WO2021184626A1 - 一种功率因数校正的控制方法、装置、设备及存储介质 - Google Patents

一种功率因数校正的控制方法、装置、设备及存储介质 Download PDF

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Publication number
WO2021184626A1
WO2021184626A1 PCT/CN2020/103693 CN2020103693W WO2021184626A1 WO 2021184626 A1 WO2021184626 A1 WO 2021184626A1 CN 2020103693 W CN2020103693 W CN 2020103693W WO 2021184626 A1 WO2021184626 A1 WO 2021184626A1
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Prior art keywords
reference value
value
voltage
current reference
control
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English (en)
French (fr)
Inventor
何承叡
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Suzhou Wave Intelligent Technology Co Ltd
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Suzhou Wave Intelligent Technology Co Ltd
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Priority to US17/790,862 priority Critical patent/US11817776B2/en
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    • 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
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
    • 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
    • H02M1/14—Arrangements for reducing ripples from DC input or output
    • H02M1/143—Arrangements for reducing ripples from DC input or output using compensating arrangements
    • 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
    • H02M1/14—Arrangements for reducing ripples from DC input or output
    • H02M1/15—Arrangements for reducing ripples from DC input or output using active elements
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the present invention relates to the field of power electronics technology, and in particular to a control method, device, equipment and computer readable storage medium for power factor correction.
  • the power factor correction (PFC) control of the power supply unit is calculated through the voltage loop control and then output to the current loop control calculation, and finally the current loop calculation result is reflected in
  • the switch of the control power factor correction circuit is used to adjust the pulse width (PWM) duty cycle to control the controllable switch (such as a MOS tube) of the power factor correction circuit, so as to achieve the purpose of power factor correction.
  • PWM pulse width
  • the voltage loop controller in the voltage loop compares the output voltage collected from the DC output of the power factor correction (ie, power factor correction circuit) with the voltage reference value , Generate the control error value, and calculate the output result according to the control error value, thereby synthesize the current loop of the current loop with the feedforward loop controller in the voltage loop according to the AC input of the power factor correction to collect the output result calculated by the input voltage
  • the current reference value in the controller, the current loop controller will compare the input current value of the power factor correction, decide to adjust the pulse width duty cycle, and complete the overall control device of the power factor correction. Because the voltage loop of the traditional power factor correction control does not deal with the input frequency part, there will be twice the frequency ripple of the input voltage at the DC output terminal, which greatly affects the stability of the system and reduces the power factor. Corrected control accuracy.
  • the purpose of the present invention is to provide a power factor correction control method, device, equipment and computer readable storage medium to reduce the frequency ripple in the DC output of the power factor correction circuit, improve the stability of the system, and improve the power factor correction The accuracy of control.
  • the present invention provides a power factor correction control method, including:
  • the output voltage value and the preset voltage reference value use the Proney algorithm to obtain the current reference value of the current loop control
  • the current reference value and the input current value are used for current loop control, and a corresponding pulse width modulation signal is output to control the switch tube in the power factor correction circuit to turn on or turn off correspondingly.
  • the obtaining the current reference value of the current loop control by using the Proney algorithm according to the input voltage value, the output voltage value and the preset voltage reference value includes:
  • the original current reference value at the next sampling time at the current sampling time is estimated, and the estimated original current reference value is used as the current reference value.
  • the calculating the angular frequency by using the Proney algorithm according to the original current reference value includes:
  • ⁇ is the angular frequency
  • M is the number of the original current reference value
  • g m is the original current reference value at the sampling time m
  • g (m-1) and g (m+1) The original current reference value at the previous sampling time and the next sampling time at the sampling time m respectively
  • g (M) is the original current reference value at the current sampling time
  • Ts is the sampling period.
  • the performing voltage loop control according to the input voltage value, the output voltage value, and the preset voltage reference value to obtain the original current reference value includes:
  • the original current reference value is generated.
  • the present invention also provides a power factor correction control device, including:
  • the obtaining module is used to obtain the input voltage value, input current value and output voltage value of the power factor correction circuit
  • An estimation module configured to obtain the current reference value of the current loop control by using the Proney algorithm according to the input voltage value, the output voltage value and the preset voltage reference value;
  • the current loop control module is used to perform current loop control using the current reference value and the input current value, and output a corresponding pulse width modulation signal to control the switch tube in the power factor correction circuit to turn on or turn off correspondingly .
  • the current loop control module includes:
  • a voltage loop control sub-module configured to perform voltage loop control using the input voltage value, the output voltage value, and the preset voltage reference value to obtain an original current reference value
  • the Proney calculation sub-module is configured to calculate the angular frequency by using the Proney algorithm according to the original current reference value
  • the estimation sub-module is configured to use the angular frequency and the original current reference value to estimate the original current reference value at the next sampling time of the current sampling time, and use the estimated original current reference value as the current Reference.
