WO2023011355A1 - Compressor control method and system, and air conditioner - Google Patents
Compressor control method and system, and air conditioner Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention relates to the technical field of air conditioner control, and particularly provides a compressor control method and system, and an air conditioner, to solve the problem that a compressor parameter offset may lead to a compressor control failure. Accordingly, the compressor control method of the present invention comprises: according to a result of comparison between a variable frequency control parameter of a compressor in actual operation and a preset initial value of the variable frequency control parameter, obtaining an offset of the variable frequency control parameter; determining, according to the offset, whether to pre-correct the variable frequency control parameter; and further determining, according to compressor monitoring parameters before and after the pre-correction, whether to perform final correction on the variable frequency control parameter. The offset of the variable frequency control parameter and the compressor control failure caused by degradation of material characteristics due to long-term operation of the compressor can be avoided.
Description
本发明涉及空调控制技术领域，具体提供一种压缩机的控制方法、系统及空调器。The invention relates to the technical field of air conditioning control, and specifically provides a compressor control method, system and air conditioner.
随着变频空调越来越普及，空调技术也越来越成熟。在空调使用过程中，压缩机起到了非常重要的作用。但是，随着时间的推移，压缩机中的一些材料的特性会有所下降，导致对压缩机进行变频控制的一些控制参数发生偏移；另外，现有的管理压缩机控制参数的方法一般都是将这些控制参数预先输入至寄存器中，当在压缩机进行变频控制时可以直接从寄存器中调用这些控制参数进行变频控制，如果这些控制参数发生偏移，就有可能导致压缩机控制失败。As inverter air conditioners become more and more popular, air conditioning technology is becoming more and more mature. The compressor plays a very important role in the use of air conditioners. However, over time, the characteristics of some materials in the compressor will degrade, causing some control parameters for variable frequency control of the compressor to shift; in addition, existing methods for managing compressor control parameters are generally not It is to input these control parameters into the register in advance. When the compressor is in frequency conversion control, these control parameters can be directly called from the register for frequency conversion control. If these control parameters deviate, it may cause compressor control failure.
相应地，本领域需要一种新的压缩机的控制方案来解决上述问题。Correspondingly, a new compressor control scheme is needed in the art to solve the above problems.
发明内容Contents of the invention
本发明旨在解决上述技术问题，即，解决现有压缩机参数发生偏移，有可能导致压缩机控制失败的问题。The present invention aims to solve the above-mentioned technical problem, that is, to solve the problem that the parameter deviation of the existing compressor may lead to the failure of compressor control.
在第一方面，本发明提供一种压缩机的控制方法，所述控制方法包括：In a first aspect, the present invention provides a compressor control method, the control method comprising:
根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取所述变频控制参数的偏移量；Acquiring the offset of the frequency conversion control parameter according to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter;
当所述偏移量大于偏移量阈值时，对所述变频控制参数进行预修正；When the offset is greater than an offset threshold, pre-correct the variable frequency control parameters;
根据进行所述预修正前预设的压缩机监控参数的实际值和进行所述预修正后所述压缩机监控参数的实际值的比较结果，选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正。According to the comparison result between the actual value of the compressor monitoring parameter preset before the pre-correction and the actual value of the compressor monitoring parameter after the pre-correction, selectively pre-correcting the frequency conversion control parameter The parameter correction value adopted at the time is used for final correction of the frequency conversion control parameters.
在上述压缩机的控制方法的一个技术方案中，所述监控参数包括压缩机的运行效率和影响所述运行效率的压缩机参数，其中，所述影响所述 运行效率的压缩机参数至少包括压缩机的相电流；In a technical solution of the control method of the above-mentioned compressor, the monitoring parameters include the operating efficiency of the compressor and compressor parameters affecting the operating efficiency, wherein the compressor parameters affecting the operating efficiency include at least compression The phase current of the machine;
“选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正”的步骤具体包括：The step of "selectively performing final correction on the variable frequency control parameter according to the parameter correction value used when pre-correcting the variable frequency control parameter" specifically includes:
当所述监控参数是所述压缩机的运行效率时，若进行所述预修正前预设的所述运行效率的实际值小于进行所述预修正后所述运行效率的实际值，则进行所述最终修正；否则不进行所述最终修正；When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the operating efficiency preset before performing the pre-correction is smaller than the actual value of the operating efficiency after performing the pre-correction, then perform the said final amendment; otherwise said final amendment shall not be made;
当所述监控参数是影响所述运行效率的压缩机参数时，若所述压缩机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行所述最终修正；否则不进行所述最终修正。When the monitoring parameter is a compressor parameter that affects the operating efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operating efficiency of the compressor, then perform the final correction; otherwise, do not perform Said Final Amendment.
在上述压缩机的控制方法的一个技术方案中，所述变频控制参数至少包括压缩机的反电动势常数和电感量，所述预设的变频控制参数的初始值为上一次对所述变频控制参数进行最终修正时采用的参数修正值；“获取所述变频控制参数的偏移量”的步骤具体包括：In a technical solution of the control method of the above-mentioned compressor, the variable frequency control parameters include at least the counter electromotive force constant and the inductance of the compressor, and the initial value of the preset variable frequency control parameters is The parameter correction value used in the final correction; the step of "obtaining the offset of the frequency conversion control parameter" specifically includes:
根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用下式所示的方法获取变频控制参数的偏移量：According to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter, and adopt the method shown in the following formula to obtain the offset of the frequency conversion control parameter:
其中，a为所述变频控制参数的偏移量，F
0为所述预设的变频控制参数的初始值，F为所述压缩机实际运行中的变频控制参数。
Wherein, a is the offset of the frequency conversion control parameter, F0 is the initial value of the preset frequency conversion control parameter, and F is the frequency conversion control parameter in the actual operation of the compressor.
在上述压缩机的控制方法的一个技术方案中，所述方法还包括通过下式所示的方法获取所述压缩机实际运行中的反电动势常数：In a technical solution of the above compressor control method, the method further includes obtaining the counter electromotive force constant of the compressor in actual operation by the method shown in the following formula:
其中，Ke为所述实际运行中的反电动势常数，V
反为所述压缩机实际运行中的反电动势，r为所述压缩机实际运行中的转速。
Wherein, Ke is the counter electromotive force constant in the actual operation, V counter is the counter electromotive force in the actual operation of the compressor, and r is the rotational speed of the compressor in the actual operation.
在第二方面，本发明提供一种压缩机的控制系统，所述控制系统包括：In a second aspect, the present invention provides a compressor control system, the control system comprising:
参数偏移量获取模块，其被配置为根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取所述变频控制参数的偏移量；A parameter offset acquisition module configured to acquire the offset of the variable frequency control parameter according to the variable frequency control parameter in the actual operation of the compressor and the preset initial value of the variable frequency control parameter;
参数预修正模块，其被配置为当所述偏移量大于偏移量阈值时，对所述变频控制参数进行预修正；A parameter pre-correction module configured to pre-correct the variable frequency control parameters when the offset is greater than an offset threshold;
参数最终修正模块，其被配置为根据进行所述预修正前预设的压缩 机监控参数的实际值和进行所述预修正后所述压缩机监控参数的实际值的比较结果，选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正。The parameter final correction module, which is configured to selectively according to The parameter correction value used in the pre-correction of the frequency conversion control parameter is used to perform final correction on the frequency conversion control parameter.
