Compressor operation control method and device, computer equipment and storage medium

Abstract

The invention relates to an operation control method and device of a compressor, computer equipment and a storage medium. The method comprises the steps that when the compressor is in a running state, the current rotating speed value and the current actual consumption power value of the compressor are obtained, the current system high-pressure value is obtained, and the current rated power value of the compressor is determined according to the current rotating speed value, the current system high-pressure value and a pre-established rated power calculation model; and according to the current actual consumption power value and the current rated power value, the running state of the compressor is controlled. By adopting the method, whether the compressor is abnormal or not can be judged without an additional external sensor, so that the monitoring cost of the compressor is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a method, device, computer equipment and storage medium for controlling operation of a compressor. Background Art

[0002] The current electric compressor system includes a compressor, a condenser, a pressure sensor and an evaporator. If it is necessary to determine whether the electric compressor system has an abnormality, additional sensors are usually required for monitoring. For example, a low-pressure sensor is used to monitor the suction pressure of the compressor, and a temperature sensor is used to monitor the exhaust temperature of the electric compressor system. This method of determining whether the electric compressor system has an abnormality based on the monitoring results of the additional sensors results in high monitoring costs for the electric compressor system. Summary of the invention

[0003] Based on this, it is necessary to provide a compressor operation control method, device, computer equipment and storage medium to address the above technical problems, without the need for additional external sensors to determine whether the compressor is abnormal, thereby reducing the monitoring cost of the compressor.

[0004] A method for controlling the operation of a compressor, the method comprising:

[0005] When the compressor is in operation, obtain the current speed value and current actual power consumption value of the compressor, and

[0006] Get the current system high voltage value;

[0007] Determine the current rated power value of the compressor according to the current speed value, the current system high pressure value and the pre-established rated power calculation model;

[0008] The operating state of the compressor is controlled according to the current actual power consumption value and the current rated power value.

[0009] In one embodiment, controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value includes:

[0010] In response to the current actual power consumption value being smaller than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being larger than the current rated power value by more than a second threshold, the compressor protection strategy is executed.

[0011] In one embodiment, controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value further includes:

[0012] When the current actual power consumption value is less than the current rated power value by more than a first threshold value, outputting first prompt information indicating that the system is in a vacuum state;

[0013] When the current actual power consumption value is greater than the current rated power value by more than a second threshold, a second prompt message indicating that the system is under heavy load is output.

[0014] In one embodiment, in response to the current actual power consumption value being smaller than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being larger than the current rated power value by more than a second threshold, running the compressor protection strategy includes:

[0015] In response to the current actual power consumption value being less than the current rated power value by more than a first threshold and lasting for more than a first time threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold and lasting for more than a second time threshold, the compressor protection strategy is executed.

[0016] In one embodiment, determining the current rated power value of the compressor according to the current speed value, the current system high pressure value and a pre-established rated power calculation model includes:

[0017] According to P 额 =(K1*a+M1)*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0018] In one embodiment, the method further comprises:

[0019] When the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively;

[0020] A rated power calculation model is established according to each group of given speed values, given actual power values ​​and corresponding rated power measurement values.

[0021] In one embodiment, when the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively, including:

[0022] When the compressor is at a current given speed value and a current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading the standard bench of the system where the compressor is located.

[0023] A compressor operation control device, the device comprising:

[0024] An acquisition module, used to acquire the current speed value and current actual power consumption value of the compressor and the current system high pressure value when the compressor is in operation;

[0025] A processing module, used to determine a current rated power value of the compressor according to a current speed value, a current system high pressure value and a pre-established rated power calculation model;

[0026] The control module is used to control the operating state of the compressor according to the current actual power consumption value and the current rated power value.

[0027] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the following steps are implemented:

[0028] When the compressor is in operation, the current speed value and the current actual power consumption value of the compressor are obtained, and the current system high pressure value is obtained;

[0029] Determine the current rated power value of the compressor according to the current speed value, the current system high pressure value and the pre-established rated power calculation model;

[0030] The operating state of the compressor is controlled according to the current actual power consumption value and the current rated power value.

