Air conditioner control method and air conditioner

Abstract

The embodiment of the application discloses an air conditioner control method and an air conditioner, and belongs to the field of air conditioners. The air conditioner control method comprises the following steps: obtaining a drop value of an input voltage of the air conditioner when a compressor of the air conditioner is in a frequency stabilization stage; and if the drop value meets a preset voltage drop condition, compensating for a preset frequency reduction protection current value so as to increase the frequency reduction protection current value. The embodiment of the application has the technical effect that the drop value of the input voltage is obtained, so that the frequency reduction protection current value under the condition of meeting the voltage drop condition can be compensated for when the input voltage drops, the frequency reduction protection current value after compensation is increased, the compressor does not reduce the frequency, and the stable operation of the compressor is ensured, thereby ensuring the performance of the air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioning, and more specifically, to an air conditioning control method and an air conditioner. Background Technology

[0002] After the air conditioner is turned on by remote control, it determines the required frequency based on the set temperature and the current ambient temperature, and then increases the frequency according to the required frequency. After reaching the required frequency, it will adjust the frequency according to the current temperature difference. Once the indoor temperature reaches a constant level, the compressor frequency will operate stably at the current frequency.

[0003] During stable compressor operation, if the input voltage of the air conditioner suddenly changes, it will cause the compressor current to increase. Once the current value exceeds the preset frequency reduction protection current value, the compressor will reduce the frequency, resulting in a decrease in the performance of the air conditioner. Summary of the Invention

[0004] This application provides an air conditioning control method and an air conditioner to at least solve the technical problem of air conditioner performance degradation.

[0005] According to a first aspect of the embodiments of this application, an air conditioning control method is provided, the method comprising:

[0006] When the air conditioner compressor is in a stable frequency phase, obtain the voltage drop value of the air conditioner's input voltage.

[0007] If the voltage drop value meets the preset voltage drop condition, the preset frequency reduction protection current value is compensated to increase the frequency reduction protection current value. The compressor frequency reduction is triggered when the actual current value of the air conditioner is less than the frequency reduction protection current value.

[0008] By using this embodiment, the input voltage drop value is obtained, so that when the input voltage drops, the frequency reduction protection current value under the voltage drop condition can be compensated. The compensated frequency reduction protection current value is increased, and the compressor will not reduce the frequency, thus ensuring the stable operation of the compressor and thus ensuring the performance of the air conditioner.

[0009] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the voltage drop condition includes a preset voltage drop threshold.

[0010] The method further includes:

[0011] Determine whether the voltage drop value exceeds the voltage drop threshold;

[0012] If the voltage drop value exceeds the voltage drop threshold, then the voltage drop value is determined to meet the voltage drop condition;

[0013] If the voltage drop value does not exceed the voltage drop threshold, then the voltage drop value is determined to not meet the voltage drop condition.

[0014] This implementation method determines whether the voltage drop value meets the voltage drop condition by setting a voltage drop threshold. The judgment process is simple, the amount of calculation is small, which helps to improve the judgment efficiency and reduce the calculation cost.

[0015] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the voltage drop condition further includes a preset maximum voltage drop threshold;

[0016] After determining that the voltage drop value meets the voltage drop condition, the method further includes:

[0017] Determine whether the voltage drop value does not exceed the maximum voltage drop threshold;

[0018] If the voltage drop value does not exceed the maximum voltage drop threshold, then the compensation for the preset frequency reduction protection current value is performed.

[0019] If the voltage drop exceeds the maximum voltage drop threshold, the compressor will be shut down.

[0020] Using this implementation method, when the voltage drop value exceeds the maximum voltage drop threshold, the compressor is promptly shut down, thus protecting the compressor and electrical components inside the air conditioner by setting the maximum voltage drop threshold.

[0021] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the method further includes:

[0022] Obtain the target input voltage when the air conditioner's compressor is in a frequency stable phase and the air conditioner's input voltage has not dropped;

[0023] The voltage drop threshold and / or the maximum voltage drop threshold are calculated based on the target input voltage, the preset frequency limiting protection current value, and the preset shutdown protection current value.

