WO2023202072A1 - 用于控制压缩机的方法及装置、空调器、存储介质 - Google Patents

用于控制压缩机的方法及装置、空调器、存储介质 Download PDF

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Publication number
WO2023202072A1
WO2023202072A1 PCT/CN2022/133624 CN2022133624W WO2023202072A1 WO 2023202072 A1 WO2023202072 A1 WO 2023202072A1 CN 2022133624 W CN2022133624 W CN 2022133624W WO 2023202072 A1 WO2023202072 A1 WO 2023202072A1
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WIPO (PCT)
Prior art keywords
voltage
bus voltage
compressor
bus
target
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PCT/CN2022/133624
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English (en)
French (fr)
Inventor
刘运涛
邓闯
施磊
董金盛
董晓莉
陈强
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2023202072A1 publication Critical patent/WO2023202072A1/zh

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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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content

Definitions

  • This application relates to the technical field of smart home appliances, for example, to a method and device for controlling a compressor, an air conditioner, and a storage medium.
  • air conditioners realize the flow of refrigerant in the pipeline through the operation of the compressor.
  • the compressor is controlled by the drive circuit to realize the operation of the compressor under different working conditions.
  • Methods for controlling the compressor in the related art include: obtaining the load parameters and power supply voltage of the compressor; calculating the boost coefficient of the power factor correction (PFC, Power Factor Correction) boost circuit based on the load parameters; based on the boost coefficient and The power supply voltage is calculated to obtain the DC reference voltage of the drive circuit; the DC reference voltage is used as the target value to perform feedback control on the power factor correction boost circuit to adjust the DC bus voltage.
  • PFC Power Factor Correction
  • This method can control the compressor and reduce the loss of devices in the boost circuit by adjusting the DC bus voltage.
  • the boost coefficient is determined based on the load parameters of the compressor, and the DC reference voltage is determined based on the boost coefficient and the power supply voltage.
  • the output value of the power supply voltage is small, the calculated DC reference voltage is too small to reach the target value, resulting in low utilization of the DC bus voltage.
  • Embodiments of the present disclosure provide a method and device for controlling a compressor, an air conditioner, and a storage medium to improve the utilization of DC bus voltage.
  • the drive circuit of the compressor includes: a rectifier circuit, used to rectify the AC input voltage; a boost circuit, the input side is connected to the rectifier circuit, and the output side is connected to the DC bus, used to rectify the rectifier circuit.
  • the output voltage is boosted; the method includes: obtaining the phase voltage peak value of the compressor; determining the first DC bus voltage according to the phase voltage peak value; obtaining the AC input voltage; determining the second DC bus voltage according to the AC input voltage; The target DC bus voltage is determined based on the first DC bus voltage and the second DC bus voltage.
  • determining the target DC bus voltage according to the first DC bus voltage and the second DC bus voltage includes: determining the relationship between the first DC bus voltage and the second DC bus voltage; When the voltage is less than the second DC bus voltage, determine the target DC bus voltage to be the second DC bus voltage; when the first DC bus voltage is greater than or equal to the second DC bus voltage, determine the target DC bus voltage to be the first DC bus voltage. DC bus voltage.
  • determining the target DC bus voltage according to the first DC bus voltage and the second DC bus voltage also includes: determining the relationship between the target DC bus voltage and the DC bus voltage limit value; when the target DC bus voltage is greater than If the DC bus voltage is limited, adjust the target DC bus voltage to the DC bus voltage limiter; if the target DC bus voltage is less than or equal to the DC bus voltage limiter, keep the target DC bus voltage unchanged.
  • determining the first DC bus voltage according to the phase voltage peak value includes: obtaining the DC bus voltage target utilization rate; determining the ratio of the phase voltage peak value to the DC bus voltage target utilization rate as the first DC bus voltage.
  • determining the second DC bus voltage according to the AC input voltage includes: determining the average value of the AC input voltage according to the AC input voltage; determining the peak value of the AC input voltage according to the average value of the AC input voltage; determining the peak value of the AC input voltage according to the peak value of the AC input voltage. Second DC bus voltage.
  • determining the second DC bus voltage according to the AC input voltage peak value includes: obtaining a voltage boost coefficient; and determining the product of the AC input voltage peak value and the voltage boost coefficient as the second DC bus voltage.
  • obtaining the phase voltage peak value of the compressor includes: obtaining the direct axis current and the quadrature axis current of the compressor; determining the direct axis voltage and the quadrature axis voltage of the compressor according to the direct axis current and the quadrature axis current; voltage and quadrature-axis voltage to determine the peak phase voltage of the compressor.
  • the device includes a processor and a memory storing program instructions, and the processor is configured to execute the above method for controlling a compressor when executing the program instructions.
  • the air conditioner includes: a compressor; a drive circuit connected to the compressor for outputting a drive signal to the compressor; and the above-mentioned device for controlling the compressor; wherein the drive circuit includes: a rectifier Circuit, used to rectify the AC input voltage; boost circuit, the input side is connected to the rectifier circuit, and the output side is connected to the DC bus, used to boost the output voltage of the rectifier circuit; inverter circuit, the input side is connected to the DC bus connection, the output side is connected to the compressor.
  • the drive circuit includes: a rectifier Circuit, used to rectify the AC input voltage; boost circuit, the input side is connected to the rectifier circuit, and the output side is connected to the DC bus, used to boost the output voltage of the rectifier circuit; inverter circuit, the input side is connected to the DC bus connection, the output side is connected to the compressor.
  • the storage medium stores program instructions, and when the program instructions are run, the above-mentioned method for controlling the compressor is executed.
  • the first DC bus voltage of the boost circuit is determined as one of the target DC bus voltages to be determined.
  • the second DC bus voltage of the boost circuit is determined as one of the target DC bus voltages to be determined.
  • the target DC bus voltage is determined as the expected output voltage of the boost circuit. Since the determination of the target DC bus voltage is based on the phase voltage peak value and AC input voltage of the compressor respectively, by determining the optimal DC bus voltage as the target DC bus voltage, the target DC bus voltage reaches the target value to improve the utilization of the DC bus voltage. Rate.
  • Figure 1 is a schematic structural diagram of an air conditioner provided by an embodiment of the present disclosure
  • Figure 2 is a control flow chart of a method for controlling a compressor provided by an embodiment of the present disclosure
  • Figure 3 is a schematic diagram of a method for controlling a compressor provided by an embodiment of the present disclosure
  • Figure 4 is a schematic diagram of another method for controlling a compressor provided by an embodiment of the present disclosure.