在上述压缩机的控制系统的一个技术方案中，所述监控参数包括压缩机的运行效率和影响所述运行效率的压缩机参数，其中，所述影响所述运行效率的压缩机参数至少包括压缩机的相电流；In a technical solution of the control system of the above-mentioned compressor, the monitoring parameters include the operating efficiency of the compressor and compressor parameters affecting the operating efficiency, wherein the compressor parameters affecting the operating efficiency include at least compression The phase current of the machine;
所述参数最终修正模块被进一步配置为根据以下步骤进行所述变频控制参数的最终修正：The parameter final correction module is further configured to perform the final correction of the frequency conversion control parameters according to the following steps:
当所述监控参数是所述压缩机的运行效率时，若进行所述预修正前预设的所述运行效率的实际值小于进行所述预修正后所述运行效率的实际值，则进行所述最终修正；否则不进行所述最终修正；When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the operating efficiency preset before performing the pre-correction is smaller than the actual value of the operating efficiency after performing the pre-correction, then perform the said final amendment; otherwise said final amendment shall not be made;
当所述监控参数是影响所述运行效率的压缩机参数时，若所述压缩机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行所述最终修正；否则不进行所述最终修正。When the monitoring parameter is a compressor parameter that affects the operating efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operating efficiency of the compressor, then perform the final correction; otherwise, do not perform Said Final Amendment.
在上述压缩机的控制系统的一个技术方案中，所述变频控制参数至少包括压缩机的反电动势常数和电感量，所述预设的变频控制参数的初始值为上一次对所述变频控制参数进行最终修正时采用的参数修正值；所述参数偏移量获取模块被配置为根据以下步骤获取所述变频参数的偏移量：In a technical solution of the control system of the above-mentioned compressor, the variable frequency control parameters include at least the counter electromotive force constant and the inductance of the compressor, and the initial value of the preset variable frequency control parameters is The parameter correction value used when performing the final correction; the parameter offset acquisition module is configured to acquire the offset of the frequency conversion parameter according to the following steps:
根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用下式所示的方法获取变频控制参数的偏移量：According to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter, and adopt the method shown in the following formula to obtain the offset of the frequency conversion control parameter:
其中，a为所述变频控制参数的偏移量，F
0为所述预设的变频控制参数的初始值，F为所述压缩机实际运行中的变频控制参数。
Wherein, a is the offset of the frequency conversion control parameter, F0 is the initial value of the preset frequency conversion control parameter, and F is the frequency conversion control parameter in the actual operation of the compressor.
在上述压缩机的控制系统的一个技术方案中，所述系统还包括反电动常数计算模块，所述反电动势常数计算模块被配置为通过下式所示的方法获取所述压缩机实际运行中的反电动势常数：In a technical solution of the control system of the above-mentioned compressor, the system further includes a counter electromotive constant calculation module, and the counter electromotive constant calculation module is configured to obtain the actual operation of the compressor through the method shown in the following formula Back EMF constant:
其中，Ke为所述实际运行中的反电动势常数，V
反为所述压缩机实际运行中的反电动势，r为所述压缩机实际运行中的转速。
Wherein, Ke is the counter electromotive force constant in the actual operation, V counter is the counter electromotive force in the actual operation of the compressor, and r is the rotational speed of the compressor in the actual operation.
在第三方面，提供一种压缩机的控制系统，包括处理器和存储装置，所述存储装置适于存储多条程序代码，所述程序代码适于由所述处理器加载并运行以执行上述压缩机的控制方法技术方案中任一项所述的压缩机的控制方法。In a third aspect, a compressor control system is provided, including a processor and a storage device, the storage device is adapted to store a plurality of program codes, and the program codes are adapted to be loaded and run by the processor to execute the above-mentioned Compressor control method The compressor control method described in any one of the technical solutions.
在第四方面，提供一种空调器，所述空调器包括空调本体以及上述压缩机的控制系统技术方案中任一项所述的压缩机的控制系统。In a fourth aspect, an air conditioner is provided, the air conditioner includes an air conditioner body and the compressor control system described in any one of the above-mentioned compressor control system technical solutions.
在采用上述技术方案的情况下，本发明能够根据压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取变频控制参数的偏移量，当变频控制参数的偏移量大于偏移量阈值时，对变频控制参数进行预修正，并根据进行预修正前的压缩机监控参数的实际值和进行预修正后的压缩机监控参数的实际值的比较结果，选择性地根据变频控制参数进行预修正时采用的参数修正值对变频控制参数进行最终修正。通过上述设置方法，能够有效监控压缩机的变频控制参数的偏移量，当变频控制参数的偏移量大于偏移量阈值时，即对变频控制参数进行预修正，并根据进行预修正前的和预修正后的压缩机监控参数的实际值的比较结果，进一步判断是否对变频控制参数进行最终修正，避免了变频控制参数偏移较大导致压缩机控制失败的问题，能够实现压缩机的有效变频控制，提升压缩机的运行效率。In the case of adopting the above technical solution, the present invention can obtain the offset of the variable frequency control parameter according to the variable frequency control parameter in the actual operation of the compressor and the preset initial value of the variable frequency control parameter, when the offset of the variable frequency control parameter When it is greater than the offset threshold, the frequency conversion control parameters are pre-corrected, and according to the comparison result between the actual value of the compressor monitoring parameter before pre-correction and the actual value of the compressor monitoring parameter after pre-correction, selectively according to The parameter correction value used in the pre-correction of the frequency conversion control parameters is used for the final correction of the frequency conversion control parameters. Through the above setting method, the offset of the frequency conversion control parameters of the compressor can be effectively monitored. When the deviation of the frequency conversion control parameters is greater than the offset threshold, the frequency conversion control parameters will be pre-corrected, and the Compared with the actual value of the pre-corrected compressor monitoring parameters, it is further judged whether to make final corrections to the frequency conversion control parameters, which avoids the problem of compressor control failure caused by large frequency conversion control parameter deviations, and can realize effective compressor control. Frequency conversion control to improve the operating efficiency of the compressor.
参照附图，本发明的公开内容将变得更易理解。本领域技术人员容易理解的是：这些附图仅仅用于说明的目的，而并非意在对本发明的保护范围组成限制。其中：The disclosure of the present invention will become more comprehensible with reference to the accompanying drawings. Those skilled in the art can easily understand that: these drawings are only for the purpose of illustration, and are not intended to limit the protection scope of the present invention. in:
图1是根据本发明的一个实施例的压缩机的控制方法的主要步骤流程示意图；Fig. 1 is a schematic flowchart of main steps of a control method of a compressor according to an embodiment of the present invention;
图2是根据本发明的一个实施例的压缩机的控制系统的主要结构框图。Fig. 2 is a main structural block diagram of a control system of a compressor according to an embodiment of the present invention.