[0024] Wherein, the frequency limiting protection current value is less than the frequency reduction protection current value, and the frequency reduction protection current value is less than the shutdown protection current value.

[0025] Using this implementation method, the voltage drop threshold and / or the maximum voltage drop threshold are calculated based on the target input voltage of the air conditioner, the preset frequency limiting protection current value, and the preset shutdown protection current value. This allows different air conditioners to have different voltage drop thresholds and / or maximum voltage drop thresholds, which helps improve the control accuracy of the air conditioner and avoids the air conditioner from reducing its frequency or being damaged due to voltage fluctuations.

[0026] In conjunction with the first aspect, in an optional implementation of this application embodiment, the step of calculating the voltage drop threshold and / or the maximum voltage drop threshold based on the target input voltage, a preset frequency limiting protection current value, and a preset shutdown protection current value includes:

[0027] The target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The upper limit of the input voltage is obtained by multiplying the target input voltage with the target ratio. The maximum voltage drop threshold is obtained by subtracting the target input voltage from the upper limit of the input voltage. Alternatively, the target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The target difference is obtained by subtracting the target ratio from 1. The maximum voltage drop threshold is obtained by multiplying the target input voltage with the target difference.

[0028] And / or, a value not exceeding the maximum voltage drop threshold is used as the voltage drop threshold.

[0029] By adopting this implementation method, the voltage drop threshold and / or the maximum voltage drop threshold with high compatibility with the air conditioner can be obtained through simple calculation, which helps to improve the control accuracy of the air conditioner and avoid the air conditioner from reducing frequency or being damaged due to voltage fluctuations.

[0030] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the voltage drop condition includes the input voltage drop duration not exceeding a preset duration threshold.

[0031] Before determining that the voltage drop value meets the voltage drop condition, the method further includes:

[0032] The duration of the input voltage drop is obtained to determine the actual drop duration.

[0033] If the actual drop duration does not exceed the duration threshold, then the step of determining that the drop value meets the voltage drop condition is performed; otherwise, the step of determining that the drop value does not meet the voltage drop condition is performed.

[0034] This implementation calculates the actual voltage drop duration and compares it with a duration threshold. If the actual drop duration does not exceed the duration threshold, the drop value is determined to meet the voltage drop condition, thereby compensating for the frequency reduction protection current value. If the actual drop duration exceeds the duration threshold, it proves that the input voltage is not a short-term fluctuation. In this case, the drop value is determined to not meet the voltage drop condition, which helps the compressor to reduce the frequency in time and protect the air conditioner.

[0035] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the method further includes:

[0036] Obtain the voltage value of the periodically sampled input voltage;

[0037] If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, then the voltage value at the previous acquisition time will be used as the reference voltage value.

[0038] If the voltage value at the current acquisition time is not lower than the reference voltage value, then the time length from the current acquisition time to the previous acquisition time is determined as the actual drop duration.

[0039] Using this implementation method, the actual fall duration calculation process is simple, which helps to reduce the consumption of computing resources and lower computing costs.

[0040] In conjunction with the first aspect, in an optional implementation of this application embodiment, obtaining the sag value of the air conditioner's input voltage includes:

[0041] If the voltage value collected at the current sampling time is less than the voltage value collected at the previous sampling time, then the difference between the voltage value collected at the previous sampling time and the voltage value collected at the current sampling time is calculated to obtain the drop value.

[0042] Alternatively, if the voltage value collected at the current acquisition time is less than the voltage value collected at the previous n acquisition times, the difference between the voltage value collected at the previous n acquisition times and the voltage value collected at the current acquisition time is calculated to obtain the drop value, where the previous n acquisition times refer to the nth acquisition time before the current acquisition time, and n is a positive integer.

[0043] Using this implementation method, the calculation process of the drop value is simple, which helps to improve the accuracy and efficiency of the drop value calculation, and also helps to reduce the occupation of computing resources and reduce computing costs.

