Air conditioner control method and air conditioner

Abstract

The embodiment of the invention 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 steps that when a compressor of the air conditioner is in a frequency stabilization stage, a drop value of input voltage of the air conditioner is obtained; and if the drop value meets a preset voltage drop condition, compensating a preset frequency reduction protection current value so as to increase the frequency reduction protection current value. According to the embodiment of the invention, by acquiring the drop value of the input voltage, when the input voltage drops, the frequency reduction protection current value meeting the voltage drop condition can be compensated, the compensated frequency reduction protection current value is increased, the frequency reduction of the compressor is avoided, the stable operation of the compressor is ensured, and the service life of the compressor is prolonged. Therefore, the performance of the air conditioner is ensured.

Description

Technical Field

[0001] The present application relates to the field of air conditioning, and in particular, to an air conditioning control method and an air conditioning. Background Art

[0002] After the air conditioner is turned on by the remote control, the required frequency will be determined according to the set temperature and the current outer ring temperature, and then the frequency will be increased according to the required frequency. After reaching the required frequency, the frequency will be raised or lowered according to the current temperature difference. After the indoor temperature reaches a constant, the compressor frequency will also run stably at the current frequency.

[0003] During the stable operation of the compressor, if the input voltage of the air conditioner changes suddenly, the current of the compressor will 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] The embodiments of the present application provide an air conditioning control method and an air conditioning, so as to at least solve the technical problem of performance degradation of the air conditioning.

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

[0006] When the compressor of the air conditioner is in a frequency stabilization stage, obtaining a drop value of the input voltage of the air conditioner;

[0007] If the 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, wherein 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 adopting this embodiment, by obtaining the drop value of the input voltage, when the input voltage drops, the frequency reduction protection current value that meets the voltage drop condition can be compensated. The compensated frequency reduction protection current value increases, and the compressor will not reduce the frequency, thereby ensuring the stable operation of the compressor and thus ensuring the performance of the air conditioner.

[0009] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the voltage drop condition includes a preset voltage drop threshold;

[0010] The method further comprises:

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

[0012] If the drop value exceeds the voltage drop threshold, determining that the drop value meets the voltage drop condition;

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

[0014] By adopting this implementation, whether the drop value meets the voltage drop condition is judged by setting the voltage drop threshold value. The judgment process is simple and the calculation amount is small, which is conducive to improving the judgment efficiency and reducing the calculation cost of the judgment.

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

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

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

[0018] If the drop value does not exceed the voltage drop maximum threshold, the preset frequency reduction protection current value is compensated;

[0019] If the drop value exceeds the voltage drop maximum threshold, the compressor is controlled to stop.

[0020] By adopting this implementation, when the drop value exceeds the maximum voltage drop threshold, the compressor is promptly controlled to shut down, so that the compressor and electrical components in the air conditioner are protected by means of the preset maximum voltage drop threshold.

[0021] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0022] Acquire a target input voltage when the compressor of the air conditioner is in a frequency stabilization stage and the input voltage of the air conditioner does not drop;

[0023] Calculating the voltage drop threshold and / or the voltage drop maximum threshold according to the target input voltage, the preset frequency limiting protection current value and the preset shutdown protection current value;

[0024] Among them, the frequency limiting protection current value is smaller than the frequency reduction protection current value, and the frequency reduction protection current value is smaller than the shutdown protection current value.

[0025] With this implementation, 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, so that different air conditioners have different voltage drop thresholds and / or maximum voltage drop thresholds, which helps to improve the control accuracy of the air conditioner and avoid frequency reduction or damage of the air conditioner due to voltage fluctuations.