  • the Proney calculation sub-module is specifically used for:
  • ⁇ is the angular frequency
  • M is the number of the original current reference value
  • g m is the original current reference value at the sampling time m
  • g (m-1) and g (m+1) The original current reference value at the previous sampling time and the next sampling time at the sampling time m respectively
  • g (M) is the original current reference value at the current sampling time
  • Ts is the sampling period.
  • the voltage loop control sub-module includes:
  • a voltage loop control unit configured to use the output voltage value and the preset voltage reference value to perform voltage loop control to obtain a first control voltage
  • a feedforward loop control unit configured to use the input voltage value to perform feedforward loop control to obtain a second control voltage
  • the PID control unit is configured to generate the original current reference value according to the first control voltage and the second control voltage.
  • the present invention also provides a power factor correction control device, including:
  • Memory used to store computer programs
  • the processor is used to implement the steps of the control method for power factor correction as described above when the computer program is executed.
  • the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the control method for power factor correction as described above is implemented step.
  • the control method for power factor correction includes: obtaining the input voltage value, input current value and output voltage value of the power factor correction circuit; according to the input voltage value, output voltage value and preset voltage reference value, using Proney algorithm obtains the current reference value of the current loop control; uses the current reference value and the input current value for current loop control, and outputs the corresponding pulse width modulation signal to control the switch tube in the power factor correction circuit to turn on or off accordingly; ,
  • the present invention uses the Proney algorithm to obtain the current reference value of the current loop control based on the input voltage value, the output voltage value and the preset voltage reference value, and uses the Proney algorithm to determine the frequency of the input voltage and determine the range of the band-stop filter. Therefore, the calculated current reference value can be used to inject the corresponding compensation amount, reduce the frequency ripple in the DC output of the power factor correction circuit, improve the stability of the system, and improve the control accuracy of the power factor correction.
  • the present invention also provides a power factor correction control device, equipment, and computer-readable storage medium, which also have the above-mentioned beneficial effects.
  • Fig. 1 is a control block diagram of a control method for power factor correction in the prior art
  • FIG. 2 is a flowchart of a control method for power factor correction provided by an embodiment of the present invention
  • FIG. 3 is a flowchart of another power factor correction control method provided by an embodiment of the present invention.
  • FIG. 4 is a control block diagram of another power factor correction control method provided by an embodiment of the present invention.
  • Fig. 5 is a structural block diagram of a power factor correction control device provided by an embodiment of the present invention.
  • FIG. 2 is a flowchart of a control method for power factor correction according to an embodiment of the present invention.
  • the method can include:
  • Step 101 Obtain the input voltage value, input current value, and output voltage value of the power factor correction circuit.
  • the power factor correction circuit in this step may be a circuit for completing the power factor correction function.
  • the specific circuit structure of the power factor correction circuit in this step can be set by the designer according to the use scenario and user needs. For example, it can be implemented in the same or similar manner as the power factor correction circuit in the prior art, such as power factor.
  • the correction circuit may include a rectifier circuit (such as a bridge rectifier) and a power factor correction main circuit, and the power factor correction circuit may also include only a power factor correction main circuit.
  • this embodiment does not impose any limitation on this .
  • the processor (such as a single-chip MCU or digital signal processing DSP) that controls the power factor correction circuit in this step can obtain the circuit parameters required to control the power factor correction circuit, that is, the input voltage value of the power factor correction circuit , Input current value and output voltage value.
  • the input voltage value, input current value, and output voltage value obtained by the processor in this step may correspond to the circuit structure of the power factor correction circuit.
  • the power factor correction circuit includes a rectifier circuit, namely When the AC output from the AC power supply (AC) can be directly converted into DC output by the power factor correction circuit, the input voltage value, input current value and output voltage value in this step can be the AC voltage value and AC current input by the power factor correction circuit
  • the power factor correction circuit does not include the rectifier circuit, that is, when the AC power of the AC power source passes through the rectifier circuit and is input to the power factor correction circuit, the input voltage value, input current value and value in this step
  • the output voltage value may be the DC voltage value output by the rectifier circuit, the DC current value and the DC voltage value output by the power factor correction circuit. This embodiment does not impose any restriction on this.
  • Step 102 According to the input voltage value, the output voltage value and the preset voltage reference value, use the Proney algorithm to obtain the current reference value of the current loop control.
  • this step can be for the processor to add the Prony's method during the process of voltage loop control according to the input voltage value, output voltage value, and preset voltage reference value, and use the Prony algorithm to determine The frequency of the input voltage determines the range of the band-stop filter, so that compared with the traditional voltage loop control to calculate the current reference value of the current loop control, the current reference value calculated in this step can be additionally injected into the power factor correction circuit. The amount of compensation for DC output ripple.
  • the processor uses the Proney algorithm to obtain the specific method of the current reference value controlled by the current loop.
  • the current value at time corresponds to the current value at the next sampling time, that is, the current reference value output to the current loop control; that is, the angular frequency calculated by the Proni algorithm corresponds to the input voltage value and the output voltage value; that is, the current value
  • the steps may include: using the input voltage value, output voltage value and preset voltage
  • the processor can also use the Proney algorithm to estimate the current output time of the voltage loop control and/or feedforward loop control before calculating the current reference value in the same or similar way as the current reference value calculation in the prior art.
