Method, device, electronic device and storage medium for determining restart control parameters of a compressor

Abstract

The present disclosure provides a method and device for determining restart control parameters of a compressor. The method is applicable to the field of air conditioning technology and includes: obtaining the current external environmental temperature of the compressor, the current cumulative number of restart failures, and the duration of the fault, determining the current restart frequency of the compressor according to the cumulative number of restart failures and the duration of the fault, when the restart frequency is less than or equal to a set restart frequency threshold, determining the target restart control parameters for the next restart according to the external environmental temperature, and controlling the compressor to perform the next restart according to the target restart control parameters. In the embodiments of the present application, when the restart frequency is lower than the set restart frequency threshold, the influence of the external environmental temperature can be considered to determine the target restart control parameters for the next restart, so that the target restart control parameters of the compressor are related to the external environmental temperature, realizing the adaptive adjustment of the restart control parameters following the external environmental temperature and improving the possibility of successful restart of the compressor.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioners, and in particular, to a method, device, electronic device, and storage medium for determining restart control parameters of a compressor. Background Art

[0002] The compressor is an important component of an air conditioner. The restart control parameters of the compressor have a great impact on whether the compressor can be restarted successfully. During the restart process, due to the individual differences of the compressor itself or the influence of the external unit load, restart failure may occur. How to improve the success rate of compressor restart has become a problem to be solved. Summary of the Invention

[0003] Embodiments of the present disclosure provide a method, device, electronic device, and storage medium for determining restart control parameters of a compressor.

[0004] A first aspect embodiment of the present disclosure proposes a method for determining restart control parameters of a compressor, including:

[0005] Obtain the current external environmental temperature of the compressor;

[0006] Obtain the current cumulative number of restart failures and the duration of the failure of the compressor;

[0007] Determine the current restart frequency of the compressor according to the cumulative number of restart failures and the duration of the failure;

[0008] When the restart frequency is less than or equal to a set restart frequency threshold, determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature;

[0009] Control the compressor to perform the next restart according to the target restart control parameter.

[0010] In an embodiment of the present disclosure, the process of obtaining the duration of the failure includes:

[0011] Obtain the timestamp of the current restart failure of the compressor;

[0012] Obtain the timestamp of the first restart failure of the compressor;

[0013] Determine the duration of the failure according to the timestamp of the current restart failure and the timestamp of the first restart failure.

[0014] In an embodiment of the present disclosure, determining the target restart control parameter for the next restart of the compressor according to the external environmental temperature includes:

[0015] Compare the external environmental temperature with a set temperature threshold to determine the comparison result;

[0016] Determine a target parameter correction threshold for the next restart of the compressor according to the comparison result;

[0017] Determine the target restart control parameter according to the target parameter correction threshold and the current restart control parameter at the current restart.

[0018] In an embodiment of the present disclosure, determining the target parameter correction threshold for the next restart of the compressor according to the comparison result includes:

[0019] When the external environmental temperature is less than or equal to the temperature threshold, determine the low-load parameter correction threshold of the compressor as the target parameter correction threshold; or

[0020] When the external environmental temperature is greater than the temperature threshold, determine the high-load parameter correction threshold of the compressor as the target parameter correction threshold.

[0021] In an embodiment of the present disclosure, determining the target restart control parameter according to the target parameter correction threshold and the current restart control parameter at the current restart includes:

[0022] Obtain a parameter increment according to the current restart frequency and the target parameter correction threshold;

[0023] Determine the target restart control parameter according to the parameter increment and the current restart control parameter.

[0024] In an embodiment of the present disclosure, the method further includes:

[0025] When the restart frequency is greater than the restart frequency threshold, stop executing the restart process and / or send a reminder message indicating restart failure.

[0026] In an embodiment of the present disclosure, obtaining the current cumulative number of restart failures and the failure duration of the compressor includes:

[0027] Obtain the restart running duration of the current restart of the compressor;

[0028] When the restart running duration is greater than the set startup failure determination duration and the compressor is out of step, determine that the current restart of the compressor fails, and update the cumulative number of restart failures and the failure duration.

[0029] An embodiment of the second aspect of the present disclosure provides a device for determining a restart control parameter of a compressor, including:

[0030] A first acquisition module, configured to acquire the current external environmental temperature of the compressor;

[0031] A second acquisition module, configured to acquire the current cumulative number of compressor restart failures and the duration of the failure;

[0032] A first determination module, configured to determine the current restart frequency of the compressor according to the cumulative number of restart failures and the duration of the failure;

[0033] A second determination module, configured to determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature when the restart frequency is less than a set restart frequency threshold;

[0034] A control module, configured to control the compressor to perform the next restart according to the target restart control parameter.

