Compressor control method and device, storage medium and refrigerator

Abstract

The invention provides a control method and device of a compressor, a storage medium and a refrigerator, the control method of the compressor is applied to the refrigerator, and the method comprises the steps that after the compressor meets the preset working condition, the compressor is controlled to increase the preset rotating speed based on the current rotating speed; first power of the compressor in the process of increasing the preset rotating speed is obtained; and a target rotating speed is determined according to the first power, and the running rotating speed of the compressor is adjusted according to the target rotating speed. According to the control method of the compressor, the larger the load is, the larger the first power is, the smaller the load is, the smaller the first power is, the target rotating speed matched with the load is determined through the first power capable of reflecting the load size, the running rotating speed of the compressor is adjusted according to the target rotating speed, and then the rotating speed of the compressor is matched according to the load size; the accuracy of load detection and the utilization rate of energy consumption of the refrigerator are improved, and the adjusting speed is higher.

Description

Technical Field

[0001] The present application belongs to the technical field of compressors, and in particular, relates to a control method, a control device, a storage medium and a refrigerator for a compressor. Background Art

[0002] The speed control of the existing variable frequency refrigerator compressor is usually to match the appropriate speed in a preset speed table according to the difference between the actual temperature of the refrigerator compartment and the set temperature. However, the difference between the actual temperature of the refrigerator compartment and the set temperature can only roughly reflect the refrigerator load situation, and cannot accurately obtain the refrigerator load situation, resulting in low utilization rate of refrigerator energy consumption. Summary of the invention

[0003] The embodiments of the present application provide a compressor control method, a control device, a storage medium and a refrigerator to solve the problem that the existing refrigerator compressor matches the appropriate speed in a preset speed table according to the difference between the actual temperature of the refrigerator compartment and the set temperature, resulting in low utilization rate of refrigerator energy consumption.

[0004] The present application provides a method for controlling a compressor, which is applied to a refrigerator. The method includes:

[0005] When the compressor meets the preset working condition, controlling the compressor to increase the preset speed based on the current speed;

[0006] Acquire a first power of the compressor during a process of increasing a preset speed;

[0007] A target speed is determined according to the first power, and the compressor is controlled to operate at the target speed.

[0008] Optionally, before controlling the compressor to increase the preset speed based on the current speed, the method further includes:

[0009] When the compressor is started, controlling the compressor to run at a first speed;

[0010] If the actual speed of the compressor is the same as the first speed within a first preset time period, it is determined that the compressor meets the preset operating condition.

[0011] Optionally, determining the target speed according to the first power includes:

[0012] Acquire a second power of the compressor when the compressor runs at a first speed for a first preset time period;

[0013] calculating a power difference between the first power and the second power;

[0014] A target rotation speed is determined according to the power difference.

[0015] Optionally, determining the target speed according to the power difference includes:

[0016] According to the mapping relationship table between power and speed, the target speed corresponding to the power difference is determined.

[0017] Optionally, the obtaining of the first power of the compressor during the process of increasing the preset speed includes:

[0018] Obtaining the interval power in each start-stop cycle during the process of the compressor increasing the preset speed;

[0019] An average value of the powers in a plurality of the intervals is calculated to obtain the first power.

[0020] Optionally, after controlling the compressor to operate at the target speed, the method further includes:

[0021] If the compressor operation time exceeds a second preset time, it is determined that the compressor meets the preset operating condition.

[0022] Optionally, after controlling the compressor to operate at the target speed, the method further includes:

[0023] Accumulating the number of times the operating speed of the compressor is adjusted within a third preset time period;

[0024] If the adjustment times are greater than the preset times, the compressor is controlled to run at a second speed.

[0025] The present application also provides a compressor control device, which is applied to a refrigerator. The device includes:

[0026] A speed-up module, configured to control the compressor to increase a preset speed based on a current speed when the compressor meets a preset working condition;

[0027] A power acquisition module, configured to acquire a first power during a process in which the compressor increases a preset speed;

[0028] The control module is configured to determine a target speed according to the first power, and control the compressor to operate at the target speed.

[0029] An embodiment of the present application further provides a storage medium, which is applied to a refrigerator. The storage medium stores control instructions, and when the control instructions are executed by a processor, the control method of the compressor as described above is implemented.