  • the control output at the next output moment As shown in Figure 1, when the voltage loop control includes voltage loop control and feedforward loop control, the processor can also use the same or similar method as the voltage loop control and feedforward loop control in the prior art to calculate After outputting the control output of the voltage loop control (the first original control output) and the control output of the feedforward loop control (the second original control output), use the Proney algorithm to calculate the angular frequency corresponding to the first control output (the first Angular frequency) and the angular frequency corresponding to the second control output (second angular frequency), so as to respectively estimate the control output of the voltage loop control and the feedforward loop control at the current output moment and the next output moment (first control output And the second control output).
  • this step may include: using the output voltage value and the preset voltage reference value to perform voltage loop control to obtain the first original control output; according to the first original control output, using the Proney algorithm to calculate the first corner frequency; using The first corner frequency and the first original control output, estimate the first original control output at the next output time at the current output moment, and use the estimated first original control output as the first control output; use the input voltage value to perform Feedforward loop control to obtain the second original control output; according to the second original control output, use the Proney algorithm to calculate the second corner frequency; use the second corner frequency and the second original control output to estimate the next one at the current output moment The second original control output at the time of output, and the estimated second original control output is used as the second control output; according to the first control output and the second control output, the current reference value of the current loop control is calculated; that is, the Proney algorithm The calculated first corner frequency corresponds to the output voltage value, and the second corner frequency calculated by the Proney algorithm corresponds to the input voltage value.
  • Step 103 Use the current reference value and the input current value to perform current loop control, and output a corresponding pulse width modulation signal to control the switch tube in the power factor correction circuit to turn on or turn off correspondingly.
  • the current reference value used in the current loop control in this step includes a compensation amount for reducing the DC output ripple of the power factor correction circuit, that is, the current sampling time used in the current loop control in this step
  • the current reference value is estimated to be the current reference value at the next sampling time of the current loop control in the prior art; therefore, in this step, the processor uses the current reference value and the input current value to perform current loop control, and sends it to the power factor correction circuit.
  • the switch tube in the output of the corresponding pulse width modulation signal when the switch tube is turned on or off to complete the power factor correction, the DC output ripple of the power factor correction circuit can be reduced.
  • the specific method for the processor in this embodiment to use the current reference value and the input current value to perform current loop control and output the corresponding pulse width modulation signal can be set by the designer according to practical scenarios and user needs, such as: It is implemented in the same or similar manner as the current loop control in the prior art.
  • the processor can compare the current reference value with the input current value of the power factor correction circuit through the current loop controller, and calculate and adjust The duty cycle of the PWM signal output to the control end of the switch tube in the power factor correction circuit.
  • the Prony algorithm is used to obtain the current reference value of the current loop control, and the Prony algorithm is used to determine the frequency of the input voltage and determine the frequency of the input voltage.
  • the range of the blocking filter can use the calculated current reference value to inject the corresponding compensation amount, reduce the frequency ripple in the DC output of the power factor correction circuit, improve the stability of the system, and improve the control accuracy of the power factor correction.
  • FIG. 3 is a flowchart of another power factor correction control method provided by an embodiment of the present invention.
  • the method can include:
  • Step 201 Obtain the input voltage value, input current value, and output voltage value of the power factor correction circuit.
  • the power factor correction circuit in this embodiment may include a rectifier circuit; that is, the input voltage value, input current value, and output voltage value in this step may be the AC voltage value, AC current value, and power input by the power factor correction circuit.
  • the value of the DC voltage output by the factor correction circuit may include a rectifier circuit; that is, the input voltage value, input current value, and output voltage value in this step may be the AC voltage value, AC current value, and power input by the power factor correction circuit.
  • Step 202 Use the input voltage value, the output voltage value and the preset voltage reference value to perform voltage loop control to obtain the original current reference value.
  • the processor (such as MCU or DSP) in this step can use the input voltage value, the output voltage value and the preset voltage reference value to perform voltage loop control, thereby calculating the original current reference value, that is, the output in the prior art
  • the current value to the current loop control as shown in Figure 1, the reference current value output to the current loop controller.
  • the processor uses the input voltage value, the output voltage value, and the preset voltage reference value to perform voltage loop control to obtain the original current reference value.
  • the specific method can be the same or the voltage loop control in the prior art.
  • the processor can use the voltage loop controller to determine the DC output voltage value (output voltage value) and voltage reference value (preset voltage). The reference value) is compared to generate the control error value (first control voltage); the AC voltage value (input voltage value) output by the AC power supply (AC) is used through the feedforward loop controller to generate the control voltage value ( The second control voltage); so that the PID controller generates the original current reference value according to the first control voltage and the second control voltage.