[0031] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0032] When the compressor is in operation, the current speed value and the current actual power consumption value of the compressor are obtained, and the current system high pressure value is obtained;

[0033] Determine the current rated power value of the compressor according to the current speed value, the current system high pressure value and the pre-established rated power calculation model;

[0034] The operating state of the compressor is controlled according to the current actual power consumption value and the current rated power value.

[0035] The operation control method, device, computer equipment and storage medium of the above-mentioned compressor obtain the current speed value and the current actual power consumption value of the compressor, obtain the current system high pressure value, and determine the current rated power value of the compressor based on the current speed value, the current system high pressure value and a pre-established rated power calculation model when the compressor is in operation; and control the operation state of the compressor based on the current actual power consumption value and the current rated power value.

[0036] Therefore, since the internal speed of the compressor, the actual power consumption, and the system high pressure value are collected very quickly, the operation protection of the compressor can be performed based on these data, and the abnormality of the compressor can be identified at the millisecond level, so as to provide protection. Moreover, when it is determined that the system where the compressor is located has an abnormality, the operation of the compressor is protected in time to avoid damage to the compressor, and there is no need to use an external low-pressure sensor to judge the abnormality, thus reducing the monitoring cost of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a flow chart of a method for controlling the operation of a compressor in one embodiment;

[0038] Figure 2 It is a flow chart of the compressor operation control steps in one embodiment;

[0039] Figure 3 A schematic diagram of a flow chart of steps for establishing a rated power calculation model in one embodiment;

[0040] Figure 4 is a structural block diagram of an operation control device for a compressor in one embodiment;

[0041] Figure 5 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In some exemplary embodiments, Figure 1 As shown, a compressor operation control method is provided, which is described by taking the method applied to a computer device as an example, and includes the following steps:

[0044] Step 102: when the compressor is in operation, obtain the current rotation speed value and the current actual power consumption value of the compressor.

[0045] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It sucks low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the motor, and discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0046] That is, when the compressor is running, the motor drives the piston to compress. During this process, the current speed value of the compressor and the current actual power consumption value can be obtained.

[0047] Among them, the current speed value reflects the speed completed by the compressor in unit time, reflecting the operating status of the compressor. The current actual power consumption value refers to the power consumed by the compressor in the actual operating state, reflecting the actual energy consumption of the compressor at a specific moment.

[0048] Specifically, after the compressor is connected to the low-voltage power supply, it starts to run. At this time, the compressor is in a running state, and the current speed value and the current actual power consumption value of the compressor when it is running are obtained.

[0049] Step 104, obtaining the current system high pressure value.

[0050] The system where the compressor is located also includes a high-pressure pressure sensor, which is a device specially used to measure and monitor high-pressure signals. It is usually used to measure pressure in high-pressure environments. When the high-pressure pressure sensor senses pressure changes, its internal pressure sensitive element will deform, thereby generating a high-pressure value for the system. Generally, more than 7Bar.A is considered high pressure. The system where the compressor is located should at least have a high-pressure pressure sensor to protect the system from excessive high pressure and avoid abnormalities in the system caused by high pressure. The high-pressure pressure sensor generally does not need to be added additionally.

[0051] Specifically, when the compressor is running, the high-pressure pressure sensor also starts working. When the high-pressure pressure sensor senses a change in the internal pressure of the system, the pressure sensitive element inside the high-pressure pressure sensor is deformed, and the current system high pressure value is collected. That is, the current system high pressure value is obtained based on the collected data of the high-pressure pressure sensor of the system where the compressor is located.

[0052] In other exemplary embodiments, the current system high pressure value may also be acquired through other measuring devices, or may also be acquired through some software applications. For example, a software application related to controlling a compressor may acquire the current system high pressure value.

[0053] Step 106, determining the current rated power value of the compressor according to the current rotation speed value, the current system high pressure value and a pre-established rated power calculation model.

[0054] Among them, the pre-established rated power calculation model is a mathematical model used to calculate the rated power based on the speed value and the system high voltage value. The rated power calculation model can be pre-fitted by multiple sets of speed values, system high voltage values ​​and corresponding rated power measurement values.