[0035] In an embodiment of the present disclosure, the second acquisition module is further configured to:

[0036] Acquire the timestamp of the current restart failure of the compressor;

[0037] Acquire the timestamp of the first restart failure of the compressor;

[0038] Determine the duration of the failure according to the timestamp of the current restart failure and the timestamp of the first restart failure.

[0039] In an embodiment of the present disclosure, the second determination module is further configured to:

[0040] Compare the external environmental temperature with a set temperature threshold to determine the comparison result;

[0041] Determine the target parameter correction threshold for the next restart of the compressor according to the comparison result;

[0042] Determine the target restart control parameter according to the target parameter correction threshold and the current restart control parameter at the current restart.

[0043] In an embodiment of the present disclosure, the second determination module is further configured to:

[0044] When the external environmental temperature is less than or equal to the temperature threshold, determine that the low-load parameter correction threshold of the compressor is the target parameter correction threshold; or

[0045] When the external environmental temperature is greater than the temperature threshold, determine that the high-load parameter correction threshold of the compressor is the target parameter correction threshold.

[0046] In an embodiment of the present disclosure, the second determination module is further configured to:

[0047] Obtain a parameter increment according to the current restart frequency and the target parameter correction threshold.

[0048] Determine the target restart control parameter according to the parameter increment and the current restart control parameter.

[0049] In one embodiment of the present disclosure, the control module is further configured to:

[0050] When the restart frequency is greater than the restart frequency threshold, stop continuing the restart process for the compressor, and / or send a reminder message indicating restart failure.

[0051] In one embodiment of the present disclosure, the second acquisition module is further configured to:

[0052] Obtain the restart running duration of the current restart of the compressor.

[0053] When the restart running duration is greater than the set startup failure determination duration and the compressor experiences out-of-step, determine that the current restart of the compressor fails, and update the cumulative restart failure count and the fault duration.

[0054] An embodiment of the third aspect of the present disclosure provides an electronic device, including: a processor; a memory for storing executable instructions of the processor; wherein, the processor is configured to execute the instructions to implement the method for determining the restart control parameter of the compressor proposed in the first aspect embodiment of the present disclosure.

[0055] An embodiment of the fourth aspect of the present disclosure provides a non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of the electronic device, enabling the electronic device to execute the method for determining the restart control parameter of the compressor proposed in the first aspect embodiment of the present disclosure.

[0056] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects: record the cumulative restart failure count and the fault duration, so as to determine the restart frequency. When the restart frequency is lower than the set restart frequency threshold, it is possible to consider the influence of the external environmental temperature to determine the target restart control parameter for the next restart of the compressor, making the target restart control parameter of the compressor related to the external environmental temperature, and realizing that the restart control parameter, i.e., the Kp parameter, can be adaptively adjusted following the external environmental temperature, thereby increasing the possibility of successful restart of the compressor.

[0057] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0059] Figure 1 FIG. is a schematic flowchart of a method for determining restart control parameters of a compressor provided by an embodiment of the present disclosure;

[0060] Figure 2 FIG. is a schematic flowchart of another method for determining restart control parameters of a compressor provided by an embodiment of the present disclosure;

[0061] Figure 3 FIG. is a schematic flowchart of another method for determining restart control parameters of a compressor provided by an embodiment of the present disclosure;

[0062] Figure 4 FIG. is a schematic flowchart of another method for determining restart control parameters of a compressor provided by an embodiment of the present disclosure;

[0063] Figure 5 FIG. is a schematic structural diagram of a device for determining restart control parameters of a compressor provided by an embodiment of the present disclosure;

[0064] Figure 6 FIG. is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. Detailed Description of the Embodiment

[0065] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present disclosure. On the contrary, they are only examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0066] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0067] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "when" as used herein may be interpreted as "when...", "when...", or "in response to determining".

[0068] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation of the present disclosure.

[0069] A method, apparatus, electronic device, and storage medium for determining restart control parameters of a compressor according to embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0070] Figure 1 It is a schematic flowchart of a method for determining restart control parameters of a compressor provided by an embodiment of the present application. As Figure 1 shown, the method for determining restart control parameters of the compressor includes but is not limited to the following steps:

[0071] S101, obtain the current external ambient temperature of the compressor.

[0072] In an embodiment of the present application, a temperature sensor may be deployed on the outdoor unit, and the external ambient temperature may be detected through the temperature sensor. The compressor and the temperature sensor on the outdoor unit may be connected wirelessly or wiredly, and the temperature sensor may report the detected external ambient temperature to the compressor regularly or periodically. Alternatively, the compressor may read the external ambient temperature detected by the temperature sensor regularly or periodically.