下面参照附图来描述本发明的一些实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
在本发明的描述中，“模块”、“处理器”可以包括硬件、软件或者两者的组合。一个模块可以包括硬件电路，各种合适的感应器，通信端口，存储器，也可以包括软件部分，比如程序代码，也可以是软件和硬件的组合。处理器可以是中央处理器、微处理器、数字信号处理器或者其他任何合适的处理器。处理器具有数据和/或信号处理功能。处理器可以以软件方式实现、硬件方式实现或者二者结合方式实现。非暂时性的计算机可读存储介质包括任何合适的可存储程序代码的介质，比如磁碟、硬盘、光碟、闪存、只读存储器、随机存取存储器等等。术语“A和/或B”表示所有可能的A与B的组合，比如只是A、只是B或者A和B。术语“至少一个A或B”或者“A和B中的至少一个”含义与“A和/或B”类似，可以包括只是A、只是B或者A和B。单数形式的术语“一个”、“这个”也可以包含复数形式。In the description of the present invention, "module" and "processor" may include hardware, software or a combination of both. A module may include hardware circuits, various suitable sensors, communication ports, memory, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, a digital signal processor or any other suitable processor. The processor has data and/or signal processing functions. The processor can be implemented in software, hardware or a combination of both. The non-transitory computer readable storage medium includes any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read only memory, random access memory, and the like. The term "A and/or B" means all possible combinations of A and B, such as only A, only B or A and B. The term "at least one of A or B" or "at least one of A and B" has a similar meaning to "A and/or B" and may include only A, only B or both A and B. The terms "a" and "the" in the singular may also include plural forms.
目前传统的压缩机的控制方法是将一些关键的控制参数预存在寄存器中，在压缩机运行过程中，直接从寄存器中读取控制参数，进行压缩机的控制。但是在压缩机实际运行过程中，随着时间的推移，压缩机的材料特性会有所下降，以压缩机的绕组线圈为例，随着压缩机使用时长的增加，线圈的材料特性会下降，导致与线圈有关的实际控制参数与预设在寄存器中的控制参数会产生差异，随着控制参数差异的变大，很可能导致压缩机控制失败的情况发生。其中，材料特性是指物体本身的固有的性质，包括特征性能，以电感线圈为例，其材料特性包括电感线圈的电感量的大小。The current traditional compressor control method is to pre-store some key control parameters in registers, and directly read the control parameters from the registers during the operation of the compressor to control the compressor. However, during the actual operation of the compressor, the material properties of the compressor will decrease as time goes by. Taking the winding coil of the compressor as an example, as the compressor is used longer, the material properties of the coil will decrease. As a result, there will be a difference between the actual control parameter related to the coil and the control parameter preset in the register, and as the difference of the control parameter becomes larger, it is likely to cause the compressor to fail to control. Wherein, the material properties refer to the inherent properties of the object itself, including characteristic properties. Taking the inductor coil as an example, the material properties include the inductance of the inductor coil.
相应地，本发明提供一种压缩机的控制方法、系统及空调器来解决上述问题。Correspondingly, the present invention provides a compressor control method, system and air conditioner to solve the above problems.
参阅附图1，图1是根据本发明的一个实施例的压缩机的控制方法的主要步骤流程示意图。如图1所示，本发明实施例中的压缩机的控制方法主要包括下列步骤S101-步骤S103。Referring to accompanying drawing 1, Fig. 1 is a schematic flowchart of main steps of a control method of a compressor according to an embodiment of the present invention. As shown in FIG. 1 , the compressor control method in the embodiment of the present invention mainly includes the following steps S101-S103.
步骤S101：根据压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取变频控制参数的偏移量。Step S101: According to the frequency conversion control parameter in actual operation of the compressor and the preset initial value of the frequency conversion control parameter, the offset of the frequency conversion control parameter is obtained.
变频控制参数指的是可以对压缩机进行变频控制的参数，具体为可以影响压缩机运行过程中运行频率的参数。The frequency conversion control parameter refers to a parameter that can perform frequency conversion control on the compressor, specifically a parameter that can affect the operating frequency of the compressor during operation.
在本实施例中，可以获取压缩机实际运行中的变频控制参数，并将实际运行中的变频控制参数与预设的变频控制参数的初始值进行比较，获 得压缩机的变频控制参数的偏移量。In this embodiment, the frequency conversion control parameters in the actual operation of the compressor can be obtained, and the frequency conversion control parameters in the actual operation are compared with the preset initial values of the frequency conversion control parameters to obtain the offset of the frequency conversion control parameters of the compressor quantity.
步骤S102：当偏移量大于偏移量阈值时，对变频控制参数进行预修正。Step S102: When the offset is greater than the offset threshold, perform pre-correction on the frequency conversion control parameters.
在本实施例中，可以将压缩机的变频控制参数的偏移量与预设的偏移量阈值进行比较，当变频控制参数的偏移量大于偏移量阈值时，则可以对压缩机的变频控制参数进行预修正。本领域技术人员可以根据实际应用过程中的需要确定偏移量阈值。In this embodiment, the offset of the variable frequency control parameter of the compressor can be compared with a preset offset threshold, and when the offset of the variable frequency control parameter is greater than the offset threshold, the Frequency conversion control parameters are pre-corrected. Those skilled in the art can determine the offset threshold according to the needs in the actual application process.
在一个实施方式中，偏移量阈值为10％，即为，当偏移量大于10％时，则可以对变频控制参数进行预修正；当偏移量小于等于10％时，则不对变频控制参数进行预修正。In one embodiment, the offset threshold is 10%, that is, when the offset is greater than 10%, the frequency conversion control parameters can be pre-corrected; when the offset is less than or equal to 10%, the frequency conversion control Parameters are pre-corrected.
其中，预修正是指，将预设的变频控制参数的初始值设置为通过计算或测量获得的压缩机实际运行中的变频控制参数，控制压缩机运行一段时间。Wherein, the pre-correction refers to setting the initial value of the preset frequency conversion control parameter as the frequency conversion control parameter in actual operation of the compressor obtained through calculation or measurement, and controlling the compressor to run for a period of time.
步骤S103：根据进行预修正前预设的压缩机监控参数的实际值和进行预修正后压缩机监控参数的实际值的比较结果，选择性地根据对变频控制参数进行预修正时采用的参数修正值对变频控制参数进行最终修正。Step S103: According to the comparison result of the actual value of the compressor monitoring parameter preset before the pre-correction and the actual value of the compressor monitoring parameter after the pre-correction, selectively correct according to the parameter used when the frequency conversion control parameter is pre-corrected value to make final corrections to the variable frequency control parameters.
在本实施例中，可以获取进行预修正前预设的压缩机监控参数的实际值和进行预修正后压缩机监控参数的实际值，并将上述两个值进行比较，根据比较的结果，判断是否对变频控制参数进行最终修正。如果需要对变频控制参数进行最终修正，则可以根据变频控制参数进行预修正时采用的参数修正值对变频控制参数进行最终修正，即将进行预修正时采用的参数修正值作为预设的变频控制参数的初始值。In this embodiment, the actual value of the compressor monitoring parameter preset before the pre-correction and the actual value of the compressor monitoring parameter after the pre-correction can be obtained, and the above two values are compared, and according to the comparison result, it is judged Whether to make final correction to the frequency conversion control parameters. If the final correction of the variable frequency control parameters is required, the final correction of the variable frequency control parameters can be carried out according to the parameter correction value used in the pre-correction of the variable frequency control parameters, and the parameter correction value used in the pre-correction will be used as the preset variable frequency control parameter the initial value of .
