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

Abstract

The application relates to a compressor operation control method and device, computer equipment and a storage medium. The method comprises the following steps: when the compressor is in an operation state, acquiring a current rotating speed value and a current actual power consumption value of the compressor, and acquiring a current system high pressure value; according to the current rotating speed value, the current system high pressure value and a pre-established rated power calculation model, determining a current rated power value of the compressor; and according to the current actual power consumption value and the current rated power value, controlling the operation state of the compressor. The method does not need to determine whether the compressor is abnormal through an additional external sensor, thereby reducing the monitoring cost of the compressor.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a compressor operation control method, apparatus, computer equipment, and storage medium. Background Technology

[0002] Current electric compressor systems, including compressors, condensers, pressure sensors, and evaporators, typically require additional sensors to monitor for abnormalities. For example, a low-pressure sensor monitors the compressor's suction pressure, and a temperature sensor monitors the electric compressor system's discharge temperature. This method of relying on the monitoring results of additional sensors to determine whether an electric compressor system is malfunctioning results in high monitoring costs. Summary of the Invention

[0003] Therefore, it is necessary to provide a compressor operation control method, device, computer equipment, and storage medium to address the above-mentioned technical problems, eliminating the need for additional external sensors to determine whether the compressor is malfunctioning, 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 running, obtain the compressor's current speed and actual power consumption.

[0006] Obtain the current system high voltage value;

[0007] The current rated power value of the compressor is determined based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model.

[0008] The compressor's operating status is controlled based on the current actual power consumption and the current rated power.

[0009] In one embodiment, controlling the compressor's operating state based on the current actual power consumption and the current rated power includes:

[0010] The compressor protection strategy is activated when the current actual power consumption is more than a first threshold lower than the current rated power, or when the current actual power consumption is more than a second threshold higher than the current rated power.

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

[0012] When the current actual power consumption value is more than a first threshold lower than the current rated power value, a first prompt message indicating that the system is in a vacuum state is output.

[0013] When the current actual power consumption is more than a second threshold greater than the current rated power, the system outputs a second warning message indicating that the load is too high.

[0014] In one embodiment, in response to the current actual power consumption being more than a first threshold lower than the current rated power consumption, or in response to the current actual power consumption being more than a second threshold higher than the current rated power consumption, a compressor protection strategy is activated, including:

[0015] In response to the current actual power consumption being more than a first threshold lower than the current rated power value for a duration exceeding a first time threshold, or in response to the current actual power consumption being more than a second threshold higher than the current rated power value for a duration exceeding a second time threshold, the compressor protection strategy is activated.

[0016] In one embodiment, the current rated power value of the compressor is determined based on the current speed value, the current system high pressure value, and a pre-established rated power calculation model, including:

[0017] According to P 额 = (K1*a+M1)*b+K2*a+M2 determines the current rated power value, where P 额 The current rated power value is given by K1 and K2, which 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 includes:

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

[0020] A rated power calculation model is established based on the given speed value, given actual power value, and corresponding rated power measurement value for each group.

[0021] In one embodiment, with the compressor at each given speed value and given system high pressure value, the rated power measurement values ​​are obtained, including:

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

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

[0024] The acquisition module is used to acquire the current speed and actual power consumption of the compressor when the compressor is running, and to acquire the current system high pressure value.

[0025] The processing module is used to determine the current rated power value of the compressor based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model;

[0026] The control module is used to control the operating status of the compressor based on the current actual power consumption and the current rated power.

[0027] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, performs the following steps:

[0028] When the compressor is running, obtain the compressor's current speed and actual power consumption, and obtain the current system high pressure value;

[0029] The current rated power value of the compressor is determined based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model.

[0030] The compressor's operating status is controlled based on the current actual power consumption and the current rated power.

[0031] A computer-readable storage medium having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0032] When the compressor is running, obtain the compressor's current speed and actual power consumption, and obtain the current system high pressure value;

[0033] The current rated power value of the compressor is determined based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model.

[0034] The compressor's operating status is controlled based on the current actual power consumption and the current rated power.

[0035] The aforementioned compressor operation control method, device, computer equipment, and storage medium, when the compressor is in operation, acquire the current speed value and current actual power consumption value of the compressor, acquire the current system high pressure value, 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, and control the operating state of the compressor based on the current actual power consumption value and the current rated power value.