[0055] Among them, the rated power value is the power value that the compressor should present under normal operating conditions, that is, the power output of the compressor when it works normally under standard working conditions. The current rated power value of the compressor can be determined by the current speed value of the compressor when it is running and the current system high pressure value of the system. The rated power value can also be used to determine whether the current operation of the compressor is normal or abnormal.

[0056] Specifically, after obtaining the current speed value of the compressor when it is running and the current system high pressure value of the system where the compressor is located, the current speed value and the current system high pressure value are input into a pre-established rated power calculation model to obtain the current rated power value of the compressor at this time.

[0057] Step 108, controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value.

[0058] Specifically, after obtaining the current rated power value, the current actual power consumption value consumed by the compressor during operation is compared with the current rated power value to determine whether there is an abnormality in the compressor. If an abnormality occurs, in order to avoid the compressor continuing to operate in an abnormal state and causing damage to the compressor, the operation of the compressor can be cut off and the compressor can be controlled to stop running. Conversely, if there is no abnormality, the compressor can continue to work normally.

[0059] The current actual power consumption value and the current rated power value of the compressor are compared, specifically, whether the current actual power consumption value is less than the current rated power value by a first threshold, or whether the current actual power consumption value is greater than the current rated power value by a second threshold. The first threshold and the second threshold can be pre-determined according to actual business needs, actual product needs or actual application scenarios, and are used to judge whether the compressor is abnormal. The first threshold and the second threshold can be the same or different.

[0060] In the operation control method of the above-mentioned compressor, when the compressor is in an operating state, the current speed value and the current actual power consumption value of the compressor are obtained, and the current system high pressure value is obtained. According to the current speed value, the current system high pressure value and a pre-established rated power calculation model, the current rated power value of the compressor is determined, and according to the current actual power consumption value and the current rated power value, the operating state of the compressor is controlled.

[0061] Therefore, since the internal speed of the compressor, the actual power consumption, and the system high pressure value are collected very quickly, the operation protection of the compressor can be performed based on these data, and the abnormality of the compressor can be identified at the millisecond level, so as to provide protection. Moreover, when it is determined that the system where the compressor is located has an abnormality, the operation of the compressor is protected in time to avoid damage to the compressor, and there is no need to use an external low-pressure sensor to judge the abnormality, thereby reducing the monitoring cost of the compressor.

[0062] In some exemplary embodiments, controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value includes:

[0063] In response to the current actual power consumption value being smaller than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being larger than the current rated power value by more than a second threshold, the compressor protection strategy is executed.

[0064] Among them, the first threshold and the second threshold are both used to judge whether the compressor is abnormal, and can be predetermined according to actual business needs, actual product needs or actual application scenarios. The first threshold and the second threshold can be the same or different.

[0065] Specifically, a power threshold is calculated based on the current actual power consumption value and the current rated power value, and the power threshold is compared to see whether it is less than or equal to the first threshold. If so, it proves that the system where the compressor is located may be in a first type of abnormal situation, and the compressor protection strategy is run to avoid damage to the compressor. Alternatively, a power threshold is calculated based on the current actual power consumption value and the current rated power value, and the power threshold is compared to see whether it is greater than or equal to the second threshold. If so, it proves that the system where the compressor is located may be in a second type of abnormal situation, and the compressor protection strategy can be run to avoid damage to the compressor. The power threshold may be a power difference value or a power ratio value.

[0066] When the power threshold is a power difference value, the first threshold and the second threshold may be a first difference value and a second difference value; when the power threshold is a power ratio value, the first threshold and the second threshold may be a first ratio value and a second ratio value.

[0067] In some exemplary embodiments, if the first threshold and the second threshold are respectively the first difference and the second difference, in response to the current actual power consumption value being less than the current rated power value by more than the first threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than the second threshold, specifically, the power difference may be first calculated based on the current actual power consumption value and the current rated power value, and then, in response to the power difference being less than the first difference, or in response to the power difference being greater than the second threshold, the compressor protection strategy is run.

[0068] In some exemplary embodiments, if the first threshold and the second threshold are respectively the first proportional value and the second proportional value, in response to the current actual power consumption value being less than the current rated power value by more than the first threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than the second threshold, specifically, firstly, a power proportional value is calculated based on the current actual power consumption value and the current rated power value, and then, in response to the power proportional value being less than the first proportional value, or in response to the power proportional value being greater than the second proportional value, the compressor protection strategy is run.