[0026] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the calculating the voltage drop threshold and / or the voltage drop maximum threshold according to the target input voltage, the preset frequency limiting protection current value and the preset shutdown protection current value includes:

[0027] Comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, multiplying the target input voltage with the target ratio to obtain an input voltage upper limit, subtracting the target input voltage from the input voltage upper limit to obtain the voltage drop maximum threshold, or comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, subtracting the target ratio from 1 to obtain a target difference, and multiplying the target input voltage with the target difference to obtain the voltage drop maximum threshold;

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

[0029] By adopting this implementation, a voltage drop threshold value and / or a maximum voltage drop threshold value that is highly compatible with the air conditioner can be obtained through simple calculation, which helps to improve the control accuracy of the air conditioner and avoid frequency reduction or damage of the air conditioner due to voltage fluctuations.

[0030] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the voltage drop condition includes that the drop duration of the input voltage does not exceed a preset duration threshold;

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

[0032] Obtaining the duration of the input voltage being in a drop state to obtain an actual drop duration;

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

[0034] By adopting this implementation method, the actual drop duration of the input voltage is calculated and compared with the duration threshold. When the actual drop duration does not exceed the duration threshold, it is determined that the drop value meets the voltage drop condition, thereby compensating 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. At this time, it is determined that the drop value does not meet the voltage drop condition, which helps the compressor to reduce the frequency in time and protect the air conditioner.

[0035] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

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

[0037] If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, the voltage value at the previous acquisition time is used as the reference voltage value;

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

[0039] By adopting this implementation method, the calculation process of the actual drop duration is simple, which helps to reduce the occupation of computing resources and reduce computing costs.

[0040] In combination with the first aspect, in an optional implementation of the embodiment of the present application, obtaining the drop value of the input voltage of the air conditioner includes:

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

[0042] Or if the voltage value collected at the current collection moment is less than the voltage value at the previous n collection moments, the difference between the voltage value at the previous n collection moments and the voltage value collected at the current collection moment is calculated to obtain the drop value, wherein the previous n collection moments refer to the nth collection moment before the current collection moment, and n is a positive integer.

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

[0044] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0045] Obtaining an input current value of the air conditioner;

[0046] If the input current value remains unchanged within the preset target time or the fluctuation range is within the preset fluctuation range, it is determined that the compressor of the air conditioner is in the frequency stabilization stage.

[0047] By adopting this embodiment, whether the air conditioner is in the frequency stabilization stage is judged by the input current value, with high accuracy.

[0048] According to a second aspect of an embodiment of the present application, an air conditioner is provided, which adopts the air conditioner control method described above.

[0049] The technical effect obtained by the above-mentioned second aspect is similar to the technical effect obtained by the corresponding technical means in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is an input voltage and input current sampling circuit diagram of an air conditioner provided in an embodiment of the present application;

[0051] Figure 2 is a flow chart of an air conditioning control method provided by an embodiment of the present application;

[0052] Figure 3 It is a flow chart of a specific application of an air conditioning control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0054] It should be understood that the "plurality" mentioned in this article refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and so on are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and so on do not limit the quantity and execution order, and the words "first", "second" and so on do not limit certain different

[0055] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0056] After the air conditioner is turned on by the remote control, the required frequency will be determined according to the set temperature and the current outer ring temperature, and then the frequency will be increased according to the required frequency. After reaching the required frequency, the frequency will be raised or lowered according to the current temperature difference. After the indoor temperature reaches a constant, the compressor frequency will also run 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 the key components on the main board, generally, we will set the AC current protection frequency-limiting current value, the AC current protection frequency-downscaling current value, and the AC current protection shutdown current value, namely: I

AC current protection frequency-limiting current value

AC current protection frequency-downscaling current value

AC current protection shutdown current value

[0058] When it is detected that I

AC current protection frequency-downscaling current value

AC current value

AC current protection frequency-limiting current value

AC current protection frequency-downscaling current value

AC current value

AC current protection frequency-downscaling current value

AC current value

AC current protection frequency-downscaling 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-limiting current value

AC current protection frequency-downscaling current value

AC current value

AC current value

AC current protection frequency-downscaling 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 that the compressor downscales and reduces power due to the grid voltage drop, a control method that can make the compressor operate stably and ensure comfort is proposed.

[0062] At least including the following technical effects:

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

[0064] At least including the following characteristics:

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

[0066] Such as Figure 1The sampling circuit diagram of 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 undistorted.