[0036] Therefore, because parameters such as compressor internal speed, actual power consumption, and system high pressure are collected very quickly, compressor operation protection based on this data can identify compressor anomalies within milliseconds, thus enabling protection. Furthermore, when an anomaly is detected in the system containing the compressor, timely protection of the compressor operation is implemented to prevent damage, and there is no need to rely on external low-pressure sensors for anomaly detection, reducing compressor monitoring costs. Attached Figure Description

[0037] Figure 1 This is a flowchart illustrating the compressor operation control method in one embodiment;

[0038] Figure 2 This is a flowchart illustrating the compressor operation control steps in one embodiment;

[0039] Figure 3 This is a flowchart illustrating the steps involved in establishing a rated power calculation model in one embodiment.

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

[0041] Figure 5 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] In some exemplary embodiments, such as Figure 1 As shown, a method for controlling the operation of a compressor is provided. Taking the application of this method to a computer device as an example, the method includes the following steps:

[0044] Step 102: When the compressor is running, obtain the current speed value and the current actual power consumption value of the compressor.

[0045] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. Low-temperature, low-pressure refrigerant gas is drawn in through the suction pipe, compressed by a piston driven by a motor, and then discharged as high-temperature, high-pressure refrigerant gas through the exhaust pipe, providing power for the refrigeration cycle.

[0046] That is, when the compressor is running, the motor drives the piston to compress the compressor. 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 of the compressor completed per unit time, reflecting the operating status of the compressor, and the current actual power consumption value refers to the power consumed by the compressor under actual operating conditions, 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 operation, and the current speed value and the current actual power consumption value of the compressor are obtained.

[0049] Step 104: Obtain the current system high voltage value.

[0050] The system containing the compressor also includes a high-pressure sensor. A high-pressure sensor is a device specifically designed to measure and monitor high-pressure signals, typically used for pressure measurement in high-pressure environments. When the high-pressure sensor senses a pressure change, its internal pressure-sensitive element deforms, generating a system high-pressure value. Generally, pressures exceeding 7 Bar.A are considered high-pressure. The system containing the compressor should at least have a high-pressure sensor to protect the system from excessively high pressure and prevent system malfunctions. This high-pressure sensor generally does not require additional installation.

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

[0052] In other exemplary embodiments, the current system high pressure value can also be obtained by other measuring devices, or by some software applications, such as software applications that control the compressor, which can obtain the current system high pressure value.

[0053] Step 106: Determine the current rated power value of the compressor based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model.

[0054] 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 obtained in advance by fitting multiple sets of speed values, system high voltage values ​​and corresponding rated power measurement values.

[0055] The rated power value is the power value that the compressor should exhibit under normal operating conditions. That is, the power output of the compressor when it is working normally under standard operating conditions. The current rated power value of the compressor can be determined by the current speed value of the compressor and the current high pressure value of the system. The rated power value can also be used to determine whether the compressor is currently working normally or abnormally.

[0056] Specifically, after obtaining the current speed value of the compressor during operation and the current system high pressure value of the system in which the compressor is located, the current speed value and the current system high pressure value are input into the pre-established rated power calculation model to obtain the current rated power value of the compressor.

[0057] Step 108: Control the compressor's operating status based on the current actual power consumption and the current rated power.

[0058] Specifically, after obtaining the current rated power value, the actual power consumed by the compressor during operation is compared with the current rated power value to determine whether the compressor is malfunctioning. If malfunction occurs, the compressor operation can be cut off to prevent it from continuing to operate in an abnormal state and causing damage. Conversely, if no malfunction occurs, the compressor can continue to operate normally.

[0059] Specifically, comparing the compressor's current actual power consumption with its current rated power consumption can involve determining whether the current actual power consumption is less than the current rated power consumption by a first threshold, or whether the current actual power consumption is greater than the current rated power consumption by a second threshold. The first and second thresholds can be predetermined based on actual business needs, product requirements, or application scenarios, and serve as thresholds for assessing whether the compressor is malfunctioning. The first and second thresholds can be the same or different.

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

[0061] Therefore, because parameters such as compressor internal speed, actual power consumption, and system high pressure are collected very quickly, compressor operation protection based on this data can identify compressor anomalies within milliseconds, thus enabling protection. Furthermore, when an anomaly is detected in the system containing the compressor, timely protection of the compressor operation is implemented to prevent damage, and there is no need to rely on external low-pressure sensors for anomaly detection, thereby reducing compressor monitoring costs.