  • Figure 5 is a schematic diagram of another method for controlling a compressor provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic diagram of another method for controlling a compressor provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic diagram of another method for controlling a compressor provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic diagram of a device for controlling a compressor provided by an embodiment of the present disclosure.
  • 11 Compressor; 12: Drive circuit; 13: Control circuit; 121: Rectifier circuit; 122: Boost circuit; 123: Inverter circuit; 41: Processor; 42: Memory; 43: Communication interface; 44: Bus.
  • A/B means: A or B.
  • a and/or B means: A or B, or A and B.
  • correspondence can refer to an association relationship or a binding relationship.
  • correspondence between A and B refers to an association relationship or a binding relationship between A and B.
  • an embodiment of the present disclosure provides an air conditioner, including a compressor 11 and a drive circuit 12 .
  • the drive circuit 12 is connected to the compressor 11 and is used to output a drive signal to the compressor 11 .
  • the drive circuit 12 includes a rectifier circuit 121, a boost circuit 122 and an inverter circuit 123.
  • the input side of the rectifier circuit 121 is connected to the AC input power supply and is used to rectify the AC input voltage.
  • the input side of the boost circuit 122 is connected to the output side of the rectifier circuit 121, and the output side is connected to the DC bus, and is used to boost the output voltage of the rectifier circuit 121.
  • the voltage boosting circuit 122 is also used for power factor correction to improve the utilization rate of electric energy.
  • the input side of the inverter circuit 123 is connected to the DC bus, and the output side is connected to the compressor 11 for converting the DC bus voltage into an AC voltage with adjustable frequency.
  • the circuit structures of the rectifier circuit 121, the boost circuit 122 and the inverter circuit 123 are topological structures in the prior art, and will not be described again here.
  • the air conditioner also includes a control circuit 13.
  • the control circuit 13 is connected to the compressor 11 and the drive circuit 12 and is used to control the drive circuit 12 according to the peak phase voltage of the compressor 11 .
  • an embodiment of the present disclosure provides a control flow chart of a method for controlling a compressor.
  • the figure shows the information flow in the control process, which ultimately outputs the target DC bus voltage of the boost circuit.
  • the target DC bus voltage can dynamically follow the phase voltage peak of the compressor and changes in the AC input voltage, reduce the loss of devices in the drive circuit, and improve the utilization of the DC bus voltage.
  • U pp is the peak phase voltage of the compressor
  • eta is the target utilization rate of the DC bus voltage
  • U dc1 is the first DC bus voltage
  • U ac is the AC input voltage sampling value
  • U aca is the average AC input voltage
  • ⁇ is the conversion coefficient
  • U acp is the AC input voltage peak value
  • R is the boost coefficient
  • U dc2 is the second DC bus voltage
  • U dcm is the DC bus voltage limiting value
  • U dct is the target DC bus voltage.
  • an embodiment of the present disclosure provides a method for controlling a compressor, including:
  • the air conditioner obtains the peak phase voltage of the compressor.
  • the air conditioner determines the first DC bus voltage based on the phase voltage peak value.
  • the air conditioner obtains AC input voltage.
  • the air conditioner determines the second DC bus voltage based on the AC input voltage.
  • the air conditioner determines the target DC bus voltage based on the first DC bus voltage and the second DC bus voltage.
  • the phase voltage peak value of the compressor is obtained using the method for controlling the compressor provided by the embodiment of the present disclosure.
  • the first DC bus voltage of the boost circuit is determined as one of the target DC bus voltages to be determined.
  • Get AC input voltage According to the AC input voltage, the second DC bus voltage of the boost circuit is determined as one of the target DC bus voltages to be determined.
  • the target DC bus voltage is determined as the expected output voltage of the boost circuit. Since the determination of the target DC bus voltage is based on the phase voltage peak value and AC input voltage of the compressor respectively, by determining the optimal DC bus voltage as the target DC bus voltage, the target DC bus voltage reaches the target value to improve the utilization of the DC bus voltage. Rate.
  • an embodiment of the present disclosure provides another method for controlling a compressor, including:
  • the air conditioner obtains the direct axis current and quadrature axis current of the compressor.
  • the air conditioner determines the direct axis voltage and the quadrature axis voltage of the compressor based on the direct axis current and the quadrature axis current.
  • the air conditioner determines the peak phase voltage of the compressor based on the direct axis voltage and the quadrature axis voltage.
  • the air conditioner determines the first DC bus voltage based on the phase voltage peak value.
  • the air conditioner obtains AC input voltage.
  • the air conditioner determines the second DC bus voltage based on the AC input voltage.
  • the air conditioner determines the target DC bus voltage based on the first DC bus voltage and the second DC bus voltage.
  • the direct axis voltage and the quadrature axis voltage of the compressor are determined through the direct axis current and the quadrature axis current of the compressor, and then the direct axis voltage and the quadrature axis voltage of the compressor are determined.
  • the direct axis current and the quadrature axis current of the compressor are obtained through the field weakening link to obtain the direct axis (d-axis) current, through the speed link and maximum torque current ratio control (MTPA, Maximum Torque Per Ampere ) to obtain the quadrature axis (q-axis) current.
  • MTPA maximum torque current ratio control
  • step S212 determine the direct axis voltage and the quadrature axis voltage of the compressor according to the direct axis current and the quadrature axis current, decouple the direct axis current and the quadrature axis current for the air conditioner, and obtain the direct axis voltage correction value and Quadrature axis voltage correction value.
  • the air conditioner uses the sum of the output value of the direct-axis current controlled by proportional integration (PI, Proportion Integration) and the direct-axis voltage correction value as the direct-axis voltage, and corrects the output value of the quadrature-axis current controlled by proportional integration and the quadrature-axis voltage. The sum of the values is taken as the quadrature axis voltage.
  • the phase voltage peak value of the compressor is determined based on the direct axis voltage and the quadrature axis voltage.
  • the square root of the square of the direct axis voltage and the square of the quadrature axis voltage is summed and then the square root is determined as the phase voltage of the compressor. peak.
  • an embodiment of the present disclosure provides another method for controlling a compressor, including:
  • the air conditioner obtains the peak phase voltage of the compressor.