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

[0070] S100: When the compressor of the air conditioner is in a frequency stabilization stage, obtain a drop value of an input voltage of the air conditioner.

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

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

[0073] S102: If the voltage drop value meets a 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 drop condition is intended to constrain whether the frequency reduction protection current value can be compensated to increase it. That is, if the frequency reduction protection current value cannot be changed for some situations, it can be set within the voltage drop condition to avoid compensating the frequency reduction protection current value.

[0075] When the actual current value of the air conditioner is less than the frequency reduction protection current value, the compressor frequency reduction is triggered.

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

[0077] By adopting this embodiment, by obtaining the drop value of the input voltage, when the input voltage drops, the frequency reduction protection current value that meets the voltage drop condition can be compensated. The compensated frequency reduction protection current value increases, and the compressor will not reduce the frequency, thereby ensuring the stable operation of the compressor and thus ensuring the performance of the air conditioner.

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

[0079] The method further comprises:

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

[0081] If the drop value exceeds the voltage drop threshold, determining that the drop value meets the voltage drop condition;

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

[0083] In one embodiment, the voltage drop threshold may be set according to actual needs, and this embodiment does not specifically limit this.

[0084] By adopting this implementation, whether the drop value meets the voltage drop condition is judged by setting the voltage drop threshold value. The judgment process is simple and the calculation amount is small, which is conducive to improving the judgment efficiency and reducing the calculation cost of the judgment.

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

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

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

[0088] If the drop value does not exceed the voltage drop maximum threshold, the preset frequency reduction protection current value is compensated;

[0089] If the drop value exceeds the voltage drop maximum threshold, the compressor is controlled to stop.

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

[0091] By adopting this implementation, when the drop value exceeds the maximum voltage drop threshold, the compressor is promptly controlled to shut down, so that the compressor and electrical components in the air conditioner are protected by means of the preset maximum voltage drop threshold.

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

[0093] Acquire a target input voltage when the compressor of the air conditioner is in a frequency stabilization stage and the input voltage of the air conditioner does not drop;

[0094] Calculating the voltage drop threshold and / or the voltage drop maximum threshold according to the target input voltage, the preset frequency limiting protection current value and the preset shutdown protection current value;

[0095] Among them, the frequency limiting protection current value is smaller than the frequency reduction protection current value, and the frequency reduction protection current value is smaller than the shutdown protection current value.

[0096] With this implementation, 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, so that different air conditioners have different voltage drop thresholds and / or maximum voltage drop thresholds, which helps to improve the control accuracy of the air conditioner and avoid frequency reduction or damage of the air conditioner due to voltage fluctuations.

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

[0098] Comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, multiplying the target input voltage with the target ratio to obtain an input voltage upper limit, subtracting the target input voltage from the input voltage upper limit to obtain the voltage drop maximum threshold, or comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, subtracting the target ratio from 1 to obtain a target difference, and multiplying the target input voltage with the target difference to obtain the voltage drop maximum threshold;

[0099] And / or, a value that does not exceed the voltage drop maximum 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 type is that the input voltage upper limit value = target input voltage * frequency limiting protection current value / shutdown protection current value, and the voltage drop maximum threshold value = target input voltage - input voltage upper limit value;

[0102] The second type is that the 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 value ranges from [0 to the maximum voltage drop threshold value].

[0104] By adopting this implementation, a voltage drop threshold value and / or a maximum voltage drop threshold value that is highly compatible with the air conditioner can be obtained through simple calculation, which helps to improve the control accuracy of the air conditioner and avoid frequency reduction or damage of the air conditioner due to voltage fluctuations.

[0105] Optionally, in an implementation of this embodiment, the voltage drop condition includes that the drop duration of the input voltage does not exceed a preset duration threshold;

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

[0107] Obtaining the duration of the input voltage being in a drop state to obtain an actual drop duration;

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

[0109] By adopting this implementation method, the actual drop duration of the input voltage is calculated and compared with the duration threshold. When the actual drop duration does not exceed the duration threshold, it is determined that the drop value meets the voltage drop condition, thereby compensating 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. At this time, it is determined that the drop value does not meet the voltage drop condition, which helps the compressor to reduce the frequency in time and protect the air conditioner.

