage to the frequency increase stage, which can enable the compressor to quickly increase the frequency to the target frequency and shorten the starting time of the compressor. In addition, the duration of the initial strong pull stage is shortened, effectively reducing the risk of overcurrent when the compressor starts. On the other hand, by increasing the strong pull rate, the difference between the strong pull rate in the initial strong pull stage and the preset frequency increase rate in the frequency increase stage can be reduced, which can reduce the problem of failure in switching from open-loop control to closed-loop control due to excessive difference in the rates between the two.

[0042] See also Figure 4 , Figure 4 : is a flow chart of a second embodiment of a compressor startup control method provided by the present application. In another specific embodiment, the control method includes:

[0043] S21: In the initial strong pull stage, the compressor is controlled to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is greater than the rated rate.

[0044] In this step, the preset forced pull rate is greater than the rated rate. When the preset forced pull rate is greater than the rated rate, the compressor can quickly increase the frequency to the switching frequency, shorten the compressor startup time, shorten the duration of the initial forced pull phase, and reduce the risk of overcurrent during compressor startup.

[0045] Furthermore, in a preferred embodiment, the rated rate is 2 Hz per second, and the preset strong pulling rate ranges from [5 Hz per second, 10 Hz per second] or from 5 Hz per second to 10 Hz per second. Specifically, the preset strong pulling rate can be a reasonable value such as 5 Hz per second, 8 Hz per second, 9 Hz per second, or 10 Hz per second.

[0046] S22: After the operating frequency of the compressor increases to the switching frequency, it enters the frequency increase phase, the switching frequency is the same as the rated switching frequency, and the compressor is controlled to continue to increase the operating frequency at a preset frequency increase rate.

[0047] In this step, in order to shorten the startup time of the compressor and achieve rapid cooling of the air conditioner, the frequency increase rate is also increased compared with the existing technology. Since the present application also increases the strong pull rate, after the frequency increase rate is increased, there will be no problem of excessive difference between the preset strong pull rate and the frequency increase rate, which will cause failure to switch from open-loop control to closed-loop control and compressor startup failure.

[0048] In this step, compared with the existing rate, the preset frequency increase rate is increased to a value range of 5 Hz per second to 10 Hz per second. Specifically, the preset frequency increase rate can be 5 Hz per second, 7 Hz per second, 9 Hz per second, 10 Hz per second, etc.

[0049] In a preferred embodiment, the preset forced pull rate is equal to the preset frequency increase rate. For example, the increased preset frequency increase rate and the preset forced pull rate can both be 5 Hz / s, 8 Hz / s, 10 Hz / s, etc., to avoid a large difference between the preset forced pull rate and the preset frequency increase rate, which could result in a failure to switch from open-loop control to closed-loop control and a compressor startup failure.

[0050] S23: When the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

[0051] Please refer to Figure 5 , Figure 5 is a waveform diagram of the compressor startup in the second embodiment. Figure 5 In the figure, AC4 is the waveform curve of the compressor, M4 is the curve of the switching part between the initial strong pull stage and the frequency increase stage in the waveform curve, and the curve below AC2 is an enlarged diagram of the curve at M4, as shown in the figure. Figure 5 As shown, in this embodiment, when the compressor starts, the frequency increase rate is increased while the strong pull rate in the initial strong pull stage is increased, thereby shortening the startup time. At the same time, it can ensure that the difference between the strong pull rate and the frequency increase rate is reduced. No obvious oscillation occurs in the connection period between the initial strong pull stage and the frequency increase stage, and no overcurrent problem is caused, so the compressor can start quickly.

[0052] See also Figure 6 , Figure 6 : is a flow chart of a third embodiment of a compressor startup control method provided by the present application. In another specific embodiment, the control method includes:

[0053] S31: In the initial strong pull stage, the compressor is controlled to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is the same as the rated rate.

[0054] S32: After the operating frequency of the compressor increases to the switching frequency, it enters the frequency increase phase. The switching frequency is less than the rated switching frequency. The compressor is controlled to continue increasing the operating frequency at a preset frequency increase rate.

[0055] When the switching frequency is lower than the rated switching frequency, the duration of the initial strong pull phase can also be shortened, thereby reducing the risk of overcurrent when the compressor starts and shortening the compressor startup time.