  • the air conditioner obtains the DC bus voltage target utilization rate.
  • the air conditioner determines the ratio of the peak phase voltage to the target utilization rate of the DC bus voltage as the first DC bus voltage.
  • the air conditioner obtains AC input voltage.
  • the air conditioner determines the second DC bus voltage based on the AC input voltage.
  • the air conditioner determines the target DC bus voltage based on the first DC bus voltage and the second DC bus voltage.
  • the method for controlling the compressor provided by the embodiment of the present disclosure is used to obtain the DC bus voltage target utilization as the desired DC bus voltage utilization.
  • the ratio of the peak phase voltage to the target utilization rate of the DC bus voltage is determined as the first DC bus voltage, so that the undetermined target DC bus voltage reaches the target value.
  • the target utilization rate of the DC bus voltage in steps S221 and S222 is the ratio of the desired peak phase voltage of the compressor to the DC bus voltage.
  • the air conditioner in step S221 obtains the target utilization rate of the DC bus voltage, and determines different target utilization rates of the DC bus voltage according to different modulation areas for the air conditioner.
  • SVPWM Space Vector Pulse Width Modulation
  • the maximum value of the DC bus voltage target utilization is usually 0.577.
  • the maximum value of the DC bus voltage target utilization is usually 0.625.
  • the modulation area it can be determined by the peak phase voltage of the compressor and the DC bus voltage. In this way, by selecting different DC bus voltage target utilization rates in different modulation areas, the DC bus voltage can meet the needs of the compressor under different operating conditions, reducing the loss of the boost circuit components while increasing the DC bus voltage. utilization rate.
  • an embodiment of the present disclosure provides another method for controlling a compressor, including:
  • the air conditioner obtains the peak phase voltage of the compressor.
  • the air conditioner determines the first DC bus voltage based on the phase voltage peak value.
  • the air conditioner obtains AC input voltage.
  • the air conditioner determines the average AC input voltage based on the AC input voltage.
  • the air conditioner determines the peak value of the AC input voltage based on the average value of the AC input voltage.
  • the air conditioner determines the second DC bus voltage based on the peak value of the AC input voltage.
  • the air conditioner determines the target DC bus voltage based on the first DC bus voltage and the second DC bus voltage.
  • the average value of the AC input voltage is determined according to the AC input voltage, and then the peak value of the AC input voltage is determined.
  • the second DC bus voltage is determined as the target DC bus voltage to be determined. Since the determination of the second DC bus voltage is based on the AC input voltage, when the AC input voltage changes, the second DC bus voltage can change accordingly. Since the second DC bus voltage changes with the AC input voltage, it is avoided that the DC bus voltage does not reach the target value and affects the operation of the compressor, and at the same time, the utilization rate of the DC bus voltage is improved.
  • step S230 For obtaining the AC input voltage of the air conditioner in step S230, in order to sample the AC input voltage of the rectifier circuit, obtain the AC input voltage sampling value.
  • the air conditioner in step S241 determines the AC input voltage average value based on the AC input voltage, including: the air conditioner low-pass filters the AC input voltage sampling value, and then determines the AC input voltage average value through an integral average operation. Or, the air conditioner detects the AC input voltage peak multiple times in each cycle. After the air conditioner performs low-pass filtering on multiple AC input voltage peaks, it determines the average AC input voltage through calculation. In this way, the sampled value or peak value of the AC input voltage is low-pass filtered, making the determined voltage average more stable and reducing temporary fluctuations. Due to the low-pass filtering of multiple AC input voltage peaks, the accuracy of determining the average value of the AC input voltage is improved, thereby improving the utilization of the DC bus voltage.
  • the AC input voltage peak value is determined based on the AC input voltage average value, and the product of the AC input voltage average value and the conversion coefficient is determined as the AC input voltage peak value by the air conditioner.
  • the conversion factor is usually 1.57.
  • the air conditioner in step S243 determines the second DC bus voltage according to the peak value of the AC input voltage, including: the air conditioner obtains a voltage boost coefficient.
  • the air conditioner determines the product of the AC input voltage peak value and the boost coefficient as the second DC bus voltage.
  • the value range of the boost coefficient is [1.1, 2.1].
  • the value of the boost coefficient is 1.3, 1.6 or 1.9.
  • the second DC bus voltage can be calculated through the peak value of the AC input voltage and the boost coefficient. Since the second DC bus voltage changes with the peak value of the AC input voltage, excessively low DC bus voltage is prevented from affecting the operation of the compressor.
  • the boost coefficient is within the above value range, the output voltage of the boost circuit is stable and can ensure that the boost circuit is in a fully modulated state, allowing the compressor to operate reliably.
  • the voltage boost coefficient can also be determined by the following method: the air conditioner obtains the current field weakening current of the compressor.
  • the air conditioner determines the current difference between the current field weakening current and the target field weakening current.
  • the air conditioner uses the output value of the current difference through proportional and integral control as the boost coefficient correction value.
  • the air conditioner determines the sum of the basic value of the boost coefficient and the correction value of the boost coefficient as the boost coefficient.
  • the basic value of the boost coefficient is a preset value.
  • the base value of the boost coefficient may be 1.1.
  • the voltage boost coefficient is determined based on the current field weakening current of the compressor.
  • the second DC bus voltage can change accordingly. Since the second DC bus voltage changes with the AC input voltage and field weakening current, it avoids the DC bus voltage not reaching the target value and affects the operation of the compressor, and at the same time improves the utilization rate of the DC bus voltage.
  • an embodiment of the present disclosure provides another method for controlling a compressor, including:
  • the air conditioner obtains the peak phase voltage of the compressor.
  • the air conditioner determines the first DC bus voltage based on the phase voltage peak value.
  • the air conditioner obtains AC input voltage.
  • the air conditioner determines the second DC bus voltage based on the AC input voltage.
  • the air conditioner determines the relationship between the first DC bus voltage and the second DC bus voltage.
  • step S252 When the first DC bus voltage is less than the second DC bus voltage, the air conditioner determines that the target DC bus voltage is the second DC bus voltage, and executes step S254.
  • the air conditioner determines the relationship between the target DC bus voltage and the DC bus voltage limiting value.
  • step S255 when the target DC bus voltage is greater than the DC bus voltage limiter value, the air conditioner adjusts the target DC bus voltage to the DC bus voltage limiter value, and executes step S260.