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

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

[0112] If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, the voltage value at the previous acquisition time is used as the reference voltage value;

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

[0114] By adopting this implementation method, the calculation process of the actual drop duration is simple, which helps to reduce the occupation of computing resources and reduce computing costs.

[0115] Optionally, in an implementation of this embodiment, obtaining the drop value of the input voltage of the air conditioner includes:

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

[0117] Or if the voltage value collected at the current collection moment is less than the voltage value at the previous n collection moments, the difference between the voltage value at the previous n collection moments and the voltage value collected at the current collection moment is calculated to obtain the drop value, wherein the previous n collection moments refer to the nth collection moment before the current collection moment, and n is a positive integer.

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

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

[0120] Obtaining an input current value of the air conditioner;

[0121] If the input current value remains unchanged within the preset target time or the fluctuation range is within the preset fluctuation range, it is determined that the compressor of the air conditioner is in the frequency stabilization stage.

[0122] By adopting this embodiment, whether the air conditioner is in the frequency stabilization stage is judged by the input current value, with high accuracy.

[0123] An air conditioner provided in an embodiment of the present application adopts the air conditioner control method described above.

[0124] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

[0125] In a specific implementation of the embodiment of the present application, 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 according to the set temperature and the current outer ring temperature, and then the frequency is increased according to the required frequency. After reaching the required frequency, the frequency is increased or decreased according to the current temperature difference. When the indoor temperature reaches a constant level, the compressor frequency will also run stably at the current frequency. The main control chip of the air conditioner samples the input voltage V and the current I of the air conditioner outdoor unit in real time, and calculates the power P of the air conditioner outdoor unit in real time. For the specific circuit control principle, please refer to Figure 1 As shown, when the air conditioner is running stably, the stable operating power of the air conditioner outdoor unit is recorded.

[0127] The air conditioner is turned on and running normally. One minute after PFC is turned on, when (the sampling voltage at the last moment - the current sampling voltage)>V drop threshold or (the sampling voltage at the last moment - the current sampling voltage)>V drop threshold, it is judged as voltage drop, and the control strategy is executed to compensate 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 the AC current protection frequency reduction. The compressor can still run stably at the current frequency, the compressor power will not be reduced, and the air conditioner outdoor unit capacity will not be attenuated, thus ensuring comfort. For details, see Figure 2 .

[0130] When the AC current value of the external unit exceeds the AC current protection shutdown current value, the compressor will shut down immediately. Therefore, the AC current protection frequency reduction range after compensating the current value is:

[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] Due to the limit of the external unit I [AC current protection shutdown current value], when the AC current exceeds this judgment value, the compressor will stop immediately, so the upper boundary condition V 跌落max This can be used to determine:

[0133] According to the constant power principle, 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 So the range of drop threshold is: V 跌落阀值 ∈[0,V 跌落max ].

[0134] This control strategy aims to ensure user comfort while ensuring the reliability of key power devices. When the drop voltage exceeds the drop threshold, this control strategy fails and the controller protection strategy is used as the main strategy.

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

[0136] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does 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. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

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

[0139] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0140] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of 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, the process or function described in the embodiment of the present application is generated in whole or in part. 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 computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiment of the present application may be a non-volatile storage medium, in other words, 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 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 relevant 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 three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the embodiments of this application are all obtained with full authorization.

[0142] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An air conditioning control method, characterized in that: The method comprises: When the compressor of the air conditioner is in a frequency stabilization stage, obtaining a drop value of the input voltage of the air conditioner; If the 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, wherein the compressor frequency reduction is triggered when the actual current value of the air conditioner is less than the frequency reduction protection current value.