[0069] The power ratio value may be a ratio of a current actual power consumption value to a current rated power value.

[0070] The power ratio value may also be calculated based on the current actual power consumption value and the current rated power value, which may be specifically achieved by the following formula:

[0071]

[0072] Among them, Q is the power ratio value, P 额 is the current rated power value, P 实 It is the actual power consumption value at present.

[0073] Among them, the compressor protection strategy is a strategy to avoid damage to the compressor. It can be to obtain a cut-off instruction and cut off the operation of the compressor by switching the instruction, or it can be to output a prompt message to remind the user that the compressor has an abnormal situation, or it can be determined according to actual business needs, actual product needs or actual application scenarios.

[0074] In some exemplary embodiments, Figure 2 As shown, according to the current actual power consumption value and the current rated power value, the operating state of the compressor is controlled, and also includes:

[0075] Step 202: when the current actual power consumption value is less than the current rated power value by more than a first threshold value, output first prompt information indicating that the system is in a vacuum state.

[0076] Step 204: when the current actual power consumption value is greater than the current rated power value by more than a second threshold, output a second prompt message indicating that the system is under heavy load.

[0077] Specifically, a power threshold is calculated based on the current actual power consumption value and the current rated power value, and the power threshold is compared to see whether it is less than or above a first threshold. If so, it proves that the system where the compressor is located may be in a first type of abnormal situation, and the compressor protection strategy is run. The first type of abnormal situation here may be that the system is in a vacuum state, and the compressor protection strategy is to output a first prompt message indicating that the system is in a vacuum state, and to remind the system to perform corresponding processing to avoid damage to the compressor.

[0078] Alternatively, a power threshold is calculated based on the current actual power consumption value and the current rated power value, and the power threshold is compared to see whether it is greater than a second threshold. If so, it proves that the system where the compressor is located may be in a second type of abnormal situation, and the compressor protection strategy can be run. The second type of abnormal situation here may be that the system is under excessive load and may be running with liquid. The compressor protection strategy is to output a second prompt message indicating that the system is under excessive load, and to remind the system to perform corresponding processing to avoid damage to the compressor.

[0079] Among them, the power threshold can be a power difference value or a power ratio value. When the power threshold is a power difference value, the first threshold and the second threshold can be a first difference value and a second difference value. When the power threshold is a power ratio value, the first threshold and the second threshold can be a first ratio value and a second ratio value.

[0080] In some exemplary embodiments, a power difference is calculated based on the current actual power consumption value and the current rated power value. In response to the power difference being smaller than a first difference value, a first prompt message indicating that the system is in a vacuum state is output; or in response to the power difference being larger than a second threshold value, a second prompt message indicating that the system is under heavy load is output.

[0081] In some exemplary embodiments, a power ratio value is calculated based on the current actual power consumption value and the current rated power value. In response to the power ratio value being less than a first ratio value, a first prompt information indicating that the system is in a vacuum state is output; or in response to the power ratio value being greater than a second ratio value, a second prompt information indicating that the system is under heavy load is output.

[0082] The power ratio value may be a ratio of a current actual power consumption value to a current rated power value.

[0083] The power ratio value may also be calculated based on the current actual power consumption value and the current rated power value, which may be specifically achieved by the following formula:

[0084]

[0085] Among them, Q is the power ratio value, P 额is the current rated power value, P 实 It is the actual power consumption value at present.

[0086] In some exemplary embodiments, in response to a current actual power consumption value being less than a current rated power value by more than a first threshold, or in response to a current actual power consumption value being greater than a current rated power value by more than a second threshold, a compressor protection strategy is run, including the steps of: running the compressor protection strategy in response to a current actual power consumption value being less than a current rated power value by more than a first threshold and lasting for a period exceeding a first time threshold, or in response to a current actual power consumption value being greater than a current rated power value by more than a second threshold and lasting for a period exceeding a second time threshold.