  • the air conditioner keeps the target DC bus voltage unchanged.
  • the air conditioner controls the boost circuit according to the target DC bus voltage.
  • the best DC bus voltage is selected through comparison. bus voltage.
  • the minimum value of the target DC bus voltage is limited to the second DC bus voltage to prevent the DC bus voltage from being too low and affecting the normal operation of the compressor.
  • the target DC bus voltage is selected as the first DC bus voltage to improve the utilization of the DC bus voltage.
  • the target DC bus voltage is too high, limit the target DC bus voltage within the DC bus voltage limit value to avoid damaging the devices in the boost circuit and inverter circuit.
  • the target DC bus voltage By limiting the target DC bus voltage to between the second DC bus voltage and the DC bus voltage limiting value, the normal operation of the compressor is ensured while damage to circuit components is prevented, and the utilization of the DC bus voltage is improved. For example, if the AC input voltage peak is 170V and the voltage boost factor is 2.1, then the second DC bus voltage is 357V. If the target DC bus voltage is 380V, it cannot be achieved only by the second DC bus voltage. After adding the first DC bus voltage, when the first DC bus voltage (for example, 375V) is greater than or equal to the second DC bus voltage, the target DC bus voltage is the first DC bus voltage. That is, the target DC bus voltage is 375V, which is greater than 357V and closer to the target DC bus voltage of 380V.
  • an embodiment of the present disclosure provides a device for controlling a compressor, including a processor (processor) 41 and a memory (memory) 42.
  • the device may also include a communication interface (Communication Interface) 43 and a bus 44.
  • the processor 41, the communication interface 43, and the memory 42 can communicate with each other through the bus 44.
  • the communication interface 43 can be used for information transmission.
  • the processor 41 may call logical instructions in the memory 42 to execute the method for controlling the compressor of the above embodiment.
  • the above-mentioned logical instructions in the memory 42 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 42 can be used to store software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 41 executes program instructions/modules stored in the memory 42 to execute functional applications and data processing, that is, to implement the method for controlling the compressor in the above embodiment.
  • the memory 42 may include a program storage area and a data storage area, where the program storage area may store an operating system and an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, etc.
  • the memory 42 may include high-speed random access memory, and may also include non-volatile memory.
  • An embodiment of the present disclosure provides an air conditioner, including the above device for controlling a compressor.
  • An embodiment of the present disclosure provides a computer program that, when executed by a computer, causes the computer to implement the above method for controlling a compressor.
  • Embodiments of the present disclosure provide a computer program product.
  • the computer program product includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer is caused to implement the above-mentioned control of compression. machine method.
  • An embodiment of the present disclosure provides a storage medium storing computer-executable instructions configured to execute the above method for controlling a compressor.
  • the above-mentioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.