2. The air conditioning control method according to claim 1, characterized in that: The voltage drop condition includes a preset voltage drop threshold; The method further comprises: Determining whether the drop value exceeds the voltage drop threshold; If the drop value exceeds the voltage drop threshold, determining that the drop value meets the voltage drop condition; If the drop value does not exceed the voltage drop threshold, it is determined that the drop value does not meet the voltage drop condition.

3. The air conditioning control method according to claim 2, characterized in that: The voltage drop condition also includes a preset voltage drop maximum threshold; After determining that the drop value meets the voltage drop condition, the method further includes: Determine whether the drop value does not exceed the voltage drop maximum threshold; If the drop value does not exceed the voltage drop maximum threshold, the preset frequency reduction protection current value is compensated; If the drop value exceeds the voltage drop maximum threshold, the compressor is controlled to stop.

4. The air conditioning control method according to claim 3, characterized in that: The method further comprises: Acquire a target input voltage when the compressor of the air conditioner is in a frequency stabilization stage and the input voltage of the air conditioner does not drop; Calculating the voltage drop threshold and / or the voltage drop maximum threshold according to the target input voltage, the preset frequency limiting protection current value and the preset shutdown protection current value; Among them, the frequency limiting protection current value is smaller than the frequency reduction protection current value, and the frequency reduction protection current value is smaller than the shutdown protection current value.

5. The air conditioning control method according to claim 4, characterized in that: The calculating the voltage drop threshold value and / or the voltage drop maximum threshold value according to the target input voltage, the preset frequency limiting protection current value and the preset shutdown protection current value includes: Comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, multiplying the target input voltage with the target ratio to obtain an input voltage upper limit, subtracting the target input voltage from the input voltage upper limit to obtain the voltage drop maximum threshold, or comparing the frequency limiting protection current value with the shutdown protection current value to obtain a target ratio, subtracting the target ratio from 1 to obtain a target difference, and multiplying the target input voltage with the target difference to obtain the voltage drop maximum threshold; And / or, a value that does not exceed the voltage drop maximum threshold is used as the voltage drop threshold.

6. The air conditioning control method according to any one of claims 2 to 5, characterized in that: The voltage drop condition includes that the drop duration of the input voltage does not exceed a preset duration threshold; Before determining that the drop value meets the voltage drop condition, the method further includes: Obtaining the duration of the input voltage being in a drop state to obtain an actual drop duration; If the actual drop duration does not exceed the duration threshold, determining that the drop value meets the voltage drop condition is performed; otherwise, determining that the drop value does not meet the voltage drop condition.

7. The air conditioning control method according to claim 6, characterized in that: The method further comprises: Obtain the voltage value of the periodically collected input voltage; If the voltage value at the target acquisition time is lower than the voltage value at the previous acquisition time, the voltage value at the previous acquisition time is used as the reference voltage value; If the voltage value at the current acquisition time is not lower than the reference voltage value, the time length from the current acquisition time to the previous acquisition time is determined as the actual drop duration.

8. The air conditioning control method according to any one of claims 1 to 5, characterized in that: The step of obtaining the drop value of the input voltage of the air conditioner includes: If the voltage value collected at the current collection time is less than the voltage value at the previous collection time, the difference between the voltage value at the previous collection time and the voltage value collected at the current collection time is calculated to obtain the drop value. Or if the voltage value collected at the current collection moment is less than the voltage value at the previous n collection moments, the difference between the voltage value at the previous n collection moments and the voltage value collected at the current collection moment is calculated to obtain the drop value, wherein the previous n collection moments refer to the nth collection moment before the current collection moment, and n is a positive integer.

9. The air conditioning control method according to any one of claims 1 to 5, characterized in that: The method further comprises: Obtaining an input current value of the air conditioner; If the input current value remains unchanged within a preset target time period or the fluctuation range is within a preset fluctuation interval, it is determined that the compressor of the air conditioner is in a frequency stabilization stage.

10. An air conditioner, characterized in that: The air conditioning control method according to any one of claims 1 to 9 is adopted.

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