  • this step may include: using the output voltage value and the preset voltage reference value to perform voltage loop control to obtain the first control voltage; using the input voltage value to perform feedforward loop control to obtain the second control voltage; A step of generating an original current reference value with a control voltage and a second control voltage.
  • the processor can use the output voltage value and the preset voltage reference value to perform the voltage loop control to obtain the third control voltage; according to the third control voltage and the input voltage value, Generate raw current reference value.
  • Step 203 Calculate the angular frequency using the Proney algorithm according to the original current reference value.
  • this step can be to use the original current reference values obtained at multiple sampling moments to calculate the frequency (ie angular frequency) corresponding to the sampling points at these sampling moments through the Proney algorithm, so as to calculate the calculated angular frequency
  • the corresponding voltage frequency is used as the frequency of the input voltage.
  • this embodiment does not limit the specific selection method of the original current reference value used to calculate the angular frequency in this step.
  • the original current reference value used to calculate the angular frequency may be the original current reference at the current sampling moment. Value and the original current reference value at multiple sampling moments closest to the current sampling time; it may also be the original current reference value at multiple sampling moments before the current sampling time, and this embodiment does not impose any limitation on this.
  • the processor in this step may use the original current reference value at the current sampling time and the original current reference values at the multiple sampling time closest to the current sampling time.
  • ⁇ is the angular frequency
  • M is the number of original current reference values
  • g m is the original current reference value at the sampling time m
  • g (m-1) and g (m+1) respectively
  • g (M) is the original current reference value at the current sampling time
  • Ts is the sampling period
  • f is the voltage frequency, that is, the frequency of the determined input voltage.
  • Step 204 Using the angular frequency and the original current reference value, estimate the original current reference value of the next sampling time at the current sampling time, and use the estimated original current reference value as the current reference value.
  • this step can be for the processor to use the calculated angular frequency and the original current reference value at the current sampling time to estimate the original current reference value at the next sampling time at the current sampling time, and to estimate The obtained original current reference value at the next sampling moment is used as the current reference value that needs to be input to the current loop control.
  • the angular frequency calculated by the algorithm, t is the time difference between the next sampling moment and the current sampling moment, that is, the sampling period.
  • Step 205 Use the current reference value and the input current value to perform current loop control, and output a corresponding pulse width modulation signal to control the switch tube in the power factor correction circuit to turn on or turn off correspondingly.
  • this step is similar to step 103, and will not be repeated here.
  • the embodiment of the present invention uses the angular frequency calculated by the Proney algorithm and the original current reference value at the current sampling time to estimate the original current reference value at the next sampling time at the current sampling time and use it as the current reference value.
  • each calculation of the current reference value only needs to use the Proney algorithm once, reducing the amount of calculation; and using the angular frequency calculated by the Proney algorithm to determine the frequency of the input voltage and determine the range of the band-stop filter, so that the calculation can be used
  • the current reference value is injected into the corresponding compensation amount to reduce the frequency ripple in the DC output of the power factor correction circuit, improve the stability of the power supply, and improve the control accuracy of the power factor correction.
  • FIG. 5 is a structural block diagram of a control device for power factor correction according to an embodiment of the present invention.
  • the device may include:
  • the obtaining module 10 is used to obtain the input voltage value, the input current value and the output voltage value of the power factor correction circuit;
  • the estimation module 20 is used to obtain the current reference value of the current loop control by using the Proney algorithm according to the input voltage value, the output voltage value and the preset voltage reference value;
  • the current loop control module 30 is used to perform current loop control using the current reference value and the input current value, and output a corresponding pulse width modulation signal to control the switch tube in the power factor correction circuit to turn on or turn off correspondingly.
  • the current loop control module 30 may include:
  • the voltage loop control sub-module is used to control the voltage loop by using the input voltage value, the output voltage value and the preset voltage reference value to obtain the original current reference value;
  • the Proney calculation sub-module is used to calculate the angular frequency using the Proney algorithm based on the original current reference value
  • the estimation sub-module is used to estimate the original current reference value of the next sampling time at the current sampling time using the angular frequency and the original current reference value, and use the estimated original current reference value as the current reference value.
  • Proney calculation sub-module specifically used for:
  • ⁇ is the angular frequency
  • M is the number of original current reference values
  • g m is the original current reference value at the sampling time m
  • g (m-1) and g (m+1) are respectively at the sampling time m
  • Ts is the sampling period.
  • the voltage loop control sub-module includes:
  • the voltage loop control unit is configured to perform voltage loop control by using the output voltage value and the preset voltage reference value to obtain the first control voltage;
  • the feedforward loop control unit is used to perform feedforward loop control by using the input voltage value to obtain the second control voltage
  • the PID control unit is used to generate the original current reference value according to the first control voltage and the second control voltage.
  • the embodiment of the present invention uses the Prony algorithm to obtain the current reference value of the current loop control according to the input voltage value, the output voltage value and the preset voltage reference value through the estimation module 20, and uses the Prony algorithm to determine the input voltage value.