[0044] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the method further includes:

[0045] Obtain the input current value of the air conditioner;

[0046] If the input current value remains unchanged within a preset target time period or fluctuates within a preset fluctuation range, then the air conditioner compressor is determined to be in a frequency stable phase.

[0047] Using this embodiment, the accuracy of determining whether the air conditioner is in a frequency stable phase is high by inputting the current value.

[0048] According to a second aspect of the embodiments of this application, an air conditioner is provided, employing the air conditioner control method described above.

[0049] The technical effects achieved by the second aspect are similar to those achieved by the corresponding technical means in the first aspect, and will not be repeated here. Attached Figure Description

[0050] Figure 1 This is a circuit diagram of an air conditioner's input voltage and input current sampling circuit provided in an embodiment of this application;

[0051] Figure 2 This is a flowchart of an air conditioning control method provided in an embodiment of this application;

[0052] Figure 3 This is a flowchart illustrating an air conditioning control method provided in this application in a specific application. Detailed Implementation

[0053] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0054] It should be understood that "multiple" as mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply differentness.

[0055] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0056] After the air conditioner is turned on by remote control, it determines the required frequency based on the set temperature and the current ambient temperature, and then increases the frequency according to the required frequency. After reaching the required frequency, it will adjust the frequency according to the current temperature difference. Once the indoor temperature reaches a constant level, the compressor frequency will operate stably at the current frequency.

[0057] The input voltage of our air conditioner is generally 220V. Since the operating environment of the air conditioner is relatively harsh, in order to ensure the reliability and lifespan of key components on the main board, generally, we will set the AC current protection frequency limit current value, the AC current protection frequency reduction current value, and the AC current protection shutdown current value, namely: I

AC current protection frequency limit current value

AC current protection frequency reduction current value

AC current protection shutdown current value

[0058] When it is detected that I

AC current protection frequency reduction current value

AC current value

AC current protection frequency limit current value

AC current protection frequency reduction current value

AC current value

AC current protection frequency reduction current value

AC current value

AC current protection frequency reduction current value

AC current value

AC current protection shutdown current value

[0059] There is a problem with the above control logic. For example, if our compressor is now operating stably at 70Hz and the detected AC current value is within this range [I

AC current protection frequency limit current value

AC current protection frequency reduction current value

AC current value

AC current value

AC current protection frequency reduction current value

[0060] Based on this, the embodiments of the present application provide an air conditioner control method and an air conditioner, which at least solve the following problems:

[0061] Aiming at the problem of compressor frequency reduction and power reduction caused by grid voltage drop, a control method is proposed that can make the compressor operate stably and ensure comfort.

[0062] At least including the following technical effects:

[0063] When the grid voltage drops, the compressor of the air conditioner can operate stably without reducing frequency or power, ensuring comfort.

[0064] At least including the following features:

[0065] When it is detected that the input voltage of the air conditioner drops, execute the control strategy to compensate the AC current protection frequency reduction current value, so as not to trigger the AC current protection frequency reduction logic and ensure the stable operation of the compressor.

[0066] Such as Figure 1The sampling circuit diagram for the air conditioner input voltage and input current shown includes an EMI filter circuit: used to filter out common-mode interference and differential-mode interference in the power grid;

[0067] Rectifier circuit: Used to rectify the input voltage;

[0068] PFC circuit: used to boost the rectified voltage and correct the input current into a sine wave that is in phase with the input voltage and without distortion.

[0069] Reference Figure 2 The flowchart shown is a schematic diagram of an air conditioning control method, which includes the following processing steps.

[0070] S100. When the air conditioner compressor is in a frequency stable phase, obtain the voltage drop value of the air conditioner's input voltage.

[0071] In one embodiment, it can be determined whether the compressor is in a frequency stable phase by monitoring the frequency change of the compressor. If the compressor frequency does not change or the change is small over a period of time, it can be determined that the compressor is in a frequency stable phase.