[0087] Among them, since the performance of compressors is relatively good now and can withstand a certain pressure resistance, when running the compressor protection strategy, it can be determined that the compressor is in an abnormal state for a duration that reaches a threshold before running. Specifically, if the current actual power consumption value is less than the current rated power value by more than the first threshold and the duration exceeds the first time threshold, or if the current actual power consumption value is greater than the current rated power value by more than the second threshold and the duration exceeds the second time threshold, then run the compressor protection strategy, because the compressor has an abnormal condition in a short period of time, there is no need to run the compressor protection strategy, and the abnormality in a short period of time will not cause damage to the compressor.

[0088] Among them, the first time threshold and the second time threshold are used to judge the limit value of the duration of the abnormal condition of the compressor, which can be predetermined according to actual business needs, actual product needs or actual application scenarios. For example, if the duration exceeds 30 seconds, the compressor protection strategy needs to be run. Among them, the first time threshold and the second time threshold can be the same or different.

[0089] In some exemplary embodiments, determining the current rated power value of the compressor according to the current speed value, the current system high pressure value, and a pre-established rated power calculation model includes:

[0090] According to P 额 =(K1*a+M1)*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0091] The rated power calculation model refers to the following calculation formula, specifically:

[0092] P 额 =(K1*a+M1)*b+K2*a+M2

[0093] Among them, P额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0094] In some exemplary embodiments, K1 is 0.24, M1 is 0.085, K2 is 20, and M2 is 7, then the specific formula is:

[0095] P 额 =(0.24*a+0.085)*b+20*a+7

[0096] In some exemplary embodiments, Figure 3 As shown, the above method also includes:

[0097] Step 302, when the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively.

[0098] Step 304: Establish a rated power calculation model according to each set of given rotational speed values, given actual power values ​​and corresponding rated power measurement values.

[0099] The rated power calculation model can be obtained by fitting multiple sets of data, which include a given speed value, a given system high pressure value, and a corresponding rated power measurement value, wherein the rated power measurement value is obtained by placing the compressor at a given speed value and a given system high pressure value and reading the compressor. Specifically, when the compressor is at a given speed value and a given system high pressure value, it starts to run, thereby consuming power, and the power consumption of the compressor is read to obtain the rated power measurement value corresponding to the given speed value and the given system high pressure value.

[0100] Furthermore, a rated power calculation model is obtained by fitting calculations based on multiple sets of given speed values, given system high pressure values, and corresponding rated power measurement values. That is, the speed value of the compressor and the system high pressure value in which it is located can be input into the rated power calculation model to calculate the rated power value corresponding to the compressor.

[0101] In some exemplary embodiments, when the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively, including:

[0102] When the compressor is at a current given speed value and a current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading the standard bench of the system where the compressor is located.

[0103] Specifically, when the compressor is at the current given speed value and the current given system high pressure value, the compressor starts to work normally, at which time the compressor actually consumes power, and the actual power consumed by the compressor at the current given speed value and the current given system high pressure value is read through the standard test bench, and determined as the current rated power measurement value corresponding to the current given speed value and the current given system high pressure value. The standard test bench is connected to the compressor, and is used to read the actual power consumed by the compressor at the given speed value and the given system high pressure value during the test.

[0104] The current given speed value and the current given system high voltage value are any one of a plurality of groups of given speed values ​​and given system high voltage values, and each group obtains the corresponding current rated power measurement value through this method.

[0105] In some specific embodiments, a compressor operation control method is provided, which is described in detail by the following content:

[0106] In a system with a high-pressure pressure sensor, when the electric compressor is running, the following three parameters are known: 1) compressor speed rpm, 2) system high pressure bar.A, 3) actual power consumption of the compressor W; the rated power can be calculated by substituting the first two parameters into the rated power fitting mathematical model, and the rated power can be compared with the actual power consumption to determine whether to run the compressor protection strategy. For example, when the compressor speed is 1000rpm and the system high pressure value is 14bar.A, the rated power is 456W. If the actual power consumption is more than 50% less than 456W, it proves that the system is in a vacuum state. If the actual power consumption is more than 50% greater than this power, it proves that the system load is too large at this time, and there may be a liquid-carrying operation state. Both of these are in abnormal states, and the compressor operation can be cut off to prevent the compressor from continuing to operate in an abnormal state, causing damage to the compressor. This protection strategy can be continuously monitored throughout the entire operation stage.