  • Frequency determines the range of the band-stop filter, so that the calculated current reference value can be used to inject the corresponding compensation amount, reduce the frequency ripple in the DC output of the power factor correction circuit, improve the stability of the system, and improve the control of the power factor correction Accuracy.
  • An embodiment of the present invention also provides a power factor correction control device, including: a processor and a memory, where the memory is used to store a computer program, and the processor is used to execute the computer program to implement the power factor provided in the above-mentioned embodiment. Correction of the steps of the control method.
  • the memory in this embodiment includes at least one type of readable storage medium.
  • the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), magnetic memory, magnetic disk, CD etc.
  • the memory may be an internal storage unit of the control device for power factor correction in some embodiments.
  • the memory may also be an external storage device of a power factor correction control device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, and a flash memory card. (Flash Card) and so on.
  • the memory may also include both an internal storage unit of the control device for power factor correction and an external storage device.
  • the memory can be used not only to store application software and various data installed in the control device of the power factor correction, such as codes for executing the control method of the power factor correction, etc., but also to temporarily store data that has been output or will be output.
  • the processor in this embodiment may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments, and is used to run the program code stored in the memory Or processing data, such as the code of a program that executes the control method of power factor correction, etc.
  • CPU central processing unit
  • controller microcontroller
  • microprocessor or other data processing chip in some embodiments, and is used to run the program code stored in the memory Or processing data, such as the code of a program that executes the control method of power factor correction, etc.
  • an embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the control method for power factor correction as provided in the above-mentioned embodiment is implemented. A step of.
  • the computer-readable storage medium may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the medium of the program code may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the medium of the program code may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • control method, device, equipment, and computer-readable storage medium for power factor correction provided by the present invention are described in detail above. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

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Abstract