  • the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure.
  • the aforementioned storage media can be non-transitory storage media, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.
  • the term “and/or” as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed items.
  • the term “comprise” and its variations “comprises” and/or “comprising” etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element defined by the statement “comprises a" does not exclude the presence of additional identical elements in a process, method or apparatus including the stated element.
  • each embodiment may focus on its differences from other embodiments, and the same and similar parts among various embodiments may be referred to each other.
  • the relevant parts can be referred to the description of the method part.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units may only be a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined. Either it can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more components for implementing the specified logical function(s).
  • Executable instructions may be included in the block.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two consecutive blocks may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved.

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Abstract

本申请涉及智能家电技术领域，公开一种用于控制压缩机的方法，压缩机的驱动电路包括：整流电路，用于对交流输入电压进行整流；升压电路，输入侧与整流电路连接，输出侧与直流母线连接，用于对整流电路的输出电压进行升压；所述方法包括：获得压缩机的相电压峰值；根据相电压峰值，确定第一直流母线电压；获得交流输入电压；根据交流输入电压，确定第二直流母线电压；根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。由于目标直流母线电压的确定分别依据压缩机的相电压峰值和交流输入电压，提高了直流母线电压的利用率。本申请还公开一种用于控制压缩机的装置、空调器和存储介质。

Description

用于控制压缩机的方法及装置、空调器、存储介质
本申请基于申请号为202210427730.4、申请日为2022年4月22日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及智能家电技术领域，例如涉及一种用于控制压缩机的方法及装置、空调器、存储介质。
背景技术
目前，空调器通过压缩机的运行，实现冷媒在管路中的流动。通过驱动电路对压缩机的控制，实现压缩机在不同工况下的运行。
相关技术中的用于控制压缩机的方法包括：获取压缩机的负载参数以及电源电压；根据负载参数计算功率因数校正(PFC，Power Factor Correction)升压电路的升压系数；根据升压系数以及电源电压计算得到驱动电路的直流参考电压；将直流参考电压作为目标值对功率因数校正升压电路进行反馈控制，以调整直流母线电压。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
该方法能够对压缩机进行控制，通过对直流母线电压进行调整，降低升压电路中器件的损耗。但是，升压系数依据压缩机的负载参数确定，直流参考电压依据升压系数和电源电压确定。当电源电压的输出值较小时，计算得到的直流参考电压小达不到目标值，使得直流母线电压的利用率低。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种用于控制压缩机的方法及装置、空调器、存储介质，以提高直流母线电压的利用率。
在一些实施例中，所述压缩机的驱动电路包括：整流电路，用于对交流输入电压进行整流；升压电路，输入侧与整流电路连接，输出侧与直流母线连接，用于对整流电路的输 出电压进行升压；所述方法包括：获得压缩机的相电压峰值；根据相电压峰值，确定第一直流母线电压；获得交流输入电压；根据交流输入电压，确定第二直流母线电压；根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
可选地，根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压，包括：确定第一直流母线电压与第二直流母线电压之间的关系；在第一直流母线电压小于第二直流母线电压的情况下，确定目标直流母线电压为第二直流母线电压；在第一直流母线电压大于或等于第二直流母线电压的情况下，确定目标直流母线电压为第一直流母线电压。
可选地，根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压，还包括：确定目标直流母线电压与直流母线电压限幅值之间的关系；在目标直流母线电压大于直流母线电压限幅值的情况下，将目标直流母线电压调整为直流母线电压限幅值；在目标直流母线电压小于或等于直流母线电压限幅值的情况下，保持目标直流母线电压不变。
可选地，根据相电压峰值，确定第一直流母线电压，包括：获得直流母线电压目标利用率；将相电压峰值与直流母线电压目标利用率的比值，确定为第一直流母线电压。
可选地，根据交流输入电压，确定第二直流母线电压，包括：根据交流输入电压，确定交流输入电压平均值；根据交流输入电压平均值，确定交流输入电压峰值；根据交流输入电压峰值，确定第二直流母线电压。
可选地，根据交流输入电压峰值，确定第二直流母线电压，包括：获得升压系数；将交流输入电压峰值与升压系数的乘积，确定为第二直流母线电压。
可选地，获得压缩机的相电压峰值，包括：获得压缩机的直轴电流和交轴电流；根据直轴电流和交轴电流，确定压缩机的直轴电压和交轴电压；根据直轴电压和交轴电压，确定压缩机的相电压峰值。
在一些实施例中，所述装置包括处理器和存储有程序指令的存储器，处理器被配置为在运行程序指令时，执行上述用于控制压缩机的方法。
在一些实施例中，所述空调器包括：压缩机；驱动电路，与压缩机连接，用于向压缩机输出驱动信号；和，上述用于控制压缩机的装置；其中，驱动电路包括：整流电路，用于对交流输入电压进行整流；升压电路，输入侧与整流电路连接，输出侧与直流母线连接，用于对整流电路的输出电压进行升压；逆变电路，输入侧与直流母线连接，输出侧与压缩机连接。
在一些实施例中，所述存储介质存储有程序指令，程序指令在运行时，执行上述用于控制压缩机的方法。
本公开实施例提供的用于控制压缩机的方法及装置、空调器、存储介质，可以实现以 下技术效果：
获得压缩机的相电压峰值。根据相电压峰值，确定升压电路的第一直流母线电压，作为待定的目标直流母线电压之一。获得交流输入电压。根据交流输入电压，确定升压电路的第二直流母线电压，作为待定的目标直流母线电压之一。根据升压电路的第一直流母线电压和第二直流母线电压，确定目标直流母线电压，作为升压电路预期的输出电压。由于目标直流母线电压的确定分别依据压缩机的相电压峰值和交流输入电压，通过将最佳的直流母线电压确定为目标直流母线电压，使目标直流母线电压达到目标值以提高直流母线电压的利用率。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一个空调器的结构示意图；