其中，最终修正是指，将预设的变频控制参数的初始值设置为压缩机进行预修正时采用的参数修正值。Wherein, the final correction refers to setting the initial value of the preset frequency conversion control parameter as the parameter correction value adopted when the compressor performs pre-correction.
基于上述步骤S101-步骤S103，本发明能够根据压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取变频控制参数的偏移量，当变频控制参数的偏移量大于偏移量阈值时，对变频控制参数进行预修正，并根据进行预修正前的压缩机监控参数的实际值和进行预修正后的压缩机监控参数的实际值的比较结果，选择性地根据变频控制参数进行预修正时采用的参数修正值对变频控制参数进行最终修正。通过上述设置方法，能够有效监控压缩机的变频控制参数的偏移量，当变频控 制参数的偏移量大于偏移量阈值时，即对变频控制参数进行预修正，并根据进行预修正前的和预修正后的压缩机监控参数的实际值的比较结果，进一步判断是否对变频控制参数进行最终修正，避免了变频控制参数偏移较大导致压缩机控制失败的问题，能够实现压缩机的有效变频控制，提升压缩机的运行效率。Based on the above step S101-step S103, the present invention can obtain the offset of the frequency conversion control parameter according to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter, when the offset of the frequency conversion control parameter is greater than When the offset threshold is reached, the frequency conversion control parameters are pre-corrected, and according to the comparison result between the actual value of the compressor monitoring parameters before pre-correction and the actual value of the compressor monitoring parameters The parameter correction value used when the control parameters are pre-corrected is used for the final correction of the variable frequency control parameters. Through the above setting method, the offset of the frequency conversion control parameters of the compressor can be effectively monitored. When the deviation of the frequency conversion control parameters is greater than the offset threshold, the frequency conversion control parameters will be pre-corrected, and the Compared with the actual value of the pre-corrected compressor monitoring parameters, it is further judged whether to make final corrections to the frequency conversion control parameters, which avoids the problem of compressor control failure caused by large frequency conversion control parameter deviations, and can realize effective compressor control. Frequency conversion control to improve the operating efficiency of the compressor.
在本发明实施例的一个可选实施方式中，压缩机的控制方法除了包含上述步骤S101至步骤S103，还可以包括以下步骤：通过公式(1)所示的方法获取压缩机实际运行中的反电动势常数：In an optional implementation of the embodiment of the present invention, the control method of the compressor may include the following steps in addition to the above step S101 to step S103: obtain the feedback in the actual operation of the compressor through the method shown in formula (1) Electromotive force constant:
公式(1)中各参数的含义：Ke为实际运行中的反电动势常数，V
反为压缩机实际运行中的反电动势，r为压缩机实际运行中的转速。
The meaning of each parameter in the formula (1): Ke is the counter electromotive force constant in actual operation, V counter is the counter electromotive force in actual operation of the compressor, and r is the speed of the compressor in actual operation.
在本实施方式中，可以根据公式(1)，应用压缩机实际运行中的反电动势以及压缩机实际运行中的转速来计算压缩机实际运行过程中的反电动势常数，其中压缩机实际运行中的反电动势是经过实际检测获得的。其中，反电动势是指反抗电流发生改变的趋势而产生的电动势，根据电磁电流，当磁场发生变化时，其附近的导体会产生感应电压，与加在电感线圈两端的电压数值相等方向相反，这个感应电压即为反电动势。反电动势常数指的是压缩机绕组线圈产生的反电动势与压缩机转速之间的比值关系。In this embodiment, the back electromotive force constant during the actual operation of the compressor can be calculated by using the back electromotive force in the actual operation of the compressor and the speed of the compressor in actual operation according to the formula (1), wherein the back electromotive force constant in the actual operation of the compressor The counter electromotive force is obtained through actual testing. Among them, the counter electromotive force refers to the electromotive force generated against the changing trend of the current. According to the electromagnetic current, when the magnetic field changes, the conductor near it will generate an induced voltage, which is equal to and opposite to the voltage applied to both ends of the inductance coil. The induced voltage is the counter electromotive force. The counter electromotive force constant refers to the ratio relationship between the counter electromotive force generated by the compressor winding coil and the compressor speed.
下面对步骤S101和步骤S103作进一步地说明。Step S101 and step S103 will be further described below.
在本发明实施例的一个可选实施方式中，变频控制参数至少包括压缩机的反电动势常数和电感量，预设的变频控制参数的初始值为上一次对变频控制参数进行最终修正时采用的参数修正值。其中，电感量是指压缩机绕组线圈自感应能力的物理量。In an optional implementation of the embodiment of the present invention, the variable frequency control parameters include at least the counter electromotive force constant and the inductance of the compressor, and the preset initial value of the variable frequency control parameters is the one used when the final correction of the variable frequency control parameters was performed last time. Parameter correction value. Among them, the inductance refers to the physical quantity of the self-induction ability of the compressor winding coil.
步骤S101可以进一步包括：Step S101 may further include:
根据压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用以下公式(2)所示的方法获取变频控制参数的偏移量：According to the frequency conversion control parameters in the actual operation of the compressor and the preset initial value of the frequency conversion control parameters, and the method shown in the following formula (2) is used to obtain the offset of the frequency conversion control parameters:
公式(2)中各参数的含义是：a为变频控制参数的偏移量，F
0为预设的变频控制参数的初始值，F为压缩机实际运行中的变频控制参数。
The meanings of the parameters in the formula (2) are: a is the offset of the variable frequency control parameter, F0 is the initial value of the preset variable frequency control parameter, and F is the variable frequency control parameter in the actual operation of the compressor.
在本实施方式中，变频控制参数可以包括压缩机的反电动势常数和电感量，预设的变频控制参数的初始值可以为上一次对变频控制参数进 行最终修正时采用的参数修正值。可以根据压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，根据公式(2)所示的方法获取变频控制参数的偏移量。In this embodiment, the variable frequency control parameters may include the counter electromotive force constant and the inductance of the compressor, and the preset initial values of the variable frequency control parameters may be the parameter correction values used in the last final correction of the variable frequency control parameters. The offset of the variable frequency control parameter can be obtained according to the method shown in formula (2) according to the variable frequency control parameter in the actual operation of the compressor and the preset initial value of the variable frequency control parameter.