[0056] In this step, the rated switching frequency is 12 Hz, and the switching frequency range is [5 Hz, 10 Hz] or 5 Hz to 10 Hz. Specifically, the switching frequency can be 5 Hz, 6 Hz, 7 Hz, 10 Hz, etc.

[0057] S33: When the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

[0058] Please refer to Figure 7 , Figure 7 is a waveform diagram of the compressor startup in the third embodiment. Figure 7 In the figure, AC3 is the waveform curve of the compressor, M3 is the curve of the switching part between the initial strong pull stage and the frequency increase stage in the waveform curve, and the curve below AC3 is an enlarged diagram of the curve at M3, as shown in the figure. Figure 7 As shown, in this embodiment, the compressor starts, the switching frequency is reduced, and the duration of the initial strong pull stage is shortened, thereby shortening the startup time. At the same time, no obvious oscillation occurs in the connection period between the initial strong pull stage and the frequency increase stage, and no overcurrent problem is caused, which enables the compressor to start quickly.

[0059] See also Figure 8 , Figure 8 : is a flow chart of a fourth embodiment of a compressor startup control method provided by the present application. In another specific embodiment, the control method includes:

[0060] S41: In the initial strong pull stage, the compressor is controlled to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is greater than the rated rate.

[0061] S42: After the operating frequency of the compressor increases to the switching frequency, it enters the frequency increase phase. The switching frequency is less than the rated switching frequency. The compressor is controlled to continue increasing the operating frequency at a preset frequency increase rate.

[0062] S43: When the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

[0063] Different from the previous embodiment, in this embodiment, the preset strong pull rate is greater than the rated rate, and the switching frequency is less than the rated switching frequency, which can enable the compressor to quickly increase the frequency to the target frequency more quickly, further shorten the compressor startup time, further shorten the duration of the initial strong pull stage, and reduce the overcurrent risk when the compressor starts. In addition, the increase in the preset strong pull rate can reduce the difference between the strong pull rate in the initial strong pull stage and the preset frequency increase rate in the frequency increase stage, which can reduce the problem of failure in switching from open-loop control to closed-loop control due to excessive difference in the rates between the two.

[0064] Different from the prior art, the present application provides a control method for starting a compressor. In the starting method of the compressor, the difference between the preset strong pull rate and the switching frequency is smaller than the difference between the rated rate and the rated switching frequency. The present application increases the strong pull rate in the initial strong pull stage and reduces the switching frequency from the initial strong pull stage to the frequency increase stage, which can enable the compressor to quickly increase the frequency to the target frequency and shorten the starting time of the compressor. In addition, the duration of the initial strong pull stage is shortened, effectively reducing the risk of overcurrent when the compressor starts. On the other hand, by increasing the strong pull rate, the difference between the strong pull rate in the initial strong pull stage and the preset frequency increase rate in the frequency increase stage can be reduced, which can reduce the problem of failure in switching from open-loop control to closed-loop control due to excessive difference in the rates between the two.

[0065] Correspondingly, the present application also proposes a method for starting an air conditioner, which controls the start-up of the compressor through the above-mentioned control method.

[0066] Correspondingly, the present application also proposes an air conditioner, which is controlled and operated by the above-mentioned control method or startup method.

[0067] Correspondingly, this application also proposes a controller, see Figure 9 , Figure 9 It is a structural block diagram of an embodiment of the controller of the present application. The controller 100 includes a control module 110 and a judgment module 120. The judgment module 120 is used to judge whether the compressor is in the initial strong pull stage or the frequency increase stage when it starts. The control module 110 is used to control the compressor to increase the operating frequency at a preset strong pull rate in the initial strong pull stage, wherein the preset strong pull rate is greater than the rated rate; after the operating frequency of the compressor increases to the switching frequency, the control module 110 controls the compressor to enter the frequency increase stage, the switching frequency is less than the rated switching frequency, and controls the compressor to continue to increase the operating frequency at a preset frequency increase rate; wherein the difference between the preset strong pull rate and the switching frequency is less than the difference between the rated rate and the rated switching frequency; when the operating frequency of the compressor reaches the target frequency, the control module 110 controls the compressor to start.