[0030] The present application also provides a refrigerator, comprising:

[0031] compressor;

[0032] A controller is configured to execute the compressor control method as described above.

[0033] The control method of the compressor provided in the embodiment of the present application, because the compressor needs to overcome the load to do work when speeding up, the first power of the compressor speeding up process is obtained, and the first power can reflect the load size. It can be understood that the larger the load, the larger the first power, and the smaller the load, the smaller the first power. The target speed matching the load is determined by the first power that can reflect the load size, and the operating speed of the compressor is adjusted with the target speed, thereby matching the compressor speed according to the load size, improving the accuracy of load detection and the utilization rate of refrigerator energy consumption. Compared with the traditional control method of adjusting the speed of the compressor by the difference between the actual temperature of the refrigerator compartment and the set temperature, the control method provided in the embodiment of the present application can detect the load condition of the refrigerator at the start-up stage of the compressor, and adaptively adjust the operating speed of the compressor according to the load condition. The adjustment speed is faster, saving the time for obtaining and determining the compartment temperature and the ambient temperature, and the matching degree of the operating speed of the compressor with the load of the refrigerator is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0035] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0036] Figure 1 A usage scenario diagram of the compressor control method provided in an embodiment of the present application.

[0037] Figure 2 This is a flow chart of a method for controlling a compressor provided in an embodiment of the present application.

[0038] Figure 3 This is a structural diagram of a control device for a compressor provided in an embodiment of the present application.

[0039] Figure 4 A structural diagram of an electronic device provided in an embodiment of the present application.

[0040] Figure 5 An interactive diagram of a refrigerator provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0042] In the description of the embodiments of the present application, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, a digital signal processor or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware or a combination of the two. Non-temporary computer-readable storage media include any suitable media that can store program codes, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc.

[0043] The embodiments of the present application provide a compressor control method, a control device, a storage medium and a refrigerator to solve the problem that the existing refrigerator compressor matches the appropriate speed in a preset speed table according to the difference between the actual temperature of the refrigerator compartment and the set temperature, resulting in low utilization rate of refrigerator energy consumption, which will be explained in conjunction with the accompanying drawings below.

[0044] The compressor control method provided in the embodiment of the present application is applied to a refrigerator. Figure 1 and Figure 2 , Figure 1 This is a usage scenario diagram of the compressor control method provided in an embodiment of the present application. Figure 2 This is a flow chart of a method for controlling a compressor provided in an embodiment of the present application, wherein the method comprises the following steps:

[0045] Step S101: When the compressor meets the preset working condition, the compressor is controlled to increase the preset speed based on the current speed;

[0046] Step S102: obtaining a first power of the compressor during a process of increasing a preset speed;

[0047] Step S103: determining a target speed according to the first power, and controlling the compressor to operate at the target speed.

[0048] The control method of the compressor provided in the embodiment of the present application, because the compressor needs to overcome the load to do work when speeding up, the first power of the compressor speeding up process is obtained, and the first power can reflect the load size. It can be understood that the larger the load, the larger the first power, and the smaller the load, the smaller the first power. The target speed matching the load is determined by the first power that can reflect the load size, and the operating speed of the compressor is adjusted with the target speed, thereby matching the compressor speed according to the load size, improving the accuracy of load detection and the utilization rate of refrigerator energy consumption. Compared with the traditional control method of adjusting the speed of the compressor by the difference between the actual temperature of the refrigerator compartment and the set temperature, the control method provided in the embodiment of the present application can detect the load condition of the refrigerator at the start-up stage of the compressor, and adaptively adjust the operating speed of the compressor according to the load condition. The adjustment speed is faster, saving the time for obtaining and determining the compartment temperature and the ambient temperature, and the matching degree of the operating speed of the compressor with the load of the refrigerator is higher.

[0049] Optionally, before controlling the compressor to increase the preset speed based on the current speed in step S101, the method also includes: when the compressor is started, controlling the compressor to run at a first speed; if the actual speed of the compressor is the same as the first speed within a first preset time period, it is determined that the compressor meets the preset operating conditions.