[0072] In one embodiment, the input voltage of the air conditioner can be obtained by detecting the input voltage of the outdoor unit or the indoor unit of the air conditioner. When the input voltage decreases, the amount of decrease in the input voltage is the drop value.

[0073] S102. If the voltage drop value meets the preset voltage drop condition, the preset frequency reduction protection current value is compensated to increase the frequency reduction protection current value.

[0074] In one embodiment, the voltage sag condition is intended to constrain whether the frequency reduction protection current value can be compensated to increase it. That is, for certain situations where the frequency reduction protection current value cannot be changed, a voltage sag condition can be set to avoid compensation for the frequency reduction protection current value.

[0075] Specifically, when the actual current value of the air conditioner is less than the frequency reduction protection current value, the compressor is triggered to reduce its frequency.

[0076] In addition, frequency limiting protection current value and shutdown protection current value are preset.

[0077] By using this embodiment, the input voltage drop value is obtained, so that when the input voltage drops, the frequency reduction protection current value under the voltage drop condition can be compensated. The compensated frequency reduction protection current value is increased, and the compressor will not reduce the frequency, thus ensuring the stable operation of the compressor and thus ensuring the performance of the air conditioner.

[0078] In one possible embodiment of this application, the voltage drop condition includes a preset voltage drop threshold;

[0079] The method further includes:

[0080] Determine whether the voltage drop value exceeds the voltage drop threshold;

[0081] If the voltage drop value exceeds the voltage drop threshold, then the voltage drop value is determined to meet the voltage drop condition;

[0082] If the voltage drop value does not exceed the voltage drop threshold, then the voltage drop value is determined to not meet the voltage drop condition.

[0083] In one embodiment, the voltage drop threshold can be set according to actual needs, but this embodiment does not impose specific limitations on it.

[0084] This implementation method determines whether the voltage drop value meets the voltage drop condition by setting a voltage drop threshold. The judgment process is simple, the amount of calculation is small, which helps to improve the judgment efficiency and reduce the calculation cost.

[0085] Optionally, in one implementation of this embodiment, the voltage drop condition further includes a preset maximum voltage drop threshold;

[0086] After determining that the voltage drop value meets the voltage drop condition, the method further includes:

[0087] Determine whether the voltage drop value does not exceed the maximum voltage drop threshold;

[0088] If the voltage drop value does not exceed the maximum voltage drop threshold, then the compensation for the preset frequency reduction protection current value is performed.

[0089] If the voltage drop exceeds the maximum voltage drop threshold, the compressor will be shut down.

[0090] In one embodiment, the maximum voltage drop threshold is greater than the voltage drop threshold.

[0091] Using this implementation method, when the voltage drop value exceeds the maximum voltage drop threshold, the compressor is promptly shut down, thus protecting the compressor and electrical components inside the air conditioner by setting the maximum voltage drop threshold.

[0092] Optionally, in one implementation of this embodiment, the method further includes:

[0093] Obtain the target input voltage when the air conditioner's compressor is in a frequency stable phase and the air conditioner's input voltage has not dropped;

[0094] The voltage drop threshold and / or the maximum voltage drop threshold are calculated based on the target input voltage, the preset frequency limiting protection current value, and the preset shutdown protection current value.

[0095] Wherein, the frequency limiting protection current value is less than the frequency reduction protection current value, and the frequency reduction protection current value is less than the shutdown protection current value.

[0096] Using this implementation method, the voltage drop threshold and / or the maximum voltage drop threshold are calculated based on the target input voltage of the air conditioner, the preset frequency limiting protection current value, and the preset shutdown protection current value. This allows different air conditioners to have different voltage drop thresholds and / or maximum voltage drop thresholds, which helps improve the control accuracy of the air conditioner and avoids the air conditioner from reducing its frequency or being damaged due to voltage fluctuations.