[0068] In some embodiments, the rated rate is 2 Hz per second, and the preset strong pulling rate ranges from [5 Hz per second, 10 Hz per second] or from 5 Hz per second to 10 Hz per second.

[0069] In some embodiments, the preset frequency up-conversion rate ranges from [5 Hz to 10 Hz] or from 5 Hz to 10 Hz.

[0070] In some embodiments, the preset strong pull rate is equal to the preset up-conversion rate.

[0071] In some embodiments, the rated switching frequency is 12 Hz, and the switching frequency range is [5 Hz, 10 Hz] or 5 Hz to 10 Hz.

[0072] Correspondingly, this application also proposes an electronic device, see Figure 10 , Figure 10 2 is a schematic block diagram of the structure of an embodiment of an electronic device of the present application. The electronic device 200 includes a processor 220 and a memory 210. The memory 210 is connected to the processor 220 and is used to store a computer program that can be executed on the processor 220. When the processor 220 executes the computer program, it implements the control method or startup method of any of the above-mentioned embodiments.

[0073] This application also provides a computer-readable storage medium, see Figure 11 , Figure 11 The computer-readable storage medium 30 of the present application stores a computer program 300, which, when executed by a processor, implements the steps of any of the control methods or startup methods described above.

[0074] The computer-readable storage medium 30 can specifically be a medium that can store the computer program 300, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, or it can also be a server that stores the computer program 300. The server can send the stored computer program 300 to other devices for execution, or it can also execute the stored computer program 300 itself.

[0075] In the several embodiments provided in this application, it should be understood that the disclosed methods, devices and apparatuses can be implemented in other ways. For example, the above-described device and apparatus implementation methods are merely schematic. For example, the division of modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0076] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0077] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0078] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims

1. A method for controlling the startup of a compressor, characterized in that: The control method includes: In the initial strong pull stage, the compressor is controlled to increase the operating frequency at a preset strong pull rate, wherein the preset strong pull rate is greater than the rated rate; After the operating frequency of the compressor increases to the switching frequency, the frequency increase phase is entered, the switching frequency is less than the rated switching frequency, and the compressor is controlled to continue increasing the operating frequency at a preset frequency increase rate; When the operating frequency of the compressor reaches the target frequency, the compressor startup is completed.

2. The control method according to claim 1, characterized in that: The rated rate is 2 Hz per second, and the preset strong pulling rate ranges from [5 Hz per second, 10 Hz per second] or from 5 Hz per second to 10 Hz per second.

3. The control method according to claim 2, characterized in that: The preset frequency increase rate has a value range of [5 Hz per second, 10 Hz per second] or 5 Hz per second to 10 Hz per second.

4. The control method according to claim 3, characterized in that: The preset strong pull rate is equal to the preset frequency increase rate.

5. The control method according to claim 1, characterized in that: The rated switching frequency is 12 Hz, and the switching frequency has a value range of [5 Hz, 10 Hz] or 5 Hz to 10 Hz.

6. A controller, characterized in that: The controller controls the compressor to start by using the control method according to any one of claims 1 to 5, and the controller includes: A judgment module is used to judge whether the compressor is in the initial strong pull stage or the frequency increase stage when starting; The control module is used to control the compressor to increase the operating frequency at a preset strong pulling rate in the initial strong pulling stage, wherein the preset strong pulling rate is greater than the rated rate; after the operating frequency of the compressor increases to the switching frequency, the control module controls the compressor to enter the frequency increase stage, wherein the switching frequency is less than the rated switching frequency, and controls the compressor to continue to increase the operating frequency at the preset frequency increase rate.

7. A method for starting an air conditioner, characterized in that: The air conditioner startup method controls the compressor startup by the control method according to any one of claims 1 to 5.

8. An air conditioner, characterized in that: The air conditioner is configured to be controlled to operate by the method according to any one of claims 1 to 5.

9. An electronic device, characterized in that: include: processor; A memory, connected to the processor, for storing a computer program that can be run on the processor; wherein, when the processor executes the computer program, the control method according to any one of claims 1 to 5 is implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the control method according to any one of claims 1 to 5 is implemented.

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