[0073] Optionally, there may be one or more temperature sensors. In the case of multiple temperature sensors, the average value may be determined as the external ambient temperature by averaging the temperatures collected by the temperature sensors.

[0074] It can be understood that the sampling signal of the temperature sensor is obtained, and the sampling signal is filtered. Further, the filtered sampling signal is subjected to analog-to-digital (AD) conversion to obtain the external ambient temperature.

[0075] S102, obtain the current cumulative number of restart failures and the duration of the failure of the compressor.

[0076] During the operation of the air conditioner, compressor failures may occur. After a failure occurs, to ensure that the air conditioner can continue to operate, the compressor can be restarted to resolve or recover from the failure. For example, the compressor may experience failures such as overheating or overvoltage, and overheat protection or overvoltage protection can be achieved through restarting.

[0077] In the embodiments of the present application, during the restart phase of the compressor, the number of compressor restart failures can be counted to obtain the current cumulative number of compressor restart failures. It can be understood that the cumulative number of restart failures is the cumulative value for one restart phase.

[0078] Optionally, a counter can be set in the compressor. After the compressor receives a restart command, the counter is started synchronously, and the count value of the counter is zero at this time. Whenever the compressor fails to restart once, the count value of the counter is incremented by 1, and thus the cumulative number of restart failures can be obtained.

[0079] Optionally, at the start of the compressor restart, the start time of the restart is recorded, and based on the start time of the restart and the time of the current restart failure, the fault duration of the compressor is determined.

[0080] S103, Determine the current restart frequency of the compressor according to the cumulative number of restart failures and the fault duration.

[0081] Obtain the ratio of the cumulative number of restart failures to the fault duration, and determine this ratio as the current restart frequency of the compressor.

[0082] S104, When the restart frequency is less than the set restart frequency threshold, determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature.

[0083] It can be understood that the restart frequency threshold is the maximum restart frequency that the compressor can withstand. If the maximum restart frequency is exceeded and the compressor is continued to be restarted, it will often cause certain damage to the compressor. Therefore, it is necessary to limit that when the restart frequency of the compressor is lower than this restart frequency threshold, the next restart can be continued.

[0084] In the embodiments of the present application, when the frequency of compressor restart failures is relatively high, it can be determined that the compressor has entered a frequent restart state. When the compressor enters the frequent restart state, if the compressor is continuously restarted according to the default restart control parameter, the compressor may not be successfully restarted, and certain damage will be caused to the compressor.

[0085] It should be noted that the restart control parameter in the embodiment of the present application can be the proportional regulation coefficient Kp parameter in a Proportion-Integral-Differential (PID) regulator. This Kp parameter can play a role in accelerating the system response speed, improving the system regulation accuracy, and quickly adjusting the error in the PID regulator.

[0086] In implementation, the external environmental temperature is an important factor affecting the successful restart of the compressor. In order to successfully restart the compressor, in the embodiment of the present application, when the restart frequency is less than the set restart frequency threshold, the target restart control parameter for the next restart of the compressor can be determined according to the external environmental temperature, so that the target restart control parameter of the compressor can be related to the external environmental temperature. Furthermore, considering the external environmental temperature, the compressor is restarted for the next time, thereby increasing the possibility of a successful restart of the compressor.

[0087] Optionally, a mapping relationship between the external environmental temperature and the restart control parameter can be established in advance. Further, after obtaining the external environmental temperature, by querying this mapping relationship, the restart control parameter mapped to this external environmental temperature can be obtained. In the embodiment of the present application, the restart control parameter mapped to the external environmental temperature can be determined as the target restart control parameter for the next restart of the compressor.

[0088] S105, control the compressor to perform the next restart according to the target restart control parameter.

[0089] After obtaining the target restart control parameter for the next restart, in order to make the next restart of the compressor as successful as possible, it is necessary to control the compressor to perform the next restart according to the target restart control parameter. That is to say, when restarting for the next time, the compressor needs to use the target restart control parameter as an input parameter of the PID regulator.

[0090] In the embodiments of the present application, during the restart process of the compressor, the current external environmental temperature, the cumulative number of restart failures, and the duration of the fault are obtained. Further, according to the cumulative number of restart failures and the duration of the fault, the restart frequency of the compressor is determined. When the restart frequency of the compressor is less than the set restart frequency threshold, according to the external environmental temperature, the target restart control parameter for the next restart of the compressor is determined, and the compressor is controlled to perform the next restart according to the target restart control parameter. In the embodiments of the present application, the cumulative number of restart failures and the duration of the fault are recorded, so that the restart frequency can be determined. When the restart frequency is lower than the set restart frequency threshold, the influence of the external environmental temperature can be considered to determine the target restart control parameter for the next restart of the compressor, so that the target restart control parameter of the compressor can be related to the external environmental temperature, realizing that the restart control parameter, that is, the Kp parameter, can be adaptively adjusted following the external environmental temperature, thereby increasing the possibility of successful restart of the compressor.