在一个实施方式中，变频控制参数可以为压缩机的反电动势常数。在实际运行控制过程中，压缩机根据预设的反电动势常数计算压缩机的反电动势，并根据压缩机的反电动势获取需要施加给压缩机的电压值，进一步地，根据施加给压缩机的电压值，改变压缩机的转速，并改变压缩机的运行频率，实现压缩机的变频控制。而当绕组线圈的材料特性下降后，会导致线圈产生的反电动势的下降。而压缩机依旧按照预设的反电动势常数计算控制压缩机的反电动势，则会导致计算的控制压缩机的反电动势要高于线圈实际产生的反电动势。这样就会造成压缩机施加的电压高于压缩机实际需要的电压值，进一步导致控制压缩机运行的转速和频率与压缩机的实际运行过程中的转速和频率产生偏差，导致压缩机控制失败，并造成输出效率降低。在本实施方式中，压缩机可以根据压缩机实际运行中测量的反电动势，以及压缩机实际运行中的转速，根据公式(1)计算出要压缩机实际运行中的反电动势常数。并应用公式(2)计算出反电动势常数的偏移量。可以将计算出的反电动势常数的偏移量与预设的反电动势常数的偏移量阈值进行比较，当反电动势常数的偏移量大于偏移量阈值时，则对反电动势常数进行预修正。In one embodiment, the variable frequency control parameter may be the counter electromotive force constant of the compressor. In the actual operation control process, the compressor calculates the back electromotive force of the compressor according to the preset back electromotive force constant, and obtains the voltage value that needs to be applied to the compressor according to the back electromotive force of the compressor, and further, according to the voltage applied to the compressor Value, change the speed of the compressor, and change the operating frequency of the compressor to realize the frequency conversion control of the compressor. And when the material properties of the winding coil decrease, it will lead to a decrease in the counter electromotive force generated by the coil. However, the compressor still calculates and controls the back EMF of the compressor according to the preset back EMF constant, which will cause the calculated back EMF of the control compressor to be higher than the actual back EMF generated by the coil. This will cause the voltage applied by the compressor to be higher than the actual voltage value required by the compressor, which will further lead to a deviation between the speed and frequency of the compressor running and the actual speed and frequency of the compressor, resulting in compressor control failure. And cause the output efficiency to decrease. In this embodiment, the compressor can calculate the back electromotive force constant of the compressor in actual operation according to formula (1) according to the back electromotive force measured during the actual operation of the compressor and the speed of the compressor during actual operation. And apply the formula (2) to calculate the offset of the back electromotive force constant. The calculated offset of the back EMF constant can be compared with the preset offset threshold of the back EMF constant, and when the offset of the back EMF constant is greater than the offset threshold, the back EMF constant is pre-corrected .
在另一个实施方式中，变频控制参数可以是压缩机的电感量。在实际运行控制过程中，压缩机可以根据预设的电感量来获取压缩机定子绕组不同转子位置下的脉冲电压的波形，进一步根据脉冲电压的波形确定定子绕组的电流变化率。一般而言，电感减小，电流变化率会增大，电感增大，电流变化率会减小，即绕组的电流变化率与其电感的大小成反比。根据这个变化规律，可以检测出压缩机电感量最小点，即为转子的初始位置区间。而当绕组线圈的材料特性下降后，会导致线圈的电感量下降。这样就会造成控制压缩机的预设电感量高于压缩机的实际电感量，进一步导致绕组不同转子位置的脉冲电压的波形发生偏移，导致转子初始位置确定不准确，会使压缩机在启动过程中出现控制失败，以及输出效率降低的问题。在本实施方式中，压缩机可以根据压缩机实际运行中测量的电感量，并应用公式(2)计算出电感量的偏移量。可以将计算出的电感量的偏移 量与预设的电感量的偏移量阈值进行比较，当电感量的偏移量大于偏移量阈值时，则对电感量进行预修正。In another embodiment, the variable frequency control parameter may be the inductance of the compressor. In the actual operation control process, the compressor can obtain the waveform of the pulse voltage of the stator winding of the compressor under different rotor positions according to the preset inductance, and further determine the current change rate of the stator winding according to the waveform of the pulse voltage. Generally speaking, if the inductance decreases, the rate of change of current will increase, and if the inductance increases, the rate of change of current will decrease, that is, the rate of change of current in the winding is inversely proportional to the size of its inductance. According to this change law, the minimum point of compressor inductance can be detected, which is the initial position interval of the rotor. When the material properties of the winding coil decrease, the inductance of the coil will decrease. This will cause the preset inductance of the compressor to be controlled to be higher than the actual inductance of the compressor, which will further cause the waveform of the pulse voltage of the different rotor positions of the winding to shift, resulting in inaccurate determination of the initial position of the rotor, which will cause the compressor to start. In the process, control failures and output efficiency reduction problems occurred. In this implementation manner, the compressor may calculate the offset of the inductance according to the inductance measured during the actual operation of the compressor, and apply the formula (2). The calculated inductance offset can be compared with a preset inductance offset threshold, and when the inductance offset is greater than the offset threshold, the inductance is pre-corrected.
在另一个实施方式中，预设的变频控制参数的初始值可以为上一次对变频控制参数进行最终修正时采用的参数修正值。也就是说，可以根据实际运行过程中的需要，每间隔时间T(T>0)获取实际运行中的变频控制参数，并根据上述公式(2)计算变频控制参数的偏移量，根据步骤S102的方法判断是否对变频控制参数进行预修正，并进一步根据步骤S103的方法判断是否对变频控制参数进行最终修正。如果对变频控制参数进行最终修正，则可以将实际运行中的变频控制参数存入压缩机的寄存器中，根据该变频控制参数对压缩机进行变频控制；并可以在间隔T时间后，再次获取压缩机实际运行过程中的变频控制参数与寄存器中存储的变频控制参数进行比较。通过这样的循环过程，能够实现压缩机变频控制参数根据压缩机的实际运行情况进行自修正，能够有效避免压缩机运行过程中材料特性下降造成的压缩机控制失败的情况发生。In another embodiment, the preset initial value of the variable frequency control parameter may be the parameter correction value used when the final correction of the variable frequency control parameter was performed last time. That is to say, according to the needs in the actual operation process, the frequency conversion control parameters in actual operation can be obtained every interval T (T>0), and the offset of the frequency conversion control parameters can be calculated according to the above formula (2), according to step S102 The method for judging whether to perform pre-correction on the frequency conversion control parameters, and further judging whether to perform final correction on the frequency conversion control parameters according to the method in step S103. If the frequency conversion control parameters are finally corrected, the frequency conversion control parameters in actual operation can be stored in the register of the compressor, and the frequency conversion control of the compressor can be performed according to the frequency conversion control parameters; Compare the frequency conversion control parameters in the actual running process of the machine with the frequency conversion control parameters stored in the register. Through such a cyclic process, the frequency conversion control parameters of the compressor can be self-corrected according to the actual operation of the compressor, which can effectively avoid the compressor control failure caused by the decline in material properties during the operation of the compressor.