[0097] Optionally, in one implementation of this embodiment, calculating the voltage drop threshold and / or the maximum voltage drop threshold based on the target input voltage, a preset frequency limiting protection current value, and a preset shutdown protection current value includes:

[0098] The target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The upper limit of the input voltage is obtained by multiplying the target input voltage with the target ratio. The maximum voltage drop threshold is obtained by subtracting the target input voltage from the upper limit of the input voltage. Alternatively, the target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The target difference is obtained by subtracting the target ratio from 1. The maximum voltage drop threshold is obtained by multiplying the target input voltage with the target difference.

[0099] And / or, a value not exceeding the maximum voltage drop threshold is used as the voltage drop threshold.

[0100] In one embodiment, there are two ways to calculate the maximum voltage drop threshold, as follows:

[0101] The first method is as follows: upper limit of input voltage = target input voltage * frequency limiting protection current value / shutdown protection current value; maximum voltage drop threshold = target input voltage - upper limit of input voltage.

[0102] The second method is: maximum voltage drop threshold = target input voltage * (1 - frequency limiting protection current value / shutdown protection current value).

[0103] In one embodiment, the voltage drop threshold ranges from [0, maximum voltage drop threshold].

[0104] By adopting this implementation method, the voltage drop threshold and / or the maximum voltage drop threshold with high compatibility with the air conditioner can be obtained through simple calculation, which helps to improve the control accuracy of the air conditioner and avoid the air conditioner from reducing frequency or being damaged due to voltage fluctuations.

[0105] Optionally, in one implementation of this embodiment, the voltage drop condition includes the input voltage drop duration not exceeding a preset duration threshold.

[0106] Before determining that the voltage drop value meets the voltage drop condition, the method further includes:

[0107] The duration of the input voltage drop is obtained to determine the actual drop duration.

[0108] If the actual drop duration does not exceed the duration threshold, then the step of determining that the drop value meets the voltage drop condition is performed; otherwise, the step of determining that the drop value does not meet the voltage drop condition is performed.

[0109] This implementation calculates the actual voltage drop duration and compares it with a duration threshold. If the actual drop duration does not exceed the duration threshold, the drop value is determined to meet the voltage drop condition, thereby compensating for the frequency reduction protection current value. If the actual drop duration exceeds the duration threshold, it proves that the input voltage is not a short-term fluctuation. In this case, the drop value is determined to not meet the voltage drop condition, which helps the compressor to reduce the frequency in time and protect the air conditioner.

[0110] Optionally, in one implementation of this embodiment, the method further includes:

[0111] Obtain the voltage value of the periodically sampled input voltage;

[0112] If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, then the voltage value at the previous acquisition time will be used as the reference voltage value.

[0113] If the voltage value at the current acquisition time is not lower than the reference voltage value, then the time length from the current acquisition time to the previous acquisition time is determined as the actual drop duration.

[0114] Using this implementation method, the actual fall duration calculation process is simple, which helps to reduce the consumption of computing resources and lower computing costs.

[0115] Optionally, in one implementation of this embodiment, obtaining the sag value of the air conditioner's input voltage includes:

[0116] If the voltage value collected at the current sampling time is less than the voltage value collected at the previous sampling time, then the difference between the voltage value collected at the previous sampling time and the voltage value collected at the current sampling time is calculated to obtain the drop value.

[0117] Alternatively, if the voltage value collected at the current acquisition time is less than the voltage value collected at the previous n acquisition times, the difference between the voltage value collected at the previous n acquisition times and the voltage value collected at the current acquisition time is calculated to obtain the drop value, where the previous n acquisition times refer to the nth acquisition time before the current acquisition time, and n is a positive integer.

[0118] Using this implementation method, the calculation process of the drop value is simple, which helps to improve the accuracy and efficiency of the drop value calculation, and also helps to reduce the occupation of computing resources and reduce computing costs.

[0119] Optionally, in one implementation of this embodiment, the method further includes:

[0120] Obtain the input current value of the air conditioner;

[0121] If the input current value remains unchanged within a preset target time period or fluctuates within a preset fluctuation range, then the air conditioner compressor is determined to be in a frequency stable phase.