[0050] Specifically, the compressor can be a permanent magnet synchronous motor, and the permanent magnet synchronous motor adopts a back electromotive force sensorless control algorithm. Among them, the sensorless control principle based on back electromotive force mainly uses the back electromotive force generated by the motor during operation to estimate the rotor position and speed. In a permanent magnet synchronous motor, when the rotor rotates, a back electromotive force is generated in the non-conducting phase winding. By detecting the terminal voltage of these non-conducting phase windings and processing them appropriately, the back electromotive force information can be extracted, and then the position and speed of the rotor can be estimated. Specifically, when the motor runs at a certain speed, the waveform and phase of its back electromotive force are closely related to the rotor position. By detecting the zero crossing point or peak point of the back electromotive force, the relative position of the rotor can be determined. At the same time, combined with the electrical parameters and operating status of the motor, the absolute position and speed of the rotor can be further estimated. However, the defects of this control principle include that when the motor runs at a low speed, the amplitude of the back electromotive force is small and the signal-to-noise ratio is low, resulting in a decrease in the estimation accuracy of the rotor position and speed.

[0051] Therefore, when the motor is just turned on, the motor speed is relatively low, resulting in a relatively small amplitude of the back electromotive force, which reduces the estimation accuracy of the rotor position and speed. That is, when the motor speed is relatively low, the speed and power acquisition accuracy are relatively low. Therefore, when the compressor is turned on, the compressor is first controlled to reach the first speed. After the compressor runs at the first speed for the first preset time, it indicates that the compressor is in a stable state at this time, and the amplitude of the back electromotive force is relatively large at this time, and the speed and power acquisition accuracy of the compressor are relatively high. Then, it is determined that the compressor meets the preset working conditions, and then the compressor is controlled to increase the preset speed based on the first speed, and the first power in the compressor speed-up process is obtained to ensure the acquisition accuracy of the first power, thereby ensuring the acquisition accuracy of the refrigerator load, and further improving the accuracy of refrigerator load detection.

[0052] Optionally, determining the target speed according to the first power in step S103 includes: obtaining a second power of the compressor running at the first speed for a first preset time; calculating a power difference between the first power and the second power; and determining the target speed according to the power difference, wherein the second power is less than the first power.

[0053] Since the parameters of different compressors are different and the loads during each operation are also different, and the compressor may have different power even at the same speed due to different ambient temperature and room temperature, in order to eliminate power fluctuations caused by factors such as different compressor parameters and loads, the second power when the compressor is running stably at the first speed before speed-up is calculated, and the power difference between the first power when the compressor increases the preset speed based on the first speed is calculated. The target speed is determined by the power difference, thereby improving the accuracy of load detection.

[0054] Optionally, determining the target speed according to the power difference includes: determining the target speed corresponding to the power difference according to a mapping relationship table between power and speed.

[0055] The mapping relationship table between power and speed here can be a preset mapping relationship table obtained through multiple experiments. In the mapping relationship table, each power interval corresponds to a set speed that matches it, that is, when the measured power difference belongs to one of the power intervals, the set speed corresponding to the power interval is the optimal speed of the compressor under the current load conditions. When the compressor runs at the set speed, the energy consumption conversion rate of the compressor is the highest.

[0056] Optionally, obtaining the first power in the process of the compressor increasing the preset speed in step S102 includes: obtaining the interval power in each start-stop cycle in the process of the compressor increasing the preset speed; and calculating the average value of multiple interval powers to obtain the first power.

[0057] That is, the interval power of each start-stop interval during the compressor speed-up process is obtained and the average value of multiple interval powers is calculated. The average value is the first power. By obtaining the average value of multiple interval powers, the accuracy of power collection during the compressor speed-up process is improved, and the power collection results caused by current fluctuations or other factors are prevented from being real-time or inaccurate.

[0058] Optionally, after controlling the compressor to run at the target speed in step S103, the method further includes: if the compressor running time exceeds a second preset time, determining that the compressor meets a preset operating condition.

[0059] After the operating speed of the compressor is adjusted to the target speed, while the compressor continues to run at the target speed, if the user continues to store food in the refrigerator compartment or opens the refrigerator door for a long time, the load of the refrigerator will increase based on the load when the compressor adjusts the speed. Therefore, the adjusted target speed of the compressor may not be able to meet the refrigeration capacity required by the increased load. At this time, the operating time of the compressor after the speed is adjusted may exceed the second preset time and has not reached the shutdown point, that is, the current speed of the compressor cannot achieve the expected refrigeration effect within the preset time. Therefore, when the compressor operating time exceeds the second preset time, it is determined that the compressor meets the preset operating conditions, and then the compressor speed is re-controlled to re-detect the current load of the refrigerator, and match the target speed that is adapted to the current load of the refrigerator, thereby improving the utilization rate of the refrigerator's energy consumption.