在本发明实施例的一个可选实施方式中，监控参数包括压缩机的运行效率和影响运行效率的压缩机参数，其中，影响运行效率的压缩机参数至少包括压缩机的相电流。步骤S103可以进一步包括：In an optional implementation manner of the embodiment of the present invention, the monitored parameters include the operating efficiency of the compressor and compressor parameters affecting the operating efficiency, wherein the compressor parameters affecting the operating efficiency at least include phase currents of the compressor. Step S103 may further include:
当监控参数是压缩机的运行效率时，若进行预修正前预设的运行效率的实际值小于进行预修正后运行效率的实际值，则进行最终修正；否则不进行最终修正；When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the preset operating efficiency before the pre-correction is smaller than the actual value of the operating efficiency after the pre-correction, the final correction is performed; otherwise, the final correction is not performed;
当监控参数是影响运行效率的压缩机参数时，若压缩机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行最终修正；否则不进行最终修正。When the monitoring parameter is a compressor parameter that affects the operation efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operation efficiency of the compressor, the final correction is performed; otherwise, the final correction is not performed.
在本实施方式中，监控参数可以包括压缩机的运行效率和影响运行效率的压缩机参数，其中影响运行效率的压缩机参数可以至少包括压缩机的相电流。In this embodiment, the monitoring parameters may include compressor operating efficiency and compressor parameters affecting operating efficiency, wherein the compressor parameters affecting operating efficiency may at least include phase current of the compressor.
在一个实施方式中，当监控参数是压缩机的运行效率时，可以获取压缩机进行预修正前预设的运行效率的实际值以及进行预修正后运行效率的实际值，当进行预修正前预设的运行效率的实际值小于进行预修正后运行效率的实际值，则可以进行最终修正，否则不进行最终修正。即，进行预修正后如果压缩机的运行效率提高，则进行最终修正，否则不进行最 终修正。In one embodiment, when the monitoring parameter is the operating efficiency of the compressor, the actual value of the preset operating efficiency of the compressor before the pre-correction and the actual value of the actual value of the operating efficiency after the pre-correction can be obtained. If the actual value of the assumed operating efficiency is smaller than the actual value of the operating efficiency after the pre-correction, the final correction can be performed, otherwise the final correction will not be performed. That is, if the operating efficiency of the compressor is improved after the pre-correction is performed, the final correction will be performed; otherwise, the final correction will not be performed.
在一个实施方式中，当监控参数是压缩机的相电流时，可以获取压缩机进行预修正前压缩机的相电流的实际值，以及进行预修正后的压缩机相电流的实际值，当预修正后的相电流实际值小于预修正前的相电流实际值时，则可以进行最终修正，否则不进行最终修正。也就是说，当压缩机的相电流实际值降低后，压缩机的损耗效率降低，使得压缩机的运行效率升高，则可以进行最终修正，否则不进行最终修正。In one embodiment, when the monitoring parameter is the phase current of the compressor, the actual value of the phase current of the compressor before pre-correction and the actual value of the phase current of the compressor after pre-correction can be obtained. When the actual value of the phase current after correction is smaller than the actual value of the phase current before pre-correction, the final correction can be performed, otherwise the final correction is not performed. That is to say, when the actual value of the phase current of the compressor decreases, the loss efficiency of the compressor decreases, so that the operating efficiency of the compressor increases, and the final correction can be performed; otherwise, the final correction is not performed.
需要指出的是，尽管上述实施例中将各个步骤按照特定的先后顺序进行了描述，但是本领域技术人员可以理解，为了实现本发明的效果，不同的步骤之间并非必须按照这样的顺序执行，其可以同时(并行)执行或以其他顺序执行，这些变化都在本发明的保护范围之内。It should be pointed out that, although the steps are described in a specific order in the above embodiments, those skilled in the art can understand that in order to achieve the effect of the present invention, different steps do not have to be executed in this order. They can be performed simultaneously (parallel) or in other sequences, and these variations are within the protection scope of the present invention.
进一步，本发明还提供了一种压缩机的控制系统。Further, the present invention also provides a compressor control system.
参阅附图2，图2是根据本发明的一个实施例的压缩机的控制系统的主要结构框图。如图2所示，本发明实施例中的压缩机的控制系统可以包括参数偏移量获取模块、参数预修正模块和参数最终修正模块。在本实施例中，参数偏移量获取模块可以被配置为根据压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取变频控制参数的偏移量。参数预修正模块可以被配置为当偏移量大于偏移量阈值时，对变频控制参数进行预修正。参数最终修正模块可以被配置为根据进行预修正前预设的压缩机监控参数的实际值和进行预修正后压缩机监控参数的实际值的比较结果，选择性地根据对变频控制参数进行预修正时采用的参数修正值对变频控制参数进行最终修正。Referring to accompanying drawing 2, Fig. 2 is a main structural block diagram of a control system of a compressor according to an embodiment of the present invention. As shown in FIG. 2 , the control system of the compressor in the embodiment of the present invention may include a parameter offset acquisition module, a parameter pre-correction module and a parameter final correction module. In this embodiment, the parameter offset acquiring module may be configured to acquire the offset of the variable frequency control parameter according to the variable frequency control parameter in actual operation of the compressor and the preset initial value of the variable frequency control parameter. The parameter pre-correction module can be configured to pre-correct the variable frequency control parameters when the offset is greater than the offset threshold. The parameter final correction module can be configured to selectively perform pre-correction on the frequency conversion control parameters according to the comparison result between the actual value of the compressor monitoring parameter preset before the pre-correction and the actual value of the compressor monitoring parameter after the pre-correction The parameter correction value adopted at the time is used to make the final correction to the frequency conversion control parameters.
在一个实施方式中，监控参数可以包括压缩机的运行效率和影响运行效率的压缩机参数，其中，影响运行效率的压缩机参数至少包括压缩机的相电流；参数最终修正模块可以被进一步配置为根据以下步骤进行变频控制参数的最终修正：当监控参数是压缩机的运行效率时，若进行预修正前预设的运行效率的实际值小于进行预修正后运行效率的实际值，则进行最终修正；否则不进行最终修正；当监控参数是影响运行效率的压缩机参数时，若压缩机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行最终修正；否则不进行最终修正。In one embodiment, the monitoring parameters may include the operating efficiency of the compressor and the compressor parameters affecting the operating efficiency, wherein the compressor parameters affecting the operating efficiency at least include the phase current of the compressor; the parameter final correction module may be further configured as The final correction of the frequency conversion control parameters is carried out according to the following steps: When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the preset operating efficiency before the pre-correction is smaller than the actual value of the operating efficiency after the pre-correction, the final correction is performed ;Otherwise, the final correction will not be performed; when the monitoring parameter is a compressor parameter that affects the operating efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operating efficiency of the compressor, the final correction will be performed; otherwise, the final correction will not be performed. fix.
在一个实施方式中，变频控制参数可以至少包括压缩机的反电动势 常数和电感量，预设的变频控制参数的初始值为上一次对变频控制参数进行最终修正时采用的参数修正值；参数偏移量获取模块被配置为根据以下步骤获取变频参数的偏移量：根据压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用下式所示的方法获取变频控制参数的偏移量：In one embodiment, the variable frequency control parameters may at least include the counter electromotive force constant and the inductance of the compressor, and the preset initial values of the variable frequency control parameters are the parameter correction values used when the final correction of the variable frequency control parameters was performed last time; The displacement acquisition module is configured to obtain the offset of the frequency conversion parameters according to the following steps: according to the frequency conversion control parameters in the actual operation of the compressor and the preset initial value of the frequency conversion control parameters, and use the method shown in the following formula to obtain the frequency conversion control parameters offset of:
其中，a为变频控制参数的偏移量，F
0为预设的变频控制参数的初始值，F为压缩机实际运行中的变频控制参数。
Wherein, a is the offset of the frequency conversion control parameter, F 0 is the initial value of the preset frequency conversion control parameter, and F is the frequency conversion control parameter in the actual operation of the compressor.