[0122] Using this embodiment, the accuracy of determining whether the air conditioner is in a frequency stable phase is high by inputting the current value.

[0123] An air conditioner provided in this application embodiment employs the air conditioner control method described above.

[0124] In the above embodiments of this application, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The steps illustrated in the related flowcharts can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown here. In other words, the order of steps described in the foregoing embodiments is merely an example. Reasonable adjustments to the order of steps based on the content of the embodiments of this application are also within the protection scope of the embodiments of this application.

[0125] In one specific implementation of this application embodiment, the air conditioning control method includes the following processing steps:

[0126] After the air conditioner is turned on by remote control, the required frequency is determined based on the set temperature and the current ambient temperature. The compressor then increases the frequency accordingly. Once the required frequency is reached, the frequency is adjusted based on the current temperature difference. After the indoor temperature reaches a constant level, the compressor frequency stabilizes at the current frequency. The air conditioner's main control chip samples the input voltage V and current I of the outdoor unit in real time and calculates the power P of the outdoor unit. For detailed circuit control principles, please refer to [reference needed]. Figure 1 As shown, once the air conditioner is running stably, record the stable operating power of the outdoor unit.

[0127] When the air conditioner is running normally, one minute after PFC is activated, if (the voltage sampled two moments ago – the current voltage sampled) > the V drop threshold or (the voltage sampled at the previous moment – ​​the current voltage sampled) > the V drop threshold, it is determined to be a voltage drop. The control strategy is then executed to compensate for the AC current protection frequency reduction current value. The calculation formula is as follows:

[0128] I AC电流保护降频电流值1 =I AC电流保护降频电流值 +ΔI 补偿 ;

[0129] Because the AC current protection frequency reduction current value has been compensated, the compressor will no longer trigger AC current protection frequency reduction. The compressor can still operate stably at the current frequency, the compressor power will not decrease, and the capacity of the outdoor unit will not be reduced, thus ensuring comfort. See details. Figure 2 .

[0130] Because the compressor stops immediately when the outdoor unit's AC current exceeds the AC current protection shutdown current value, the AC current protection frequency reduction range after compensation is as follows:

[0131] I AC电流保护降频电流值1 ∈[I AC电流保护降频电流值 I AC电流保护停机电流值 ]

[0132] Because of the AC current protection shutdown current limit of the outdoor unit I, the compressor will immediately stop when the AC current exceeds this threshold. Therefore, the upper limit boundary condition V... 跌落max This can be used to determine:

[0133] According to the principle of constant power, V AC *I AC电流保护限频电流值 =V ACmax *I AC电流保护停机电流值 , can be obtained Therefore, the range of the drop threshold is: V 跌落阀值 ∈[0, V 跌落max ].

[0134] This control strategy aims to ensure user comfort while guaranteeing the reliability of critical power devices. When the voltage drop exceeds the drop threshold, this control strategy fails, and the controller protection strategy takes over.

[0135] It should be noted that this control strategy can also be used in the heating mode of the air conditioner, and the current detection unit used to detect AC current can be replaced by a current sensor or a current detection chip.

[0136] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0137] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0138] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0139] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0140] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disc (DVD)), or a semiconductor medium (e.g., solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium; in other words, it can be a non-transient storage medium.

[0141] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the scene data of the current frame in the 3D virtual scene involved in the embodiments of this application, the client's device information, and the scene interaction information are all obtained with full authorization.