一种功率因数校正的控制方法、装置、设备及计算机可读存储介质，方法包括：获取功率因数校正电路的输入电压值、输入电流值和输出电压值（S101）；根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值（S102）；利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制功率因数校正电路中的开关管对应导通或关断（S103）；所述方法利用普罗尼算法确定输入电压的频率，决定带阻滤波的范围，从而能够利用计算出的电流参考值注入相应的补偿量，降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提升功率因数校正的控制精准度。

Description

一种功率因数校正的控制方法、装置、设备及存储介质
本申请要求于2020年3月20日提交中国专利局、申请号为202010203075.5、发明名称为“一种功率因数校正的控制方法、装置、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电力电子技术领域，特别涉及一种功率因数校正的控制方法、装置、设备及计算机可读存储介质。
背景技术
现有技术中，电源供应器(power supply unit)的功率因数校正(Power Factor Correction，PFC)控制是经由电压环控制计算完之后，输出至电流环控制计算，最后将电流环计算的结果反映在控制功率因数校正电路的开关上，用以调节脉波宽度(Pulse Width Modulation，PWM)占空比来控制功率因数校正电路的可控开关(如MOS管)，从而达到功率因数校正的目的。
如图1所示，传统功率因数校正的双环控制方法，电压环中的电压环路控制器把从功率因数校正(即功率因数校正电路)的直流输出采集的输出电压与电压参考值做比较之后，产生控制误差值，并根据控制误差值计算得到输出结果，从而与电压环中的前馈环路控制器根据功率因数校正的交流输入采集输入电压计算得到的输出结果合成电流环的电流环路控制器中的电流参考值，电流环路控制器会再比较功率因数校正的输入电流值，决定调节脉波宽度占空比，完成功率因数校正的整体控制设备。由于传统的这个功率因数校正控制的电压环中没有针对输入频率的部分做处理，使得在直流输出端会出现输入电压的两倍频率涟波(ripple)，大大影响系统的稳定度，降低功率因数校正的控制精准度。
因此，如何能够降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提高功率因数校正的控制精准度，是现今急需解决的问 题。
发明内容
本发明的目的是提供一种功率因数校正的控制方法、装置、设备及计算机可读存储介质，以降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提升功率因数校正的控制精准度。
为解决上述技术问题，本发明提供一种功率因数校正的控制方法，包括：
获取功率因数校正电路的输入电压值、输入电流值和输出电压值；
根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；
利用所述电流参考值和所述输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制所述功率因数校正电路中的开关管对应导通或关断。
可选的，所述根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值，包括：
利用所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值；
根据所述原始电流参考值，利用所述普罗尼算法计算角频率；
利用所述角频率和所述原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为所述电流参考值。
可选的，所述根据所述原始电流参考值，利用所述普罗尼算法计算角频率，包括：
根据所述原始电流参考值，利用
Figure PCTCN2020103693-appb-000001
计算所述角频率；其中，ω为所述角频率，M为所述原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一 个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期。
可选的，所述根据所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值，包括：
利用所述输出电压值和所述预设电压参考值进行电压环路控制，获取第一控制电压；
利用所述输入电压值进行前馈环路控制，获取第二控制电压；
根据所述第一控制电压和所述第二控制电压，生成所述原始电流参考值。
本发明还提供了一种功率因数校正的控制装置，包括：
获取模块，用于获取功率因数校正电路的输入电压值、输入电流值和输出电压值；
预估模块，用于根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；
电流环控制模块，用于利用所述电流参考值和所述输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制所述功率因数校正电路中的开关管对应导通或关断。
可选的，所述电流环控制模块，包括：
电压环控制子模块，用于利用所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值；
普罗尼计算子模块，用于根据所述原始电流参考值，利用所述普罗尼算法计算角频率；
预估子模块，用于利用所述角频率和所述原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为所述电流参考值。
可选的，所述普罗尼计算子模块，具体用于：
根据所述原始电流参考值，利用
Figure PCTCN2020103693-appb-000002
计 算所述角频率；其中，ω为所述角频率，M为所述原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期。
可选的，所述电压环控制子模块，包括：
电压环路控制单元，用于利用所述输出电压值和所述预设电压参考值进行电压环路控制，获取第一控制电压；
前馈环路控制单元，用于利用所述输入电压值进行前馈环路控制，获取第二控制电压；
PID控制单元，用于根据所述第一控制电压和所述第二控制电压，生成所述原始电流参考值。
本发明还提供了一种功率因数校正的控制设备，包括：
存储器，用于存储计算机程序；
处理器，用于执行所述计算机程序时实现如上述所述的功率因数校正的控制方法的步骤。
此外，本发明还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上述所述的功率因数校正的控制方法的步骤。
本发明所提供的一种功率因数校正的控制方法，包括：获取功率因数校正电路的输入电压值、输入电流值和输出电压值；根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制功率因数校正电路中的开关管对应导通或关断；、