[0091] Figure 2 It is a flowchart showing another method for determining the restart control parameter of the compressor provided by the embodiments of the present application. As Figure 2 shown, the method for determining the restart control parameter of the compressor includes but is not limited to the following steps:

[0092] S201, obtain the current external environmental temperature of the compressor.

[0093] For the specific introduction of step S201, reference can be made to the relevant content in the above embodiments, such as the description of step S101, which will not be elaborated here.

[0094] S202, obtain the current cumulative number of restart failures of the compressor.

[0095] Optionally, certain restart failure determination conditions are preset. When the current restart of the compressor meets the restart failure determination conditions, it is determined that the current restart of the compressor fails, and the cumulative number of restart failures is updated. For example, the counter can be incremented by 1.

[0096] In some implementations, the restart running duration of the current restart of the compressor is obtained. When the restart running duration is greater than the set startup failure determination duration and the compressor experiences out-of-step, it is determined that the current restart of the compressor fails, and the cumulative number of restart failures is updated. That is to say, the preset restart failure determination condition can be: the restart running duration is greater than the set startup failure determination duration and the compressor experiences out-of-step.

[0097] In the embodiments of the present application, the operating parameters of the compressor can be monitored. For example, it includes the compressor startup gain, the current loop bandwidth parameter, the switching frequency, etc. When the above operating parameters are abnormal, it can be determined that the compressor experiences out-of-step. For example, when the switching frequency exceeds the set frequency limit, it can be determined that the compressor experiences out-of-step.

[0098] S203. Obtain the time stamp of the current restart failure of the compressor and the time stamp of the first restart failure.

[0099] S204. Determine the current failure duration of the compressor according to the time stamp of the current restart failure and the time stamp of the first restart failure.

[0100] In the embodiment of the present application, whenever it is determined that the compressor restart fails, a time stamp can be recorded, and this time stamp can be used to determine the failure duration. Optionally, the time stamp of the first restart failure during the restart process of the compressor can be determined. Further, according to the time stamp of the first restart failure and the time stamp of the current restart failure, the failure duration of the compressor is determined. That is to say, the time stamp of the current restart failure is subtracted from the time stamp of the first restart failure to obtain the failure duration of the compressor.

[0101] S205. Determine the current restart frequency of the compressor according to the cumulative number of restart failures and the failure duration.

[0102] S206. When the restart frequency is less than the set restart frequency threshold, determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature.

[0103] S207. Control the compressor to perform the next restart according to the target restart control parameter.

[0104] For the specific introduction of steps S205 - S207, reference can be made to the relevant content in the above embodiments, such as the description of steps S103 - S105, which will not be elaborated here.

[0105] In the embodiment of the present application, the cumulative number of restart failures and the failure duration are recorded, so that the restart frequency can be determined. When the restart frequency is lower than the set restart frequency threshold, the influence of the external environmental temperature can be considered to determine the target restart control parameter for the next restart of the compressor, so that the target restart control parameter of the compressor can be related to the external environmental temperature, realizing that the restart control parameter, that is, the Kp parameter, can be adaptively adjusted according to the external environmental temperature, thereby increasing the possibility of successful restart of the compressor.

[0106] Figure 3 It is a schematic flowchart of another method for determining the restart control parameter of the compressor provided by the embodiment of the present application. As Figure 3 shown, the method for determining the restart control parameter of the compressor includes but is not limited to the following steps:

[0107] S301. Obtain the current external environmental temperature of the compressor.

[0108] For the specific introduction of step S301, refer to the relevant content in the above embodiments, such as the description of step S101, which will not be elaborated here.

[0109] S302. Obtain the current cumulative number of failed restarts and the duration of the fault of the compressor.

[0110] For the specific introduction of step S302, refer to the relevant content in the above embodiments, such as the description of step S102 or steps S202 - S204, which will not be elaborated here.

[0111] S303. Determine the current restart frequency of the compressor according to the cumulative number of failed restarts and the duration of the fault.

[0112] For the specific introduction of step S303, refer to the relevant content in the above embodiments, such as the description of step S103, which will not be elaborated here.