[0107] It should be understood that, although the various steps in the above-mentioned flow chart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above-mentioned flow chart may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0108] In some exemplary embodiments, Figure 4As shown, a compressor operation control device 400 is provided, comprising: an acquisition module 402, a processing module 404 and a control module 406, wherein:

[0109] The acquisition module 402 is used to acquire the current rotation speed value and the current actual power consumption value of the compressor when the compressor is in operation, and to acquire the current system high pressure value.

[0110] The processing module 404 is used to determine the current rated power value of the compressor according to the current rotation speed value, the current system high pressure value and the pre-established rated power calculation model.

[0111] The control module 406 is used to control the operating state of the compressor according to the current actual power consumption value and the current rated power value.

[0112] In some exemplary embodiments, the control module 406 executes the compressor protection strategy in response to the current actual power consumption value being less than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold.

[0113] In some exemplary embodiments, the control module 406 outputs a first prompt message indicating that the system is in a vacuum state when the current actual power consumption value is less than the current rated power value by more than a first threshold value, and outputs a second prompt message indicating that the system is under heavy load when the current actual power consumption value is greater than the current rated power value by more than a second threshold value.

[0114] In some exemplary embodiments, the control module 406 operates the compressor protection strategy in response to the current actual power consumption value being less than the current rated power value by more than a first threshold and lasting for more than a first time threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold and lasting for more than a second time threshold.

[0115] In some exemplary embodiments, the processing module 404 performs the following operations according to P 额 =(K1*a+M1)*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0116] In some exemplary embodiments, the operation control device 400 of the compressor obtains each rated power measurement value when the compressor is at each group of given speed values ​​and given system high pressure values, and establishes a rated power calculation model according to each group of given speed values, given actual power values ​​and corresponding rated power measurement values.

[0117] In some exemplary embodiments, when the compressor is at a current given speed value and a current given system high pressure value, the operation control device 400 of the compressor obtains the current rated power measurement value of the compressor by reading the standard bench of the system where the compressor is located.

[0118] For the specific definition of the operation control device of the compressor, please refer to the definition of the operation control method of the compressor above, which will not be repeated here. Each module in the above-mentioned operation control device of the compressor can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0119] In some exemplary embodiments, a computer device is provided, the internal structure diagram of the computer device can be as follows: Figure 5 As shown. The computer device includes a processor, a memory, and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for controlling the operation of a compressor is implemented.

[0120] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0121] In some exemplary embodiments, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program: when the compressor is in operation, obtaining a current speed value and a current actual power consumption value of the compressor, and obtaining a current system high pressure value, determining a current rated power value of the compressor according to the current speed value, the current system high pressure value, and a pre-established rated power calculation model, and controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value.

[0122] In some exemplary embodiments, when the processor executes the computer program, it also implements the following steps: in response to the current actual power consumption value being less than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold, running the compressor protection strategy.

[0123] In some exemplary embodiments, when the processor executes the computer program, the following steps are also implemented: when the current actual power consumption value is less than the current rated power value by more than a first threshold value, a first prompt information characterizing that the system is in a vacuum state is output; when the current actual power consumption value is greater than the current rated power value by more than a second threshold value, a second prompt information characterizing that the system is under excessive load is output.

[0124] In some exemplary embodiments, when the processor executes the computer program, the following steps are also implemented: in response to the current actual power consumption value being less than the current rated power value by more than a first threshold and lasting for more than a first time threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold and lasting for more than a second time threshold, the compressor protection strategy is run.

[0125] In some exemplary embodiments, when the processor executes the computer program, the processor further implements the following steps: 额 =(K1*a+M1)*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0126] In some exemplary embodiments, when the processor executes the computer program, the following steps are also implemented: when the compressor is at each group of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively, and a rated power calculation model is established according to each group of given speed values, given actual power values ​​and corresponding rated power measurement values.

[0127] In some exemplary embodiments, when the processor executes the computer program, the following steps are also implemented: when the compressor is at a current given speed value and a current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading the standard bench of the system where the compressor is located.