可见，本发明通过根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值，利用普罗尼算法确定输入电压的频率，决定带阻滤波的范围，从而能够利用计算出的电流参考值注入相应的补偿量，降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提升功率因数校正的控制精准度。此外，本发明还提供了 一种功率因数校正的控制装置、设备及计算机可读存储介质，同样具有上述有益效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为现有技术中功率因数校正的控制方法的控制框图；
图2为本发明实施例所提供的一种功率因数校正的控制方法的流程图；
图3为本发明实施例所提供的另一种功率因数校正的控制方法的流程图；
图4为本发明实施例所提供的另一种功率因数校正的控制方法的控制框图；
图5为本发明实施例所提供的一种功率因数校正的控制装置的结构框图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图2，图2为本发明实施例所提供的一种功率因数校正的控制方法的流程图。该方法可以包括：
步骤101：获取功率因数校正电路的输入电压值、输入电流值和输出电压值。
其中，本步骤中的功率因数校正电路，可以为用于完成功率因数校正功能的电路。对于本步骤中的功率因数校正电路的具体电路结构，可以由 设计人员根据使用场景和用户需求自行设置，如可以采用与现有技术中的功率因数校正电路相同或相似的方式实现，例如功率因数校正电路可以包括整流电路(如桥式整流器)和功率因数校正主电路，功率因数校正电路也可以仅包括功率因数校正主电路。只要功率因数校正电路中的开关管(如MOS管)可以根据控制端接收的PWM(脉冲宽度调制)信号对应导通或关断，从而实现功率因数校正功能，本实施例对此不做任何限制。
可以理解的是，本步骤中对功率因数校正电路进行控制的处理器(如单片机MCU或数字信号处理DSP)可以获取控制功率因数校正电路所需的电路参数，即功率因数校正电路的输入电压值、输入电流值和输出电压值。
对应的，对于本步骤中处理器获取的输入电压值、输入电流值和输出电压值，可以与功率因数校正电路的电路结构相对应，如图1所示，功率因数校正电路包括整流电路，即交流电源(AC)输出的交流电可以直接通过功率因数校正电路转换成直流输出时，本步骤中的输入电压值、输入电流值和输出电压值可以为功率因数校正电路输入的交流电压值、交流电流值和功率因数校正电路输出的直流电压值；功率因数校正电路不包括整流电路，即交流电源的交流电通过整流电路后输入到功率因数校正电路时，本步骤中的输入电压值、输入电流值和输出电压值可以为整流电路输出的直流电压值、直流电流值和功率因数校正电路输出的直流电压值。本实施例对此不做任何限制。
步骤102：根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值。
可以理解的是，本步骤的目的可以为处理器在根据输入电压值、输出电压值和预设电压参考值进行电压环控制的过程中，加入普罗尼算法(Prony’s method)，利用普罗尼算法确定输入电压的频率，决定带阻滤波的范围，使得相较于传统电压环控制计算出电流环控制的电流参考值，本步骤中计算出的电流参考值能够额外注入用于降低功率因数校正电路的直流输出涟波的补偿量。
具体的，对于本步骤中处理器根据输入电压值、输出电压值和预设电 压参考值，利用普罗尼算法获取电流环控制的电流参考值的具体方式，可以由设计人员根据使用场景和用户需求自行设置，如处理器可以在采用与现有技术中电压环控制相同或相似的方式，利用输入电压值、输出电压值和预设电压参考值计算出当前采样时刻的电流值(原始电流参考值)后，根据计算出多个采样时刻的电流值，利用普罗尼算法计算输入电压的频率(f)对应的角频率(ω)，即ω＝2πf，从而利用计算出的角频率，计算当前采样时刻的电流值对应的下一个采样时刻的电流值，即输出到电流环控制的电流参考值；即普罗尼算法计算出的角频率与输入电压值和输出电压值相对应；也就是说，本步骤可以包括：利用输入电压值、输出电压值和预设电压参考值进行电压环控制，获取原始电流参考值；根据原始电流参考值，利用普罗尼算法计算角频率；利用角频率和原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为电流参考值。
处理器也可以在采用与现有技术中的电流参考值计算相同或相似的方式，计算电流参考值之前，利用普罗尼算法预估电压环路控制和/或前馈环路控制的当前输出时刻的下一个输出时刻的控制输出。如图1所示，电压环控制包括电压环路控制和前馈环路控制时，处理器也可以在采用与现有技术中电压环路控制和前馈环路控制相同或相似的方式，计算出电压环路控制的控制输出(第一原始控制输出)和前馈环路控制的控制输出(第二原始控制输出)后，分别利用普罗尼算法计算第一控制输出对应的角频率(第一角频率)和第二控制输出对应的角频率(第二角频率)，从而分别预估电压环路控制和前馈环路控制在当前输出时刻的下一个输出时刻的控制输出(第一控制输出和第二控制输出)。也就是说，本步骤可以包括：利用输出电压值和预设电压参考值进行电压环路控制，获取第一原始控制输出；根据第一原始控制输出，利用普罗尼算法计算第一角频率；利用第一角频率和第一原始控制输出，预估当前输出时刻的下一个输出时刻的第一原始控制输出，并将预估得到的第一原始控制输出作为第一控制输出；利用输入电压值进行前馈环路控制，获取第二原始控制输出；根据第二原始控制输出，利用普罗尼算法计算第二角频率；利用第二角频率和第二原始控制 输出，预估当前输出时刻的下一个输出时刻的第二原始控制输出，并将预估得到的第二原始控制输出作为第二控制输出；根据第一控制输出和第二控制输出，计算电流环控制的电流参考值；即普罗尼算法计算出的第一角频率与输出电压值相对应，普罗尼算法计算出的第二角频率与输入电压值相对应。
步骤103：利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制功率因数校正电路中的开关管对应导通或关断。
可以理解的是，由于本步骤中电流环控制所使用的电流参考值中包含有用于降低功率因数校正电路的直流输出涟波的补偿量，即本步骤中电流环控制所使用的当前采样时刻的电流参考值为预估的现有技术中电流环控制的下一采样时刻的电流参考值；因此，本步骤中处理器在利用电流参考值和输入电流值进行电流环控制，向功率因数校正电路中的开关管输出对应的脉冲宽度调制信号，使开关管对应导通或关断完成功率因数校正时，能够降低功率因数校正电路的直流输出涟波。
具体的，对于本实施例中处理器利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号的具体方式，可以由设计人员根据实用场景和用户需求自行设置，如可以采用与现有技术中的电流环控制相同或相似的方式实现，如图1和图4所示，处理器可以通过电流环路控制器比较电流参考值和功率因数校正电路的输入电流值，计算调节输出到功率因数校正电路中的开关管的控制端的PWM信号的占空比。