[0062] In some exemplary embodiments, controlling the compressor's operating state based on the current actual power consumption value and the current rated power value includes:

[0063] The compressor protection strategy is activated when the current actual power consumption is more than a first threshold lower than the current rated power, or when the current actual power consumption is more than a second threshold higher than the current rated power.

[0064] The first threshold and the second threshold are used to judge whether the compressor is malfunctioning. They can be predetermined based on 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 and the current rated power. The power threshold is then compared to a first threshold. If the first threshold is lower, the system containing the compressor may be in a first-type abnormal situation, and the compressor protection strategy is activated to prevent compressor damage. Alternatively, a power threshold can be calculated based on the current actual power consumption and the current rated power, and the power threshold is compared to a second threshold. If the second threshold is higher, the system containing the compressor may be in a second-type abnormal situation, and the compressor protection strategy can be activated to prevent compressor damage. The power threshold can be a power difference or a power ratio value.

[0066] Wherein, when the power threshold is a power difference, the first threshold and the second threshold can be the first difference and the second difference; when the power threshold is a power ratio, the first threshold and the second threshold can be the first ratio and the second ratio.

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

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

[0069] The power ratio value can be the ratio of the current actual power consumption value to the current rated power value.

[0070] The power ratio value can also be calculated based on the current actual power consumption and the current rated power value, and can be achieved through the following formula:

[0071]

[0072] Where Q is the power ratio value, P 额 P is the current rated power value. 实 This represents the current actual power consumption value.

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

[0074] In some exemplary embodiments, such as Figure 2 As shown, controlling the compressor's operating status based on the current actual power consumption and the current rated power also includes:

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

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

[0077] Specifically, a power threshold is calculated based on the current actual power consumption and the current rated power. The power threshold is then compared to see if it is less than the first threshold. If it is, it indicates that the system containing the compressor may be in a first-type abnormal situation. The compressor protection strategy is then activated. Here, the first-type abnormal situation may be that the system is in a vacuum state. The compressor protection strategy outputs the first prompt message indicating that the system is in a vacuum state, reminding the system to take appropriate action to avoid damage to the compressor.

[0078] Alternatively, a power threshold can be calculated based on the current actual power consumption and the current rated power. If the power threshold is greater than the second threshold, it indicates that the system containing the compressor may be in a second type of abnormal situation. The compressor protection strategy can then be activated. This second type of abnormal situation could be that the system is under excessive load or may be operating with liquid. The compressor protection strategy outputs a second warning message indicating that the system is under excessive load, reminding the system to take appropriate action to avoid damage to the compressor.

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

[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 excessive 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 more than or equal to a first ratio value, a first prompt message indicating that the system is in a vacuum state is output, or in response to the power ratio value being more than or equal to a second ratio value, a second prompt message indicating that the system is under excessive load is output.

[0082] The power ratio value can be the ratio of the current actual power consumption value to the current rated power value.

[0083] The power ratio value can also be calculated based on the current actual power consumption and the current rated power value, and can be achieved through the following formula:

[0084]

[0085] Where Q is the power ratio value, P 额P is the current rated power value. 实 This represents the current actual power consumption value.

[0086] In some exemplary embodiments, in response to the current actual power consumption value being more than a first threshold lower than the current rated power value, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value, the compressor protection strategy is activated, including the steps of: in response to the current actual power consumption value being more than a first threshold lower than the current rated power value and the duration exceeding a first time threshold, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value and the duration exceeding a second time threshold, the compressor protection strategy is activated.

[0087] Since modern compressors are generally of high performance and capable of withstanding certain pressure, the compressor protection strategy can be activated only when the duration of an abnormal condition reaches a certain threshold. Specifically, if the actual power consumption is more than a first threshold lower than the rated power and the duration exceeds a first time threshold, or if the actual power consumption is more than a second threshold higher than the rated power and the duration exceeds a second time threshold, then the compressor protection strategy will be activated. This is because short-term abnormal conditions do not require the compressor protection strategy to be activated, as such short-term abnormalities will not damage the compressor.

[0088] The first time threshold and the second time threshold are used to judge the limit value of the duration of the abnormal situation of the compressor. They 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. 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 based on 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 determines the current rated power value, where P 额 The current rated power value is given by K1 and K2, which 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 The current rated power value is given by K1 and K2, which 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. The specific formula is as follows:

[0095] P 额 = (0.24*a+0.085)*b+20*a+7

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

[0097] Step 302: With the compressor at each given speed value and given system high pressure value, obtain the rated power measurement values ​​respectively.