[0128] In some exemplary embodiments, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: when the compressor is in an operating state, a current speed value and a current actual power consumption value of the compressor are obtained, and a current system high pressure value is obtained; according to the current speed value, the current system high pressure value and a pre-established rated power calculation model, the current rated power value of the compressor is determined; according to the current actual power consumption value and the current rated power value, the operating state of the compressor is controlled.

[0129] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are also implemented: in response to the current actual power consumption value being less than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold, running the compressor protection strategy.

[0130] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are also implemented: when the current actual power consumption value is less than the current rated power value by more than a first threshold value, a first prompt information characterizing that the system is in a vacuum state is output; when the current actual power consumption value is greater than the current rated power value by more than a second threshold value, a second prompt information characterizing that the system is under excessive load is output.

[0131] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are also implemented: in response to the current actual power consumption value being less than the current rated power value by more than a first threshold and lasting for more than a first time threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold and lasting for more than a second time threshold, the compressor protection strategy is run.

[0132] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are further implemented: 额 =(K1*a+M1)*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

[0133] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are also implemented: when the compressor is at each group of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively, and a rated power calculation model is established according to each group of given speed values, given actual power values ​​and corresponding rated power measurement values.

[0134] In some exemplary embodiments, when the computer program is executed by the processor, the following steps are also implemented: when the compressor is at a current given speed value and a current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading the standard bench of the system where the compressor is located.

[0135] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0136] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0137] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for controlling the operation of a compressor, the method comprising: When the compressor is in operation, obtaining the current speed value and the current actual power consumption value of the compressor, and obtaining the current system high pressure value; Determining a current rated power value of the compressor according to the current speed value, the current system high pressure value and a pre-established rated power calculation model; The operating state of the compressor is controlled according to the current actual power consumption value and the current rated power value.

2. The method according to claim 1, characterized in that The controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value comprises: In response to the current actual power consumption value being smaller than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being larger than the current rated power value by more than a second threshold, a compressor protection strategy is executed.

3. The method according to claim 2, characterized in that The controlling the operating state of the compressor according to the current actual power consumption value and the current rated power value further includes: When the current actual power consumption value is less than the current rated power value by more than a first threshold value, outputting first prompt information indicating that the system is in a vacuum state; When the current actual power consumption value is greater than the current rated power value by more than a second threshold, second prompt information indicating that the system is under heavy load is output.

4. The method according to claim 2, characterized in that: In response to the current actual power consumption value being smaller than the current rated power value by more than a first threshold, or in response to the current actual power consumption value being larger than the current rated power value by more than a second threshold, running the compressor protection strategy includes: In response to the current actual power consumption value being less than the current rated power value by more than a first threshold and lasting for more than a first time threshold, or in response to the current actual power consumption value being greater than the current rated power value by more than a second threshold and lasting for more than a second time threshold, the compressor protection strategy is executed.

5. The method according to claim 1, characterized in that Determining the current rated power value of the compressor according to the current speed value, the current system high pressure value and a pre-established rated power calculation model includes: According to P 额 =K1*a+M1*b+K2*a+M2 to determine the current rated power value, where P 额 is the current rated power value, K1 and K2 are different coefficients, M1 and M2 are different constants, a is the current system high voltage value, and b is the current speed value.

6. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: When the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively; The rated power calculation model is established according to each group of the given rotational speed value, the given actual power value and the corresponding rated power measurement value.

7. The method according to claim 6, characterized in that When the compressor is at each set of given speed values ​​and given system high pressure values, each rated power measurement value is obtained respectively, including: When the compressor is at a current given rotational speed value and a current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading the standard bench of the system where the compressor is located.

8. A compressor operation control device, characterized in that: The device comprises: An acquisition module, used to acquire the current speed value and the current actual power consumption value of the compressor and the current system high pressure value when the compressor is in operation; A processing module, configured to determine a current rated power value of the compressor according to the current rotation speed value, the current system high pressure value and a pre-established rated power calculation model; The control module is used to control the operating state of the compressor according to the current actual power consumption value and the current rated power value.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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