在一个实施方式中，压缩机的控制系统还可以包括反电动常数计算模块。反电动势常数计算模块可以被配置为通过下式所示的方法获取压缩机实际运行中的反电动势常数：In one embodiment, the control system of the compressor may further include a counter electrokinetic constant calculation module. The counter electromotive force constant calculation module can be configured to obtain the counter electromotive force constant in the actual operation of the compressor through the method shown in the following formula:
其中，Ke为实际运行中的反电动势常数，V
反为压缩机实际运行中的反电动势，r为压缩机实际运行中的转速。
Among them, Ke is the counter electromotive force constant in actual operation, V counter is the counter electromotive force in actual operation of the compressor, and r is the speed of the compressor in actual operation.
上述压缩机的控制系统以用于执行图1所示的压缩机的控制方法实施例，两者的技术原理、所解决的技术问题及产生的技术效果相似，本技术领域技术人员可以清楚地了解到，为了描述的方便和简洁，压缩机的控制系统的具体工作过程及有关说明，可以参考压缩机的控制方法的实施例所描述的内容，此处不再赘述。The control system of the above-mentioned compressor is used to execute the embodiment of the control method of the compressor shown in FIG. It is understood that, for the convenience and brevity of description, for the specific working process and relevant descriptions of the control system of the compressor, reference may be made to the content described in the embodiment of the control method of the compressor, which will not be repeated here.
本领域技术人员能够理解的是，本发明实现上述一实施例的方法中的全部或部分流程，也可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质可以包括：能够携带所述计算机程序代码的任何实体或装置、介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器、随机存取存储器、电载波信号、电信信号以及软件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根据立法和专利实践，计算机可读介质不包括电 载波信号和电信信号。Those skilled in the art can understand that all or part of the process in the method of the above-mentioned embodiment of the present invention can also be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer-readable In the storage medium, when the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal , telecommunication signals, and software distribution media. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, computer-readable media Excludes electrical carrier signals and telecommunication signals.
进一步，本发明还提供了一种压缩机的控制系统。在根据本发明的一个压缩机的控制系统实施例中，压缩机的控制系统可以包括处理器和存储装置，存储装置可以被配置成存储执行上述方法实施例的压缩机的控制方法的程序，处理器可以被配置成用于执行存储装置中的程序，该程序包括但不限于执行上述方法实施例的压缩机的控制方法的程序。为了便于说明，仅示出了与本发明实施例相关的部分，具体技术细节未揭示的，请参照本发明实施例方法部分。该控制系统可以是包括各种电子设备形成的控制设备。Further, the present invention also provides a compressor control system. In an embodiment of a compressor control system according to the present invention, the compressor control system may include a processor and a storage device, and the storage device may be configured to store a program for executing the compressor control method of the above method embodiment, and process The device may be configured to execute the program in the storage device, the program includes but not limited to the program for executing the compressor control method of the above method embodiment. For ease of description, only the parts related to the embodiments of the present invention are shown, and for specific technical details not disclosed, please refer to the method part of the embodiments of the present invention. The control system may be a control device formed including various electronic devices.
进一步，本发明还提供了一种空调器。在根据本发明的一个空调器实施例中，空调器可以包括空调本体以及上述压缩机的控制系统实施例所述的压缩机的控制系统。Further, the present invention also provides an air conditioner. In an embodiment of the air conditioner according to the present invention, the air conditioner may include an air conditioner body and the control system of the compressor described in the above embodiment of the control system of the compressor.
进一步，应该理解的是，由于各个模块的设定仅仅是为了说明本发明的系统的功能单元，这些模块对应的物理器件可以是处理器本身，或者处理器中软件的一部分，硬件的一部分，或者软件和硬件结合的一部分。因此，图中的各个模块的数量仅仅是示意性的。Further, it should be understood that since the setting of each module is only to illustrate the functional units of the system of the present invention, the physical device corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or Part of a combination of software and hardware. Therefore, the number of each module in the figure is only illustrative.
本领域技术人员能够理解的是，可以对系统中的各个模块进行适应性地拆分或合并。对具体模块的这种拆分或合并并不会导致技术方案偏离本发明的原理，因此，拆分或合并之后的技术方案都将落入本发明的保护范围内。Those skilled in the art can understand that each module in the system can be split or merged adaptively. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, therefore, the technical solutions after splitting or merging will all fall within the protection scope of the present invention.
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.
Claims (10)
- 一种压缩机的控制方法，其特征在于，所述控制方法包括：A control method for a compressor, characterized in that the control method comprises:根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取所述变频控制参数的偏移量；Acquiring the offset of the frequency conversion control parameter according to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter;当所述偏移量大于偏移量阈值时，对所述变频控制参数进行预修正；When the offset is greater than an offset threshold, pre-correct the variable frequency control parameters;根据进行所述预修正前预设的压缩机监控参数的实际值和进行所述预修正后所述压缩机监控参数的实际值的比较结果，选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正。According to the comparison result between the actual value of the compressor monitoring parameter preset before the pre-correction and the actual value of the compressor monitoring parameter after the pre-correction, selectively pre-correcting the frequency conversion control parameter The parameter correction value adopted at the time is used for final correction of the frequency conversion control parameters.
- 根据权利要求1所述的压缩机的控制方法，其特征在于，所述监控参数包括压缩机的运行效率和影响所述运行效率的压缩机参数，其中，所述影响所述运行效率的压缩机参数至少包括压缩机的相电流；The control method of a compressor according to claim 1, wherein the monitoring parameters include compressor operating efficiency and compressor parameters affecting the operating efficiency, wherein the compressor affecting the operating efficiency The parameters include at least the phase current of the compressor;“选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正”的步骤具体包括：The step of "selectively performing final correction on the variable frequency control parameter according to the parameter correction value used when pre-correcting the variable frequency control parameter" specifically includes:当所述监控参数是所述压缩机的运行效率时，若进行所述预修正前预设的所述运行效率的实际值小于进行所述预修正后所述运行效率的实际值，则进行所述最终修正；否则不进行所述最终修正；When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the operating efficiency preset before performing the pre-correction is smaller than the actual value of the operating efficiency after performing the pre-correction, then perform the said final amendment; otherwise said final amendment shall not be made;当所述监控参数是影响所述运行效率的压缩机参数时，若所述压缩机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行所述最终修正；否则不进行所述最终修正。When the monitoring parameter is a compressor parameter that affects the operating efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operating efficiency of the compressor, then perform the final correction; otherwise, do not perform Said Final Amendment.