[0098] Step 304: Based on the given speed value, given actual power value and corresponding rated power measurement value for each group, establish a rated power calculation model.

[0099] The rated power calculation model can be obtained by fitting multiple sets of data, including a given speed value, a given system high pressure value, and the corresponding rated power measurement value. The rated power measurement value is obtained by reading the compressor data when it is at the given speed value and the given system high pressure value. Specifically, when the compressor starts operating at the given speed value and the given system high pressure value, it consumes power; the power consumption of the compressor is read to obtain the rated power measurement value corresponding to that given speed value and given system high pressure value.

[0100] Furthermore, by using multiple sets of given speed values, given system high pressure values, and corresponding rated power measurements, a fitting calculation is performed to obtain the rated power calculation model. That is, the compressor's speed value and the system high pressure value can be input into the rated power calculation model to calculate the compressor's corresponding rated power value.

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

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

[0103] Specifically, when the compressor is at the given speed and system high pressure, it begins normal operation. At this time, the compressor actually consumes power. The actual power consumed by the compressor at the given speed and system high pressure is read using a standard test bench and determined as the current rated power measurement value corresponding to the given speed and system high pressure. The standard test bench is connected to the compressor and is used during testing to read the actual power consumed by the compressor at the given speed and system high pressure.

[0104] Among them, the current given speed value and the current given system high voltage value are any one of multiple sets of given speed values ​​and given system high voltage values, and the corresponding current rated power measurement value is obtained for each set through this method.

[0105] In some specific embodiments, a compressor operation control method is provided, which will be described in detail below:

[0106] In a system with a high-pressure sensor, the following three parameters are known when the electric compressor is running: 1) compressor speed (rpm), 2) system high pressure (bar.A), and 3) actual power consumption (W). The rated power can be calculated by substituting the first two parameters into a fitted mathematical model of the rated power. Comparing the rated power with the actual power consumption determines whether the compressor protection strategy should be activated. For example, if the compressor speed is 1000 rpm and the system high pressure is 14 bar.A, the rated power is 456 W. If the actual power consumption is more than 50% lower than 456 W, it indicates the system is under vacuum. If the actual power consumption is more than 50% higher, it indicates the system load is too high, potentially indicating liquid accumulation during operation. Both of these conditions are abnormal, and the compressor can be shut off to prevent continuous operation in an abnormal state, which could damage the compressor. This protection strategy can continuously monitor throughout the entire operation phase.

[0107] It should be understood that although the steps in the flowchart above are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowchart above may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0108] In some exemplary embodiments, such as Figure 4As shown, a compressor operation control device 400 is provided, including: 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 speed value and the current actual power consumption value of the compressor when the compressor is running, 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 based on the current 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 status of the compressor based on the current actual power consumption value and the current rated power value.

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

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

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

[0115] In some exemplary embodiments, the processing module 404 according to P 额 = (K1*a+M1)*b+K2*a+M2 determines the current rated power value, where P 额 The current rated power value is given by K1 and K2, which 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 compressor operation control device 400 acquires each rated power measurement value when the compressor is at each set of given speed values ​​and given system high pressure values, and establishes a rated power calculation model based on each set 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 given current speed and a given current system high pressure, the compressor operation control device 400 reads the current rated power measurement value of the compressor through a standard test bench of the system in which the compressor is located.

[0118] Specific limitations regarding the compressor's operation control device can be found in the above description of the compressor's operation control method, and will not be repeated here. Each module in the aforementioned compressor operation control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the computer device's memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0119] In some exemplary embodiments, a computer device is provided, the internal structure of which can be as follows: Figure 5 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a compressor operation control method.

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

[0121] In some exemplary embodiments, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it performs the following steps: when the compressor is in operation, it acquires the current speed value and the current actual power consumption value of the compressor, and acquires the current system high pressure value; it determines 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; and it controls the operating state of the compressor based on 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 further implements the following steps: in response to the current actual power consumption value being more than a first threshold lower than the current rated power value, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value, it runs a compressor protection strategy.

[0123] In some exemplary embodiments, when the processor executes the computer program, it further implements the following steps: when the current actual power consumption value is more than or equal to a first threshold lower than the current rated power value, it outputs a first prompt message indicating that the system is in a vacuum state; when the current actual power consumption value is more than or equal to a second threshold higher than the current rated power value, it outputs a second prompt message indicating that the system is under excessive load.