[0113] S304. When the restart frequency of the compressor is less than or equal to the set restart frequency threshold, compare the external environmental temperature with the set temperature threshold to determine the comparison result, and determine the target parameter correction threshold for the next restart of the compressor according to the comparison result.

[0114] In the embodiment of the present application, a temperature threshold is preset in advance. After obtaining the external environmental temperature, the external environmental temperature can be compared with the set temperature threshold to determine the comparison result between the external environmental temperature and the temperature threshold, and this comparison result can reflect the magnitude relationship between the external environmental temperature and the temperature threshold. Further, the target parameter correction threshold for the next restart of the compressor can be determined according to the comparison result.

[0115] By setting the temperature threshold, the temperature range where the external environmental temperature is located can be determined, and different temperature ranges can correspond to different parameter correction thresholds, so as to make the adjustment of the restart control parameters more accurate.

[0116] Optionally, the temperature threshold can be one or more. In the case of multiple temperature thresholds, a temperature range can be determined based on adjacent temperature thresholds, and the target parameter correction threshold corresponding to the external environmental temperature can be determined according to the temperature range of the external environmental temperature.

[0117] S305. Determine the target restart control parameter according to the target parameter correction threshold and the current restart control parameter at the current restart, and control the compressor to perform the next restart according to the target restart control parameter.

[0118] In some implementations, a parameter increment can be obtained according to the cumulative number of failed restarts and the target parameter correction threshold. Further, the target restart control parameter can be determined according to the parameter increment and the current restart control parameter.

[0119] For example, obtain the product of the cumulative number of restart failures and the target parameter correction threshold, and use this product as the parameter increment. Further, obtain the sum of the parameter increment and the current restart control parameter, and determine the target restart control parameter based on this sum value.

[0120] Taking the target restart control parameter as the Kp parameter as an example, the target restart control parameter can be determined using the following formula:

[0121] Target restart Kp parameter = Current restart Kp parameter + Target parameter correction threshold * Cumulative number of restart failures.

[0122] S306. When the restart frequency of the compressor is greater than the set restart frequency threshold, stop continuing the restart process for the compressor, and / or send a reminder message for restart failure.

[0123] When the restart frequency of the compressor is greater than or equal to the set restart frequency threshold, that is, when the current restart frequency of the compressor reaches the maximum restart frequency of the compressor, it indicates that after multiple adjustments of the Kp parameter, the compressor still cannot be successfully restarted. To avoid the harm caused by frequent restarting to the compressor, the restart process for the compressor can be stopped.

[0124] Optionally, control the compressor to send a reminder message for restart failure. In some implementations, the reminder message can be displayed on the display panel of the air conditioner, or on the remote control of the air conditioner, or a reminder message can be sent through the buzzer of the air conditioner, or a reminder message can be sent to the terminal device associated with the air conditioner.

[0125] In the embodiments of the present application, the cumulative number of restart failures and the duration of the fault are recorded, so that the restart frequency can be determined. When the restart frequency is lower than the set restart frequency threshold, the target restart control parameter for the next restart of the compressor can be determined considering the influence of the external environmental temperature, so that the target restart control parameter of the compressor can be related to the external environmental temperature, realizing that the restart control parameter, that is, the Kp parameter, can be adaptively adjusted following the external environmental temperature, thereby increasing the possibility of successful restart of the compressor.

[0126] Figure 4 It is a flowchart showing another method for determining the restart control parameter of the compressor provided by the embodiments of the present application. As Figure 4 shown, the method for determining the restart control parameter of the compressor includes but is not limited to the following steps:

[0127] S401. Obtain the current external environmental temperature of the compressor.

[0128] For the specific introduction of step S401, reference can be made to the relevant content in the above embodiments, such as the description of step S101, and details will not be elaborated here.

[0129] S402. Obtain the restart running duration of the compressor for this restart.

[0130] S403. When the restart running duration is greater than the set restart failure determination duration and the compressor loses synchronization, determine that the compressor fails in this restart, and update the cumulative restart failure count.

[0131] S404. Determine whether the external environmental temperature is greater than the set temperature threshold.

[0132] It can be understood that the external environmental temperature can reflect the load condition. The higher the external environmental temperature, the greater the load tends to be, and the lower the external environmental temperature, the smaller the load tends to be. If the external environmental temperature is greater than the set temperature threshold, it can indicate a higher load. If the external environmental temperature is less than or equal to the set temperature threshold, it can indicate a lower load. In the embodiments of the present application, when the external environmental temperature is low, a low-load parameter correction threshold can be corresponding, and when the external environmental temperature is high, a high-load parameter correction threshold can be corresponding.