图2是本公开实施例提供的一个用于控制压缩机的方法的控制流程图；
图3是本公开实施例提供的一个用于控制压缩机的方法的示意图；
图4是本公开实施例提供的另一个用于控制压缩机的方法的示意图；
图5是本公开实施例提供的另一个用于控制压缩机的方法的示意图；
图6是本公开实施例提供的另一个用于控制压缩机的方法的示意图；
图7是本公开实施例提供的另一个用于控制压缩机的方法的示意图；
图8是本公开实施例提供的一个用于控制压缩机的装置的示意图。
附图标记：
11：压缩机；12：驱动电路；13：控制电路；121：整流电路；122：升压电路；123：逆变电路；41：处理器；42：存储器；43：通信接口；44：总线。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充分理解。然而，在没有这些细节的情况下，一个或多个实施例仍然可以实施。在其它情况下，为简 化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开实施例的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
除非另有说明，术语“多个”表示两个或两个以上。
本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
术语“对应”可以指的是一种关联关系或绑定关系，A与B相对应指的是A与B之间是一种关联关系或绑定关系。
结合图1所示，本公开实施例提供一种空调器，包括压缩机11和驱动电路12。驱动电路12与压缩机11连接，用于向压缩机11输出驱动信号。驱动电路12包括整流电路121、升压电路122和逆变电路123。整流电路121的输入侧与交流输入电源连接，用于对交流输入电压进行整流。升压电路122的输入侧与整流电路121的输出侧连接，输出侧与直流母线连接，用于对整流电路121的输出电压进行升压。除用于升压外，升压电路122还用于功率因数校正，提高电能的利用率。逆变电路123的输入侧与直流母线连接，输出侧与压缩机11连接，用于将直流母线电压转换成频率可调的交流电压。对于整流电路121、升压电路122和逆变电路123的电路结构，为现有技术中的拓扑结构，此处不做赘述。
可选地，空调器还包括控制电路13。控制电路13与压缩机11和驱动电路12连接，用于根据压缩机11的相电压峰值，对驱动电路12进行控制。
结合图2所示，本公开实施例提供一种用于控制压缩机的方法的控制流程图。该图示出了控制过程中的信息流，最终输出升压电路的目标直流母线电压。该目标直流母线电压可以动态跟随压缩机的相电压峰值和交流输入电压的变化，降低驱动电路中器件的损耗，并提高直流母线电压的利用率。其中，U pp为压缩机的相电压峰值，η为直流母线电压目标利用率，U dc1为第一直流母线电压，U ac为交流输入电压采样值，U aca为交流输入电压平均值，α为转换系数，U acp为交流输入电压峰值，R为升压系数，U dc2为第二直流母线电压，U dcm为直流母线电压限幅值，U dct为目标直流母线电压。
结合图3所示，本公开实施例提供一种用于控制压缩机的方法，包括：
S210，空调器获得压缩机的相电压峰值。
S220，空调器根据相电压峰值，确定第一直流母线电压。
S230，空调器获得交流输入电压。
S240，空调器根据交流输入电压，确定第二直流母线电压。
S250，空调器根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
采用本公开实施例提供的用于控制压缩机的方法，获得压缩机的相电压峰值。根据相电压峰值，确定升压电路的第一直流母线电压，作为待定的目标直流母线电压之一。获得交流输入电压。根据交流输入电压，确定升压电路的第二直流母线电压，作为待定的目标直流母线电压之一。根据升压电路的第一直流母线电压和第二直流母线电压，确定目标直流母线电压，作为升压电路预期的输出电压。由于目标直流母线电压的确定分别依据压缩机的相电压峰值和交流输入电压，通过将最佳的直流母线电压确定为目标直流母线电压，使目标直流母线电压达到目标值以提高直流母线电压的利用率。
结合图4所示，本公开实施例提供另一种用于控制压缩机的方法，包括：
S211，空调器获得压缩机的直轴电流和交轴电流。
S212，空调器根据直轴电流和交轴电流，确定压缩机的直轴电压和交轴电压。
S213，空调器根据直轴电压和交轴电压，确定压缩机的相电压峰值。
S220，空调器根据相电压峰值，确定第一直流母线电压。
S230，空调器获得交流输入电压。
S240，空调器根据交流输入电压，确定第二直流母线电压。
S250，空调器根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
采用本公开实施例提供的用于控制压缩机的方法，由于压缩机的相电压峰值无法直接检测，通过压缩机的直轴电流和交轴电流确定压缩机的直轴电压和交轴电压，进而确定压缩机的相电压峰值。由于相电压峰值的确定依据于直轴电流和交轴电流，相电压峰值的精确度高，使目标直流母线电压易达到目标值以提高直流母线电压的利用率。
对于步骤S211中的空调器获得压缩机的直轴电流和交轴电流，为通过弱磁环节获得直轴(d轴)电流，通过速度环节和最大转矩电流比控制(MTPA，Maximum Torque Per Ampere)获得交轴(q轴)电流。
对于步骤S212中的空调器根据直轴电流和交轴电流，确定压缩机的直轴电压和交轴电压，为空调器将直轴电流和交轴电流进行解耦，获得直轴电压修正值和交轴电压修正值。空调器将直轴电流通过比例积分(PI，Proportion Integration)控制后的输出值与直轴电压修正值的和作为直轴电压，将交轴电流通过比例积分控制后的输出值与交轴电压修正值的和作为交轴电压。
对于步骤S213中的空调器根据直轴电压和交轴电压，确定压缩机的相电压峰值，为 将直轴电压的平方与交轴电压的平方求和后开平方，确定为压缩机的相电压峰值。
结合图5所示，本公开实施例提供另一种用于控制压缩机的方法，包括：
S210，空调器获得压缩机的相电压峰值。
S221，空调器获得直流母线电压目标利用率。
S222，空调器将相电压峰值与直流母线电压目标利用率的比值，确定为第一直流母线电压。
S230，空调器获得交流输入电压。
S240，空调器根据交流输入电压，确定第二直流母线电压。
S250，空调器根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
采用本公开实施例提供的用于控制压缩机的方法，获得直流母线电压目标利用率，作为期望的直流母线电压利用率。将相电压峰值与直流母线电压目标利用率的比值，确定为第一直流母线电压，使待定的目标直流母线电压达到目标值。压缩机的负载越重，相电压峰值越大，第一直流母线电压越大。压缩机的负载越轻，相电压峰值越小，第一直流母线电压越小。由于待定的目标直流母线电压的确定依据于直流母线电压目标利用率，第一直流母线电压随压缩机的负载变化且能够达到目标值，提高了直流母线电压的利用率。
可选地，步骤S221和S222中的直流母线电压目标利用率，为期望的压缩机的相电压峰值与直流母线电压的比值。直流母线电压目标利用率设置的越高，直流母线电压的实际利用率越高，压缩机运行的频率上限越大。步骤S221中的空调器获得直流母线电压目标利用率，为空调器根据不同的调制区域，确定不同的直流母线电压目标利用率。对于空间电压矢量调制(SVPWM，Space Vector Pulse Width Modulation)，在线性调制区域内，直流母线电压目标利用率的最大值通常为0.577。在过调制区域内，直流母线电压目标利用率的最大值通常为0.625。对于调制区域，可以通过压缩机的相电压峰值和直流母线电压进行确定。这样，通过在不同的调制区域选择不同的直流母线电压目标利用率，使直流母线电压能够满足不同运行工况下压缩机的需求，降低了升压电路的器件的损耗的同时提高了直流母线电压的利用率。
结合图6所示，本公开实施例提供另一种用于控制压缩机的方法，包括：
S210，空调器获得压缩机的相电压峰值。
S220，空调器根据相电压峰值，确定第一直流母线电压。
S230，空调器获得交流输入电压。
S241，空调器根据交流输入电压，确定交流输入电压平均值。
S242，空调器根据交流输入电压平均值，确定交流输入电压峰值。
S243，空调器根据交流输入电压峰值，确定第二直流母线电压。
S250，空调器根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