[0124] In some exemplary embodiments, when the processor executes the computer program, it further implements the following steps: in response to the current actual power consumption value being more than a first threshold lower than the current rated power value and lasting for more than a first time threshold, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value and lasting for more than a second time threshold, the compressor protection strategy is executed.

[0125] In some exemplary embodiments, when the processor executes the computer program, it further implements the following steps: according to P 额 = (K1*a+M1)*b+K2*a+M2 determines the current rated power value, where P 额 The current rated power value is given by K1 and K2, which 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, it also performs the following steps: when the compressor is at each set of given speed values ​​and given system high pressure values, it acquires each rated power measurement value respectively, and establishes a rated power calculation model based on each set 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, it also performs the following steps: 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 read through a standard test bench of the system in which the compressor is located.

[0128] In some exemplary embodiments, a computer-readable storage medium is provided having a computer program stored thereon. When the computer program is executed by a processor, it performs the following steps: 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 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; and controlling the operating state of the compressor based on the current actual power consumption value and the current rated power value.

[0129] In some exemplary embodiments, when the computer program is executed by the processor, it further implements the following steps: in response to the current actual power consumption value being more than a first threshold lower than the current rated power value, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value, it runs a compressor protection strategy.

[0130] In some exemplary embodiments, when the computer program is executed by the processor, it further implements the following steps: when the current actual power consumption value is more than or equal to a first threshold lower than the current rated power value, outputting a first prompt message indicating that the system is in a vacuum state; and when the current actual power consumption value is more than or equal to a second threshold higher than the current rated power value, outputting a second prompt message indicating that the system is under excessive load.

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

[0132] In some exemplary embodiments, when the computer program is executed by the processor, it further implements the following steps: according to P 额 = (K1*a+M1)*b+K2*a+M2 determines the current rated power value, where P 额 The current rated power value is given by K1 and K2, which 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, it further performs the following steps: when the compressor is at each set of given speed values ​​and given system high pressure values, obtain each rated power measurement value respectively, and establish a rated power calculation model based on each set 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, it also performs the following steps: 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 read through a standard test bench of the system in which the compressor is located.

[0135] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, 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. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0136] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for controlling the operation of a compressor, the method comprising: When the compressor is running, the current speed and actual power consumption of the compressor are obtained, and the current system high pressure value is also obtained. The current rated power value of the compressor is determined based on the current speed value, the current system high pressure value, and the pre-established rated power calculation model. The operating status of the compressor is controlled based on the current actual power consumption value and the current rated power value. When the compressor is at each set given speed value and given system high pressure value, the rated power measurement value is obtained respectively; Based on the given speed value, given actual power value and corresponding rated power measurement value of each group, establish the rated power calculation model; The step of determining 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 includes: according to Determine the current rated power value, wherein, The current rated power value, and For different coefficients, and For different constants, The current system high voltage value, The current rotational speed value.

2. The method according to claim 1, characterized in that, The step of controlling the operating state of the compressor based on the current actual power consumption value and the current rated power value includes: In response to the current actual power consumption value being more than a first threshold lower than the current rated power value, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value, the compressor protection strategy is activated.

3. The method according to claim 2, characterized in that, The step of controlling the compressor's operating state based on the current actual power consumption value and the current rated power value further includes: When the current actual power consumption value is more than a first threshold lower than the current rated power value, a first prompt message indicating 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, a second prompt message indicating that the system is under excessive load is output.

4. The method according to claim 2, characterized in that, The compressor protection strategy is activated in response to the current actual power consumption being more than a first threshold lower than the current rated power value, or in response to the current actual power consumption being more than a second threshold higher than the current rated power value, including: The compressor protection strategy is activated in response to the current actual power consumption value being more than a first threshold lower than the current rated power value for a duration exceeding a first time threshold, or in response to the current actual power consumption value being more than a second threshold higher than the current rated power value for a duration exceeding a second time threshold.

5. The method according to claim 1, characterized in that, The process involves obtaining rated power measurements when the compressor is at each given speed and system high pressure value, including: When the compressor is at the current given speed value and the current given system high pressure value, the current rated power measurement value of the compressor is obtained by reading it through the standard test bench of the system where the compressor is located.

6. An operation control device for a compressor that implements the operation control method for a compressor as described in any one of claims 1 to 5, characterized in that, The device includes: The acquisition module is used to acquire the current speed value and the current actual power consumption value of the compressor when the compressor is running, and to acquire the current system high pressure value. The processing module is used to 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. The control module is used to control the operating status of the compressor based on the current actual power consumption value and the current rated power value.

7. 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, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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