[0060] Of course, the preset operating conditions also include when the compressor is started, which is equivalent to determining that the compressor meets the preset operating conditions when the compressor is started, and then obtaining the first power by speeding up the compressor to detect the load condition of the refrigerator and match the target speed that is compatible with the load. This adjustment method has simpler control logic and lower hardware requirements.

[0061] It can be understood that the control method of the compressor provided in the embodiment of the present application includes three preset operating conditions, namely, when the compressor starts, when the compressor is controlled to run at a first speed for a first preset time after the compressor starts, and when the compressor runs for more than a second preset time after the operating speed of the compressor is adjusted to a target speed. When the compressor meets one of the operating conditions, the compressor can be controlled to increase the speed and detect the load.

[0062] Preferably, when the compressor meets the operating condition of controlling the compressor to run at the first speed for the first preset time after the compressor is started, the compressor is controlled to speed up and detect the load, and when the compressor runs for more than the second preset time after the compressor's running speed is adjusted at the target speed, the compressor is controlled to speed up and detect the load again. At this time, the target speed of the compressor during operation is optimally matched with the load, and the target speed of the compressor can be adjusted accordingly when the load fluctuates.

[0063] Optionally, after controlling the compressor to operate at the target speed in step S103, the method further includes: accumulating the number of times the operating speed of the compressor is adjusted within a third preset time; if the number of adjustments is greater than the preset number, controlling the compressor to operate at a second speed. The third preset time is greater than the second preset time. Specifically, the second speed may be the maximum speed of the compressor.

[0064] When the number of adjustments of the operating speed of the compressor within the third preset time period is greater than the preset number, it indicates that the compressor is adjusted frequently within the third preset time period, and the fluctuation of the refrigerator load during this period may be large. In order to save computing power and meet the refrigeration demand of the load as soon as possible, at this time, the compressor is directly controlled to run at the second speed, that is, the maximum speed of the compressor, thereby ensuring the preservation effect of the food in the room.

[0065] Optionally, after controlling the compressor to run at the second speed, the method further includes: clearing the currently accumulated number of adjustments, and re-accumulating the number of adjustments within a third preset time period based on the moment corresponding to the clearing operation.

[0066] The present application also provides a compressor control device for use in a refrigerator. Figure 3 , Figure 3 The structure diagram of the control device of the compressor provided in the embodiment of the present application includes a speed-up module 1, a power acquisition module 2 and a control module 3. The speed-up module 1 is configured to control the compressor to increase the preset speed based on the current speed when the compressor meets the preset working conditions; the power acquisition module 2 is configured to obtain the first power in the process of the compressor increasing the preset speed; the control module 3 is configured to determine the target speed according to the first power, and control the compressor to operate at the target speed.

[0067] The present application embodiment also provides an electronic device 4, see Figure 4 , Figure 4 This is a structural diagram of an electronic device 4 provided in an embodiment of the present application, wherein the electronic device 4 includes a memory 41, a processor 42, and a computer program 411 stored in the memory 41 and executable on the processor 42, wherein the processor 42 implements the control method of the compressor as described above when executing the computer program 411.

[0068] The embodiment of the present application also provides a storage medium, which is applied to a refrigerator. The storage medium stores control instructions, and when the control instructions are executed by the processor 42, the control method of the compressor as described above is implemented.

[0069] The present application also provides a refrigerator. Figure 5 , Figure 5The interactive diagram of the refrigerator provided in the embodiment of the present application includes a compressor and a controller. The controller is configured to execute the control method of the compressor as described above. It can be understood that the compressor is a driven fluid machine that lifts low-pressure gas to high-pressure gas and is the heart of the refrigeration system. It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by driving the piston through the operation of the motor, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle.