采用本公开实施例提供的用于控制压缩机的方法，根据交流输入电压，确定交流输入电压平均值，进而确定交流输入电压峰值。根据交流输入电压峰值，确定第二直流母线电压，作为待定的目标直流母线电压。由于第二直流母线电压的确定依据于交流输入电压，在交流输入电压发生变化时，第二直流母线电压能够进行相应的变化。由于第二直流母线电压随交流输入电压发生变化，避免直流母线电压达不到目标值影响压缩机的运行，同时提高了直流母线电压的利用率。
对于步骤S230中的空调器获得交流输入电压，为对整流电路的交流输入电压进行采样，获得交流输入电压采样值。
可选地，步骤S241中的空调器根据交流输入电压，确定交流输入电压平均值，包括：空调器将交流输入电压采样值经过低通滤波后，通过积分平均运算确定交流输入电压平均值。或，空调器多次检测每个周期内交流输入电压峰值。空调器对多个交流输入电压峰值进行低通滤波后，通过运算确定交流输入电压平均值。这样，对交流输入电压的采样值或峰值进行低通滤波，使确定的电压平均值更加平稳，减少了暂时的波动。由于对多个交流输入电压峰值进行低通滤波，提高了交流输入电压平均值确定的精确性，从而提高直流母线电压的利用率。
对于步骤S242中的空调器根据交流输入电压平均值，确定交流输入电压峰值，为空调器将交流输入电压平均值与转换系数的乘积，确定为交流输入电压峰值。转换系数的取值通常为1.57。
可选地，步骤S243中的空调器根据交流输入电压峰值，确定第二直流母线电压，包括：空调器获得升压系数。空调器将交流输入电压峰值与升压系数的乘积，确定为第二直流母线电压。升压系数的取值范围为[1.1，2.1]。优选的，升压系数取值为1.3、1.6或1.9。这样，能够通过交流输入电压峰值与升压系数，计算出第二直流母线电压。由于第二直流母线电压随交流输入电压峰值发生变化，避免直流母线电压过低影响压缩机的运行。当升压系数在上述取值范围时，升压电路的输出电压稳定且能够保证升压电路处于全调制状态，使得压缩机能够可靠运行。
可选地，升压系数也可以通过如下方法确定：空调器获得压缩机的当前弱磁电流。空调器确定当前弱磁电流与目标弱磁电流的电流差值。空调器将电流差值通过比例积分控制后的输出值作为升压系数修正值。空调器将升压系数基础值与升压系数修正值的和确定为升压系数。其中，升压系数基础值为预设的值。例如，升压系数基础值可以为1.1。这样， 升压系数的确定依据于压缩机的当前弱磁电流，在交流输入电压和压缩机的弱磁电流发生变化时，第二直流母线电压能够进行相应的变化。由于第二直流母线电压随交流输入电压和弱磁电流发生变化，避免直流母线电压达不到目标值影响压缩机的运行，同时提高了直流母线电压的利用率。
结合图7所示，本公开实施例提供另一种用于控制压缩机的方法，包括：
S210，空调器获得压缩机的相电压峰值。
S220，空调器根据相电压峰值，确定第一直流母线电压。
S230，空调器获得交流输入电压。
S240，空调器根据交流输入电压，确定第二直流母线电压。
S251，空调器确定第一直流母线电压与第二直流母线电压之间的关系。
S252，在第一直流母线电压小于第二直流母线电压的情况下，空调器确定目标直流母线电压为第二直流母线电压，并执行步骤S254。
S253，在第一直流母线电压大于或等于第二直流母线电压的情况下，空调器确定目标直流母线电压为第一直流母线电压。
S254，空调器确定目标直流母线电压与直流母线电压限幅值之间的关系。
S255，在目标直流母线电压大于直流母线电压限幅值的情况下，空调器将目标直流母线电压调整为直流母线电压限幅值，并执行步骤S260。
S256，在目标直流母线电压小于或等于直流母线电压限幅值的情况下，空调器保持目标直流母线电压不变。
S260，空调器根据目标直流母线电压，对升压电路进行控制。
采用本公开实施例提供的用于控制压缩机的方法，在确定了第一直流母线电压和第二直流母线电压这两个待定的目标直流母线电压之后，通过比较的方式选择最佳的直流母线电压。在比较的过程中，将目标直流母线电压的最小值限定在第二直流母线电压，防止直流母线电压过低影响压缩机的正常运行。在满足压缩机正常运行的情况下，将目标直流母线电压选择为第一直流母线电压，以提高直流母线电压的利用率。在目标直流母线电压过高的情况下，将目标直流母线电压限制在直流母线电压限幅值以内，避免损坏升压电路和逆变电路中的器件。通过将目标直流母线电压限制在第二直流母线电压和直流母线电压限幅值之间，保证了压缩机正常运行的同时防止电路器件的损坏，并提高了直流母线电压的利用率。例如，交流输入电压峰值为170V，升压系数为2.1，则第二直流母线电压为357V。若目标直流母线电压为380V，仅通过第二直流母线电压无法实现。而在加入了第一直流母线电压之后，当第一直流母线电压(例如为375V)大于或等于第二直流母线电压时，目标 直流母线电压为第一直流母线电压。即，目标直流母线电压为375V，大于357V，更接近目标直流母线电压380V。
对于步骤S254至S256中的直流母线电压限幅值，依据器件的最大耐压值确定。例如，升压电路和逆变电路之间的稳压电容的最大耐压值为450V，则目标直流母线电压必然要小于450V。考虑到交流输入电压波动和误差，设置有一定的余量，可以将直流母线电压限幅值设置为450V×0.85＝382.5V。
结合图8所示，本公开实施例提供一种用于控制压缩机的装置，包括处理器(processor)41和存储器(memory)42。可选地，该装置还可以包括通信接口(Communication Interface)43和总线44。其中，处理器41、通信接口43、存储器42可以通过总线44完成相互间的通信。通信接口43可以用于信息传输。处理器41可以调用存储器42中的逻辑指令，以执行上述实施例的用于控制压缩机的方法。
此外，上述的存储器42中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器42作为一种存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令/模块。处理器41通过运行存储在存储器42中的程序指令/模块，从而执行功能应用以及数据处理，即实现上述实施例中用于控制压缩机的方法。
存储器42可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器42可以包括高速随机存取存储器，还可以包括非易失性存储器。
本公开实施例提供了一种空调器，包含上述的用于控制压缩机的装置。
本公开实施例提供了一种计算机程序，当所述计算机程序被计算机执行时，使所述计算机实现上述用于控制压缩机的方法。
本公开实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机指令，当所述程序指令被计算机执行时，使所述计算机实现上述用于控制压缩机的方法。
本公开实施例提供了一种存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述用于控制压缩机的方法。
上述的存储介质可以是暂态计算机可读存储介质，也可以是非暂态计算机可读存储介质。
本公开实施例的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服 务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。而且，本申请中使用的用词仅用于描述实施例并且不用于限制权利要求。如在实施例以及权利要求的描述中使用的，除非上下文清楚地表明，否则单数形式的“一个”(a)、“一个”(an)和“所述”(the)旨在同样包括复数形式。类似地，如在本申请中所使用的术语“和/或”是指包含一个或一个以上相关联的列出的任何以及所有可能的组合。另外，当用于本申请中时，术语“包括”(comprise)及其变型“包括”(comprises)和/或包括(comprising)等指陈述的特征、整体、步骤、操作、元素，和/或组件的存在，但不排除一个或一个以上其它特征、整体、步骤、操作、元素、组件和/或这些的分组的存在或添加。在没有更多限制的情况下，由语句“包括一个…”限定的要素，并不排除在包括所述要素的过程、方法或者设备中还存在另外的相同要素。本文中，每个实施例重点说明的可以是与其他实施例的不同之处，各个实施例之间相同相似部分可以互相参见。对于实施例公开的方法、产品等而言，如果其与实施例公开的方法部分相对应，那么相关之处可以参见方法部分的描述。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，可以取决于技术方案的特定应用和设计约束条件。所述技术人员可以对每个特定的应用来使用不同方法以实现所描述的功能，但是这种实现不应认为超出本公开实施例的范围。所述技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元 的间接耦合或通信连接，可以是电性，机械或其它的形式。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例。另外，在本公开实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