- 根据权利要求1所述的压缩机的控制方法，其特征在于，所述变频控制参数至少包括压缩机的反电动势常数和电感量，所述预设的变频控制参数的初始值为上一次对所述变频控制参数进行最终修正时采用的参数修正值；“获取所述变频控制参数的偏移量”的步骤具体包括：The control method of the compressor according to claim 1, wherein the variable frequency control parameters include at least the counter electromotive force constant and the inductance of the compressor, and the initial value of the preset variable frequency control parameters is the last time The parameter correction value adopted when the frequency conversion control parameter is finally corrected; the step of "obtaining the offset of the frequency conversion control parameter" specifically includes:根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用下式所示的方法获取变频控制参数的偏移量：According to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter, and adopt the method shown in the following formula to obtain the offset of the frequency conversion control parameter:
其中，a为所述变频控制参数的偏移量，F 0为所述预设的变频控制参数的初始值，F为所述压缩机实际运行中的变频控制参数。 Wherein, a is the offset of the frequency conversion control parameter, F0 is the initial value of the preset frequency conversion control parameter, and F is the frequency conversion control parameter in the actual operation of the compressor. - 根据权利要求3所述的压缩机的控制方法，其特征在于，所述方法还包括通过下式所示的方法获取所述压缩机实际运行中的反电动势常数：The control method of the compressor according to claim 3, characterized in that, the method further comprises obtaining the counter electromotive force constant of the compressor in actual operation by the method shown in the following formula:
其中，Ke为所述实际运行中的反电动势常数，V 反为所述压缩机实际运行中的反电动势，r为所述压缩机实际运行中的转速。 Wherein, Ke is the counter electromotive force constant in the actual operation, V counter is the counter electromotive force in the actual operation of the compressor, and r is the rotational speed of the compressor in the actual operation. - 一种压缩机的控制系统，其特征在于，所述控制系统包括：A compressor control system, characterized in that the control system includes:参数偏移量获取模块，其被配置为根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数的初始值，获取所述变频控制参数的偏移量；A parameter offset acquisition module configured to acquire the offset of the variable frequency control parameter according to the variable frequency control parameter in the actual operation of the compressor and the preset initial value of the variable frequency control parameter;参数预修正模块，其被配置为当所述偏移量大于偏移量阈值时，对所述变频控制参数进行预修正；A parameter pre-correction module configured to pre-correct the variable frequency control parameters when the offset is greater than an offset threshold;参数最终修正模块，其被配置为根据进行所述预修正前预设的压缩机监控参数的实际值和进行所述预修正后所述压缩机监控参数的实际值的比较结果，选择性地根据对所述变频控制参数进行预修正时采用的参数修正值对所述变频控制参数进行最终修正。The parameter final correction module, which is configured to selectively according to The parameter correction value used in the pre-correction of the frequency conversion control parameter is used to perform final correction on the frequency conversion control parameter.
- 根据权利要求5所述的压缩机的控制系统，其特征在于，所述监控参数包括压缩机的运行效率和影响所述运行效率的压缩机参数，其中，所述影响所述运行效率的压缩机参数至少包括压缩机的相电流；The control system of a compressor according to claim 5, wherein the monitoring parameters include compressor operating efficiency and compressor parameters affecting the operating efficiency, wherein the compressor affecting the operating efficiency The parameters include at least the phase current of the compressor;所述参数最终修正模块被进一步配置为根据以下步骤进行所述变频控制参数的最终修正：The parameter final correction module is further configured to perform the final correction of the frequency conversion control parameters according to the following steps:当所述监控参数是所述压缩机的运行效率时，若进行所述预修正前预设的所述运行效率的实际值小于进行所述预修正后所述运行效率的实际值，则进行所述最终修正；否则不进行所述最终修正；When the monitoring parameter is the operating efficiency of the compressor, if the actual value of the operating efficiency preset before performing the pre-correction is smaller than the actual value of the operating efficiency after performing the pre-correction, then perform the said final amendment; otherwise said final amendment shall not be made;当所述监控参数是影响所述运行效率的压缩机参数时，若所述压缩 机参数落入预设的降低压缩机的运行效率的参数值范围内，则进行所述最终修正；否则不进行所述最终修正。When the monitoring parameter is a compressor parameter that affects the operating efficiency, if the compressor parameter falls within the preset parameter value range that reduces the operating efficiency of the compressor, then perform the final correction; otherwise, do not perform Said Final Amendment.
- 根据权利要求5所述的压缩机的控制系统，其特征在于，所述变频控制参数至少包括压缩机的反电动势常数和电感量，所述预设的变频控制参数的初始值为上一次对所述变频控制参数进行最终修正时采用的参数修正值；所述参数偏移量获取模块被配置为根据以下步骤获取所述变频参数的偏移量：The control system of the compressor according to claim 5, wherein the variable frequency control parameters include at least the counter electromotive force constant and the inductance of the compressor, and the initial value of the preset variable frequency control parameters is the last time The parameter correction value adopted when the frequency conversion control parameter is finally corrected; the parameter offset acquisition module is configured to acquire the offset of the frequency conversion parameter according to the following steps:根据所述压缩机实际运行中的变频控制参数与预设的变频控制参数初始值，并采用下式所示的方法获取变频控制参数的偏移量：According to the frequency conversion control parameter in the actual operation of the compressor and the preset initial value of the frequency conversion control parameter, and adopt the method shown in the following formula to obtain the offset of the frequency conversion control parameter:
其中，a为所述变频控制参数的偏移量，F 0为所述预设的变频控制参数的初始值，F为所述压缩机实际运行中的变频控制参数。 Wherein, a is the offset of the frequency conversion control parameter, F0 is the initial value of the preset frequency conversion control parameter, and F is the frequency conversion control parameter in the actual operation of the compressor. - 根据权利要求7所述的压缩机的控制系统，其特征在于，所述系统还包括反电动常数计算模块，所述反电动势常数计算模块被配置为通过下式所示的方法获取所述压缩机实际运行中的反电动势常数：The control system of the compressor according to claim 7, characterized in that, the system further comprises a counter electromotive constant calculation module, and the counter electromotive constant calculation module is configured to obtain the compressor by the method shown in the following formula Back EMF constant in actual operation:
其中，Ke为所述实际运行中的反电动势常数，V 反为所述压缩机实际运行中的反电动势，r为所述压缩机实际运行中的转速。 Wherein, Ke is the counter electromotive force constant in the actual operation, V counter is the counter electromotive force in the actual operation of the compressor, and r is the rotational speed of the compressor in the actual operation. - 一种压缩机的控制系统，包括处理器和存储装置，所述存储装置适于存储多条程序代码，其特征在于，所述程序代码适于由所述处理器加载并运行以执行权利要求1至4中任一项所述的压缩机的控制方法。A control system for a compressor, comprising a processor and a storage device, the storage device is suitable for storing a plurality of program codes, characterized in that the program codes are suitable for being loaded and run by the processor to implement claim 1 The control method of the compressor described in any one of to 4.
- 一种空调器，其特征在于，所述空调器包括空调本体以及所述权利要求5至9中任一项所述的压缩机的控制系统。An air conditioner, characterized in that the air conditioner comprises an air conditioner body and a control system for a compressor according to any one of claims 5 to 9.
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