[0070] In some examples, the compressor can choose a permanent magnet synchronous variable frequency compressor, whose core feature is that it is driven by a permanent magnet synchronous motor and the motor speed is adjusted by the inverter, so as to achieve efficient operation and precise control of the compressor. The rotor of the permanent magnet synchronous motor is equipped with a permanent magnet and the stator is equipped with a coil. When the stator coil is energized, a rotating magnetic field is generated, and the permanent magnet rotates under the action of the magnetic field, thereby driving the motor rotor to rotate. The inverter adjusts the speed of the motor by changing the power supply frequency and voltage. The inverter adjusts the speed of the motor in real time according to the system requirements, so as to achieve precise control of the compressor. The permanent magnet synchronous variable frequency compressor can be a scroll compressor, a screw compressor or a piston compressor, etc. Through the speed adjustment of the motor, the exhaust volume and cooling capacity of the compressor can be flexibly adjusted to meet the requirements of different working conditions. Permanent magnet synchronous variable frequency compressors usually have the characteristics of high efficiency and energy saving, high starting torque, small size, compact structure, smooth operation, low noise and high control accuracy.

[0071] Exemplarily, the computer program 411 may be divided into one or more modules / units, which are stored in the memory 41 and executed by the processor 42 to implement the present invention. The one or more modules / units may be a series of computer program 411 instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program 411 in the electronic device 4.

[0072] The electronic device 4 may be a desktop computer, a notebook, a PDA, a cloud server, etc. The electronic device 4 may include, but is not limited to, a processor 42 and a memory 41. For example, the electronic device 4 may also include an input / output device, a network access device, a bus, etc.

[0073] The processor 42 may be a central processing unit (CPU), or other general-purpose processors 42, digital signal processors 42 (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor 42 may be a microprocessor 42 or any conventional processor 42, etc.

[0074] In the embodiments provided by the present invention, it should be understood that the disclosed device / electronic device 4 and method can be implemented in other ways. For example, the device / electronic device 4 embodiments described above are only schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. 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 through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0075] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, 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 software functional units.

[0076] If the integrated module / 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 present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, and the computer program code may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.

[0077] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] In the description of this application, 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0079] The control method, control device, storage medium and refrigerator of the compressor provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A compressor control method, applied to a refrigerator, characterized in that: The method comprises: When the compressor meets the preset working condition, controlling the compressor to increase the preset speed based on the current speed; Acquire a first power of the compressor during a process of increasing a preset speed; A target speed is determined according to the first power, and the compressor is controlled to operate at the target speed.

2. The compressor control method according to claim 1, characterized in that: Before controlling the compressor to increase the preset speed based on the current speed, the method further includes: When the compressor is started, controlling the compressor to run at a first speed; If the actual speed of the compressor is the same as the first speed within a first preset time period, it is determined that the compressor meets the preset operating condition.

3. The compressor control method according to claim 2, characterized in that: The determining the target speed according to the first power includes: Acquire a second power of the compressor when the compressor runs at a first speed for a first preset time period; calculating a power difference between the first power and the second power; A target rotation speed is determined according to the power difference.

4. The method for controlling a compressor according to claim 3, characterized in that: Determining the target speed according to the power difference includes: According to the mapping relationship table between power and speed, the target speed corresponding to the power difference is determined.

5. The compressor control method according to claim 1, characterized in that: The obtaining of the first power of the compressor during the process of increasing the preset speed includes: Obtaining the interval power in each start-stop cycle during the process of the compressor increasing the preset speed; An average value of the powers in a plurality of the intervals is calculated to obtain the first power.

6. The method for controlling a compressor according to claim 1, characterized in that: After controlling the compressor to operate at the target speed, the method further includes: If the compressor operation time exceeds a second preset time, it is determined that the compressor meets the preset operating condition.

7. The compressor control method according to claim 1, characterized in that: After controlling the compressor to operate at the target speed, the method further includes: Accumulating the number of times the operating speed of the compressor is adjusted within a third preset time period; If the adjustment times are greater than the preset times, the compressor is controlled to run at a second speed.

8. A compressor control device, applied to a refrigerator, characterized in that: The device comprises: A speed-up module, configured to control the compressor to increase a preset speed based on a current speed when the compressor meets a preset working condition; A power acquisition module, configured to acquire a first power during a process in which the compressor increases a preset speed; The control module is configured to determine a target speed according to the first power, and control the compressor to operate at the target speed.

9. A storage medium, applied to a refrigerator, characterized in that: The storage medium stores control instructions, and when the control instructions are executed by the processor, the compressor control method according to any one of claims 1 to 7 is implemented.

10. A refrigerator, characterized in that: include: compressor; A controller configured to execute the compressor control method according to any one of claims 1 to 7.

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