[0142] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An air conditioning control method, characterized in that, The method includes: When the air conditioner compressor is in a stable frequency phase, obtain the voltage drop value of the air conditioner's input voltage. If the voltage drop value meets the preset voltage drop condition, the preset frequency reduction protection current value is compensated to increase the frequency reduction protection current value. When the actual current value of the air conditioner is greater than the frequency reduction protection current value, the compressor frequency is reduced. The voltage drop conditions include a preset voltage drop threshold and a maximum voltage drop threshold; the method further includes: Determine whether the voltage drop value exceeds the voltage drop threshold; If the voltage drop value exceeds the voltage drop threshold, then the voltage drop value is determined to meet the voltage drop condition; if the voltage drop value does not exceed the voltage drop threshold, then the voltage drop value is determined to not meet the voltage drop condition. After determining that the voltage drop value meets the voltage drop condition, the method further includes: Determine whether the voltage drop value does not exceed the maximum voltage drop threshold; If the voltage drop value does not exceed the maximum voltage drop threshold, then the preset frequency reduction protection current value is compensated; if the voltage drop value exceeds the maximum voltage drop threshold, then the compressor is controlled to stop.

2. The air conditioning control method according to claim 1, characterized in that, The method further includes: Obtain the target input voltage when the air conditioner's compressor is in a frequency stable phase and the air conditioner's input voltage has not dropped; The voltage drop threshold and / or the maximum voltage drop threshold are calculated based on the target input voltage, the preset frequency limiting protection current value, and the preset shutdown protection current value. Wherein, the frequency limiting protection current value is less than the frequency reduction protection current value, and the frequency reduction protection current value is less than the shutdown protection current value.

3. The air conditioning control method according to claim 2, characterized in that, The step of calculating the voltage drop threshold and / or the maximum voltage drop threshold based on the target input voltage, the preset frequency limiting protection current value, and the preset shutdown protection current value includes: The target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The upper limit of the input voltage is obtained by multiplying the target input voltage with the target ratio. The maximum voltage drop threshold is obtained by subtracting the target input voltage from the upper limit of the input voltage. Alternatively, the target ratio is obtained by comparing the frequency limiting protection current value with the shutdown protection current value. The target difference is obtained by subtracting the target ratio from 1. The maximum voltage drop threshold is obtained by multiplying the target input voltage with the target difference. And / or, a value not exceeding the maximum voltage drop threshold is used as the voltage drop threshold.

4. The air conditioning control method according to any one of claims 1-3, characterized in that, The voltage drop condition includes the input voltage drop duration not exceeding a preset duration threshold. Before determining that the voltage drop value meets the voltage drop condition, the method further includes: The duration of the input voltage drop is obtained to determine the actual drop duration. If the actual drop duration does not exceed the duration threshold, then the step of determining that the drop value meets the voltage drop condition is performed; otherwise, the step of determining that the drop value does not meet the voltage drop condition is performed.

5. The air conditioning control method according to claim 4, characterized in that, The method further includes: Obtain the voltage value of the periodically sampled input voltage; If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, then the voltage value at the previous acquisition time will be used as the reference voltage value. If the voltage value at the current acquisition time is not lower than the reference voltage value, then the time length from the current acquisition time to the previous acquisition time is determined as the actual drop duration.

6. The air conditioning control method according to any one of claims 1-3, characterized in that, The process of obtaining the voltage drop value of the air conditioner's input voltage includes: If the voltage value collected at the current sampling time is less than the voltage value collected at the previous sampling time, then the difference between the voltage value collected at the previous sampling time and the voltage value collected at the current sampling time is calculated to obtain the drop value. Alternatively, if the voltage value collected at the current acquisition time is less than the voltage value collected at the previous n acquisition times, the difference between the voltage value collected at the previous n acquisition times and the voltage value collected at the current acquisition time is calculated to obtain the drop value, where the previous n acquisition times refer to the nth acquisition time before the current acquisition time, and n is a positive integer.

7. The air conditioning control method according to any one of claims 1-3, characterized in that, The method further includes: Obtain the input current value of the air conditioner; If the input current value remains unchanged within a preset target time period or fluctuates within a preset fluctuation range, then the compressor of the air conditioner is determined to be in a frequency stable phase.

8. An air conditioner, characterized in that, It includes a computer-readable storage medium on which a computer program is stored, which, when executed, enables the implementation of the air conditioning control method according to any one of claims 1-7.

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