[0133] S405. Determine the restart frequency of the compressor according to the cumulative restart failure count and the fault duration.

[0134] S406. Determine whether the current restart frequency of the compressor is greater than the set restart frequency threshold.

[0135] If the restart frequency is less than or equal to the set restart frequency threshold and the external environmental temperature is less than or equal to the temperature threshold, execute step S407.

[0136] If the restart frequency is less than or equal to the set restart frequency threshold and the external environmental temperature is greater than or equal to the temperature threshold, execute step S408.

[0137] If the restart frequency is greater than the set restart frequency threshold, execute step S409.

[0138] It can be understood that when the external environmental temperature is greater than the set temperature threshold, continue to execute S406. When the external environmental temperature is less than or equal to the set temperature threshold, still execute S406. Figure 4 Although two S406 are shown, it is actually one step.

[0139] S407. Determine the low-load parameter correction threshold of the compressor as the target parameter correction threshold, and determine the target restart control parameter according to the target parameter correction threshold and the restart frequency at this restart.

[0140] Obtain the product of the restart frequency and the low-load parameter correction threshold, use this product as the parameter increment. Further, obtain the sum of the parameter increment and the current restart control parameter, and determine this sum as the target restart control parameter.

[0141] Taking the target restart control parameter as the Kp parameter as an example, the target restart control parameter can be determined using the following formula:

[0142] Target restart Kp parameter = Current restart Kp parameter + Low load parameter correction threshold * Restart frequency.

[0143] S408. Determine the high load parameter correction threshold of the compressor as the target parameter correction threshold, and determine the target restart control parameter according to the target parameter correction threshold and the restart frequency at the current restart.

[0144] Obtain the product of the cumulative number of restart failures and the high load parameter correction threshold, use this product as the parameter increment. Further, obtain the sum of the parameter increment and the current restart control parameter, and determine this sum as the target restart control parameter.

[0145] Taking the target restart control parameter as the Kp parameter as an example, the target restart control parameter can be determined using the following formula:

[0146] Target restart Kp parameter = Current restart Kp parameter + High load parameter correction threshold * Restart frequency.

[0147] S409. Stop continuing to execute the restart process for the compressor, and / or send a reminder message for restart failure.

[0148] For the specific introduction of step S408, reference can be made to the relevant content in the above embodiments such as the specific introduction of S306, which will not be elaborated here.

[0149] S410. Control the compressor to perform the next restart according to the target restart control parameter.

[0150] Exemplarily, it is set that the determination duration for compressor startup failure is 2 minutes (min), and the temperature threshold of the compressor can be taken as 43 degrees (°C). This temperature threshold is used to partition the external environment temperature to facilitate obtaining different parameter correction thresholds. The restart frequency threshold of the compressor can be set to 0.1 times per second, the high load correction threshold of the Kp parameter can be 400, and the low load correction threshold of the Kp parameter can be 300.

[0151] When the restart running duration of the compressor at the current restart exceeds 2 min and the compressor experiences an out-of-step situation, it can be determined that the current restart of the compressor fails, and the cumulative number of restart failures can be incremented by 1. If the collected external environment temperature is 45 °C and the restart frequency of the compressor is 0.05 times per second. At this time, the external environment temperature is greater than 43 °C and the restart frequency is less than 0.1 times per second, then the correction parameter threshold can be determined as the high load correction threshold of 400.

[0152] If the collected external environmental temperature is 40°C, the restart frequency of the compressor is 0.05 times per second. At this time, the external environmental temperature is less than 43°C, and the restart frequency is less than 0.1 times per second, then the correction parameter threshold can be determined as the low-load correction threshold 300.

[0153] If the collected external environmental temperature is 42°C, the restart frequency of the compressor is 0.2 times per second. In the embodiment of the present application, although the external environmental temperature is less than 43°C at this time, the restart frequency is greater than 0.1 times per second, then it can be determined that the compressor enters the fault locking state, stops restarting the compressor continuously, and / or sends a reminder message of restart failure.

[0154] In the embodiment of the present application, the cumulative number of restart failures and the fault duration are recorded, so that the restart frequency can be determined. When the restart frequency is lower than the set restart frequency threshold, the influence of the external environmental temperature can be considered to determine the target restart control parameter for the next restart of the compressor, so that the target restart control parameter of the compressor can be related to the external environmental temperature, realizing that the restart control parameter, that is, the Kp parameter, can be adaptively adjusted following the external environmental temperature, thereby increasing the possibility of successful restart of the compressor. Moreover, since the external environmental temperature can reflect the load condition, referring to the influence of the external environmental temperature can reduce the probability of restart failure under different loads.