附图中的流程图和框图显示了根据本公开实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。在附图中的流程图和框图所对应的描述中，不同的方框所对应的操作或步骤也可以以不同于描述中所披露的顺序发生，有时不同的操作或步骤之间不存在特定的顺序。例如，两个连续的操作或步骤实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。

Claims (12)

  1. 一种用于控制压缩机的方法，压缩机的驱动电路包括：整流电路，用于对交流输入电压进行整流；升压电路，输入侧与整流电路连接，输出侧与直流母线连接，用于对整流电路的输出电压进行升压；其特征在于，所述方法包括：
    获得压缩机的相电压峰值；
    根据相电压峰值，确定第一直流母线电压；
    获得交流输入电压；
    根据交流输入电压，确定第二直流母线电压；
    根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压。
  2. 根据权利要求1所述的方法，其特征在于，根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压，包括：
    确定第一直流母线电压与第二直流母线电压之间的关系；
    在第一直流母线电压小于第二直流母线电压的情况下，确定目标直流母线电压为第二直流母线电压；
    在第一直流母线电压大于或等于第二直流母线电压的情况下，确定目标直流母线电压为第一直流母线电压。
  3. 根据权利要求2所述的方法，其特征在于，根据第一直流母线电压和第二直流母线电压，确定目标直流母线电压，还包括：
    确定目标直流母线电压与直流母线电压限幅值之间的关系；
    在目标直流母线电压大于直流母线电压限幅值的情况下，将目标直流母线电压调整为直流母线电压限幅值；
    在目标直流母线电压小于或等于直流母线电压限幅值的情况下，保持目标直流母线电压不变。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，根据相电压峰值，确定第一直流母线电压，包括：
    获得直流母线电压目标利用率；
    将相电压峰值与直流母线电压目标利用率的比值，确定为第一直流母线电压。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，根据交流输入电压，确定第二直流母线电压，包括：
    根据交流输入电压，确定交流输入电压平均值；
    根据交流输入电压平均值，确定交流输入电压峰值；
    根据交流输入电压峰值，确定第二直流母线电压。
  6. 根据权利要求5所述的方法，其特征在于，根据交流输入电压峰值，确定第二直流母线电压，包括：
    获得升压系数；
    将交流输入电压峰值与升压系数的乘积，确定为第二直流母线电压。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，获得压缩机的相电压峰值，包括：
    获得压缩机的直轴电流和交轴电流；
    根据直轴电流和交轴电流，确定压缩机的直轴电压和交轴电压；
    根据直轴电压和交轴电压，确定压缩机的相电压峰值。
  8. 一种用于控制压缩机的装置，包括处理器和存储有程序指令的存储器，其特征在于，所述处理器被配置为在运行所述程序指令时，执行如权利要求1至7任一项所述的用于控制压缩机的方法。
  9. 一种空调器，其特征在于，包括：
    压缩机(11)；
    驱动电路(12)，与压缩机(11)连接，用于向压缩机(11)输出驱动信号；和，
    如权利要求8所述的用于控制压缩机的装置；
    其中，驱动电路(12)包括：
    整流电路(121)，用于对交流输入电压进行整流；
    升压电路(122)，输入侧与整流电路(121)连接，输出侧与直流母线连接，用于对整流电路(121)的输出电压进行升压；
    逆变电路(123)，输入侧与直流母线连接，输出侧与压缩机(11)连接。
  10. 一种存储介质，存储有程序指令，其特征在于，所述程序指令在运行时，执行如权利要求1至7任一项所述的用于控制压缩机的方法。
  11. 一种计算机程序，当所述计算机程序被计算机执行时，使所述计算机实现如权利要求1至7任一项所述的用于控制压缩机的方法。
  12. 一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机指令，当所述程序指令被计算机执行时，使所述计算机实现如权利要求1至7任一项所述的用于控制压缩机的方法。
PCT/CN2022/133624 2022-04-22 2022-11-23 用于控制压缩机的方法及装置、空调器、存储介质 WO2023202072A1 (zh)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848476A (zh) * 2015-04-28 2015-08-19 广东美的制冷设备有限公司 空调系统的直流母线电压给定的获取方法、装置
CN105610368A (zh) * 2016-01-14 2016-05-25 广东美芝制冷设备有限公司 压缩机的弱磁控制方法和装置及压缩机控制系统
CN107707165A (zh) * 2017-09-30 2018-02-16 广东美的制冷设备有限公司 压缩机的控制方法、压缩机系统及制冷设备
CN108809073A (zh) * 2018-05-31 2018-11-13 奥克斯空调股份有限公司 Apfc电路电压的控制方法、控制系统及空调器
CN110855157A (zh) * 2019-12-02 2020-02-28 四川航电微能源有限公司 一种基于有源整流的飞机地面静变电源直流母线控制方法
CN111628659A (zh) * 2020-06-05 2020-09-04 浙江鲲悟科技有限公司 压缩机变频调速系统及直流母线电压的控制方法
CN111628660A (zh) * 2020-06-05 2020-09-04 浙江鲲悟科技有限公司 压缩机变频调速系统及直流母线电压的控制方法
CN112524854A (zh) * 2020-12-09 2021-03-19 青岛海尔空调器有限总公司 变频空调器中压缩机的控制方法与变频空调器
CN114322227A (zh) * 2021-12-30 2022-04-12 海信（山东）空调有限公司 压缩机的控制方法及装置、家用电器和存储介质

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848476A (zh) * 2015-04-28 2015-08-19 广东美的制冷设备有限公司 空调系统的直流母线电压给定的获取方法、装置
CN105610368A (zh) * 2016-01-14 2016-05-25 广东美芝制冷设备有限公司 压缩机的弱磁控制方法和装置及压缩机控制系统
CN107707165A (zh) * 2017-09-30 2018-02-16 广东美的制冷设备有限公司 压缩机的控制方法、压缩机系统及制冷设备
CN108809073A (zh) * 2018-05-31 2018-11-13 奥克斯空调股份有限公司 Apfc电路电压的控制方法、控制系统及空调器
CN110855157A (zh) * 2019-12-02 2020-02-28 四川航电微能源有限公司 一种基于有源整流的飞机地面静变电源直流母线控制方法
CN111628659A (zh) * 2020-06-05 2020-09-04 浙江鲲悟科技有限公司 压缩机变频调速系统及直流母线电压的控制方法
CN111628660A (zh) * 2020-06-05 2020-09-04 浙江鲲悟科技有限公司 压缩机变频调速系统及直流母线电压的控制方法
CN112524854A (zh) * 2020-12-09 2021-03-19 青岛海尔空调器有限总公司 变频空调器中压缩机的控制方法与变频空调器
CN114322227A (zh) * 2021-12-30 2022-04-12 海信（山东）空调有限公司 压缩机的控制方法及装置、家用电器和存储介质

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