[0155] To implement the above embodiment, the embodiment of the present disclosure also proposes a device for determining the restart control parameter of a compressor. Figure 5 As a schematic structural diagram of a device for determining the restart control parameter of a compressor provided by the embodiment of the present disclosure, the device 500 for determining the restart control parameter of a compressor includes: a first acquisition module 510, a second acquisition module 520, a first determination module 530, a second determination module 540, and a control module 550.

[0156] The first acquisition module 510 is configured to acquire the current external environmental temperature of the compressor;

[0157] The second acquisition module 520 is configured to acquire the current cumulative number of restart failures and the fault duration of the compressor;

[0158] The first determination module 530 is configured to determine the current restart frequency of the compressor according to the cumulative number of restart failures and the fault duration;

[0159] The second determination module 540 is configured to determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature when the restart frequency is less than the set restart frequency threshold;

[0160] The control module 550 is configured to control the compressor to perform the next restart according to the target restart control parameter.

[0161] In one embodiment of the present disclosure, the second acquisition module 520 is further configured to:

[0162] Obtain the timestamp when the compressor fails to restart this time;

[0163] Obtain the timestamp when the compressor first fails to restart;

[0164] Determine the duration of the fault according to the timestamp when the compressor fails to restart this time and the timestamp when the compressor first fails to restart.

[0165] In one embodiment of the present disclosure, the second determination module 540 is further configured to:

[0166] Compare the external environmental temperature with a set temperature threshold to determine the comparison result;

[0167] Determine the target parameter correction threshold for the next restart of the compressor according to the comparison result;

[0168] Determine the target restart control parameter according to the target parameter correction threshold and the current restart control parameter during this restart.

[0169] In one embodiment of the present disclosure, the second determination module 540 is further configured to:

[0170] When the external environmental temperature is less than or equal to the temperature threshold, determine that the low-load parameter correction threshold of the compressor is the target parameter correction threshold; or

[0171] When the external environmental temperature is greater than the temperature threshold, determine that the high-load parameter correction threshold of the compressor is the target parameter correction threshold.

[0172] In one embodiment of the present disclosure, the second determination module 540 is further configured to:

[0173] Obtain a parameter increment according to the current restart frequency and the target parameter correction threshold;

[0174] Determine the target restart control parameter according to the parameter increment and the current restart control parameter.

[0175] In one embodiment of the present disclosure, the control module 550 is further configured to:

[0176] When the restart frequency is greater than the restart frequency threshold, stop continuing to execute the restart process for the compressor, and / or send a reminder message indicating that the restart fails.

[0177] In one embodiment of the present disclosure, the second acquisition module 520 is further configured to:

[0178] Obtain the restart running duration of the compressor for this restart;

[0179] When the restart running duration is greater than the set startup failure determination duration and the compressor experiences out-of-step, determine that the compressor fails to restart for this time, and update the cumulative restart failure count and the fault duration.

[0180] In the embodiments of the present application, the cumulative restart failure count and the fault duration are recorded, so that the restart frequency can be determined. When the restart frequency is lower than the set restart frequency threshold, the target restart control parameter for the next restart of the compressor can be determined considering the influence of the external environmental temperature, making the target restart control parameter of the compressor related to the external environmental temperature, realizing that the restart control parameter, i.e., the Kp parameter, can be adaptively adjusted following the external environmental temperature, thereby increasing the possibility of successful restart of the compressor. Moreover, since the external environmental temperature can reflect the load condition, referring to the influence of the external environmental temperature can reduce the probability of restart failure under different loads.

[0181] According to the third aspect of the embodiments of the present disclosure, there is also provided an electronic device, including: a processor; a memory for storing executable instructions of the processor, wherein the processor is configured to execute the instructions to implement the method for determining the restart control parameter of the compressor as described above.

[0182] To implement the above embodiments, the present disclosure also proposes a storage medium.

[0183] Wherein, when the instructions in the storage medium are executed by the processor of the electronic device, the electronic device can execute the method for determining the restart control parameter of the compressor as described above.

[0184] Figure 6 It is a block diagram of an electronic device shown according to an exemplary embodiment. Figure 6 The electronic device shown is only an example and should not impose any limitation on the functions and usage scope of the embodiments of the present disclosure.

[0185] Such as Figure 6As shown, the electronic device 600 includes a processor 611, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 612 or a program loaded from a memory 616 into a random access memory (RAM) 613. In the RAM 613, various programs and data required for the operation of the electronic device 600 are also stored. The processor 611, the ROM 612, and the RAM 613 are connected to each other via a bus 614. An input / output (I / O) interface 615 is also connected to the bus 614.

[0186] The following components are connected to the I / O interface 615: a memory 616 including a hard disk, etc.; and a communication part 617 including a network interface card such as a LAN (Local Area Network) card, a modem, etc., and the communication part 617 performs communication processing via a network such as the Internet; a drive 618 is also connected to the I / O interface 615 as needed.

[0187] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program carried on a computer-readable medium, and the computer program includes program codes for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 617. When the computer program is executed by the processor 611, the above functions defined in the method of the present disclosure are executed.

[0188] In an exemplary embodiment, a storage medium including instructions is also provided, such as a memory including instructions, and the above instructions can be executed by the processor 611 of the electronic device 600 to complete the above method. Optionally, the storage medium may be a non-transitory computer-readable storage medium. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0189] In this disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program, which can be used by or in conjunction with an instruction execution system, apparatus, or device. And in this disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical fiber cable, RF, etc., or any suitable combination of the above.

[0190] Other embodiments of the present invention will be readily apparent to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include known common knowledge or conventional technical means in the technical field not disclosed in this disclosure. The specification and examples are only considered exemplary, and the true scope and spirit of this disclosure are pointed out by the following claims.

[0191] It should be understood that this disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is only limited by the appended claims.

Claims

1. A method for determining the restart control parameters of a compressor, characterized in that, Including: Obtain the current external environmental temperature of the compressor; Obtain the current cumulative number of restart failures and the duration of the fault of the compressor, where the cumulative number of restart failures is the cumulative value in one restart stage; Determine the current restart frequency of the compressor according to the cumulative number of restart failures and the duration of the fault; When the restart frequency is less than or equal to the set restart frequency threshold, determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature and the current restart frequency; Control the compressor to perform the next restart according to the target restart control parameter.

2. The method according to claim 1, characterized in that, The process of obtaining the duration of the fault includes: Obtain the timestamp of the current restart failure of the compressor; Obtain the timestamp of the first restart failure of the compressor; Determine the duration of the fault according to the timestamp of the current restart failure and the timestamp of the first restart failure.

3. The method according to claim 1, wherein The determining of the target restart control parameter for the next restart of the compressor according to the external environmental temperature and the current restart frequency includes: Compare the external environmental temperature with the set temperature threshold to determine the comparison result; Determine the target parameter correction threshold for the next restart of the compressor according to the comparison result; Determine the target restart control parameter according to the target parameter correction threshold, the current restart frequency, and the current restart control parameter during the current restart.

4. The method according to claim 3, characterized in that, The determining of the target parameter correction threshold for the next restart of the compressor according to the comparison result includes: When the external environmental temperature is less than or equal to the temperature threshold, determine the low-load parameter correction threshold of the compressor as the target parameter correction threshold; or When the external environmental temperature is greater than the temperature threshold, determine the high-load parameter correction threshold of the compressor as the target parameter correction threshold.

5. The method according to claim 2 or 3, characterized in that, The determining of the target restart control parameter according to the target parameter correction threshold, the current restart frequency, and the current restart control parameter during the current restart includes: Obtain a parameter increment according to the current restart frequency and the target parameter correction threshold; Determine the target restart control parameter according to the parameter increment and the current restart control parameter.

6. The method according to claim 1, wherein The method further includes: When the restart frequency is greater than the restart frequency threshold, stop executing the restart process and / or send a reminder message of restart failure.

7. The method according to any one of claims 1-4 or 6, characterized in that, The obtaining of the current cumulative number of restart failures and the duration of the fault of the compressor includes: Obtain the restart running duration of the current restart of the compressor; When the restart running duration is greater than the set startup failure determination duration and the compressor is out of step, determine that the current restart of the compressor fails, and update the cumulative number of restart failures and the duration of the fault.

8. A device for determining the restart control parameters of a compressor, characterized in that, Including: A first obtaining module for obtaining the current external environmental temperature of the compressor; A second obtaining module for obtaining the current cumulative number of restart failures and the duration of the fault of the compressor, where the cumulative number of restart failures is the cumulative value in one restart stage; A first determination module, configured to determine the current restart frequency of the compressor according to the cumulative number of restart failures and the duration of the fault; A second determination module, configured to determine the target restart control parameter for the next restart of the compressor according to the external environmental temperature and the current restart frequency when the restart frequency is less than a set restart frequency threshold; A control module, configured to control the compressor to perform the next restart according to the target restart control parameter.

9. An electronic device, characterized in that, Comprising: A processor; A memory for storing executable instructions of the processor; Wherein, the processor is configured to execute the instructions to implement the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the electronic device, the electronic device is enabled to execute the method according to any one of claims 1 to 7.

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