本实施例中，本发明实施例通过根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值，利用普罗尼算法确定输入电压的频率，决定带阻滤波的范围，从而能够利用计算出的电流参考值注入相应的补偿量，降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提升功率因数校正的控制精准度。
请参考图3，图3为本发明实施例所提供的另一种功率因数校正的控制方法的流程图。该方法可以包括：
步骤201：获取功率因数校正电路的输入电压值、输入电流值和输出电压值。
具体的，本实施例中的功率因数校正电路可以包括整流电路；即本步骤中的输入电压值、输入电流值和输出电压值可以为功率因数校正电路输入的交流电压值、交流电流值和功率因数校正电路输出的直流电压值。
步骤202：利用输入电压值、输出电压值和预设电压参考值进行电压环控制，获取原始电流参考值。
可以理解的是，本步骤中处理器(如MCU或DSP)可以利用输入电压值、输出电压值和预设电压参考值进行电压环控制，从而计算出原始电流参考值，即现有技术中输出到电流环控制的电流值，如图1中输出到电流环路控制器的参考电流值。
具体的，对于本步骤中处理器利用输入电压值、输出电压值和预设电压参考值进行电压环控制，获取原始电流参考值的具体方式，可以采用与现有技术中的电压环控制相同或相似的方式实现，如图4所示，电压环控制包括前馈环路控制时，处理器可以通过电压环路控制器对直流输出的电压值(输出电压值)和电压参考值(预设电压参考值)进行比较，产生控制误差值(第一控制电压)；通过前馈环路控制器利用交流电源(AC)输出的交流电压值(输入电压值)产生电压前馈控制的控制电压值(第二控制电压)；从而通过PID控制器根据第一控制电压和第二控制电压，生成原始电流参考值。
也就是说，本步骤可以包括：利用输出电压值和预设电压参考值进行电压环路控制，获取第一控制电压；利用输入电压值进行前馈环路控制，获取第二控制电压；根据第一控制电压和第二控制电压，生成原始电流参考值的步骤。
对应的，电压环控制不包括前馈环路控制时，处理器可以利用输出电压值和预设电压参考值进行电压环路控制，获取第三控制电压；根据第三控制电压和输入电压值，生成原始电流参考值。
步骤203：根据原始电流参考值，利用普罗尼算法计算角频率。
其中，本步骤中计算得到的角频率(ω)可以为输入电压的频率(f) 对应的参数，即ω＝2πf，角频率可以与功率因数校正电路的输入电压值和输出电压值相对应。
可以理解的是，本步骤的目的可以为利用多个采样时刻获取的原始电流参考值，通过普罗尼算法计算这些采样时刻的采样点对应的频率(即角频率)，从而将计算出的角频率对应的电压频率作为输入电压的频率。
对应的，本实施例中并不限定本步骤中计算角频率所需使用的原始电流参考值的具体选取方式，如计算角频率所需使用的原始电流参考值可以为当前采样时刻的原始电流参考值和最接近当前采样时刻的多个采样时刻的原始电流参考值；也可以为当前采样时刻以前的多个采样时刻的原始电流参考值，本实施例对此不做任何限制。
具体的，本步骤处理器可以根据当前采样时刻的原始电流参考值和最接近当前采样时刻的多个采样时刻的原始电流参考值，利用
Figure PCTCN2020103693-appb-000003
计算得到角频率ω；其中，ω为所述角频率，M为原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期；
Figure PCTCN2020103693-appb-000004
f为电压频率，即确定的输入电压的频率。
步骤204：利用角频率和原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为电流参考值。
可以理解的是，本步骤的目的可以为处理器利用计算得到的角频率和当前采样时刻的原始电流参考值，预估计算当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的下一个采样时刻的原始电流参考值作为需要输入到电流环控制的电流参考值。
具体的，本步骤中由于已经计算得到了原始电流参考值的变化对应的频率(即角频率)，因此可以通过I n+1＝I nsin(ωt)利用角频率和当前采样时刻 的原始电流参考值，预估得到下一个采样时刻的原始电流参考值；其中，I n+1为下一个采样时刻的原始电流参考值，I n为当前采样时刻的原始电流参考值，ω为利用普罗尼算法计算得到的角频率，t为下一个采样时刻与当前采样时刻的时间差，即采样周期。
步骤205：利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制功率因数校正电路中的开关管对应导通或关断。
具体的，本步骤与步骤103相似，在此不再赘述。
本实施例中，本发明实施例通过利用普罗尼算法计算出的角频率和当前采样时刻的原始电流参考值，预估得到当前采样时刻的下一个采样时刻的原始电流参考值并作为电流参考值，使得每次电流参考值的计算仅需使用一次普罗尼算法，减少了计算量；并且利用普罗尼算法计算出的角频率确定输入电压的频率，决定带阻滤波的范围，从而能够利用计算出的电流参考值注入相应的补偿量，降低功率因数校正电路的直流输出中的频率涟波，提高电源供应器的稳定性，提升功率因数校正的控制精准度。
请参考图5，图5为本发明实施例所提供的一种功率因数校正的控制装置的结构框图。该装置可以包括：
获取模块10，用于获取功率因数校正电路的输入电压值、输入电流值和输出电压值；
预估模块20，用于根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；
电流环控制模块30，用于利用电流参考值和输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制功率因数校正电路中的开关管对应导通或关断。
可选的，电流环控制模块30，可以包括：
电压环控制子模块，用于利用输入电压值、输出电压值和预设电压参考值进行电压环控制，获取原始电流参考值；
普罗尼计算子模块，用于根据原始电流参考值，利用普罗尼算法计算 角频率；
预估子模块，用于利用角频率和原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为电流参考值。
可选的，普罗尼计算子模块，具体用于：
根据原始电流参考值，利用
Figure PCTCN2020103693-appb-000005
计算角频率；其中，ω为角频率，M为原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期。
可选的，电压环控制子模块，包括：
电压环路控制单元，用于利用输出电压值和预设电压参考值进行电压环路控制，获取第一控制电压；
前馈环路控制单元，用于利用输入电压值进行前馈环路控制，获取第二控制电压；
PID控制单元，用于根据第一控制电压和第二控制电压，生成原始电流参考值。
本实施例中，本发明实施例通过预估模块20根据输入电压值、输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值，利用普罗尼算法确定输入电压的频率，决定带阻滤波的范围，从而能够利用计算出的电流参考值注入相应的补偿量，降低功率因数校正电路的直流输出中的频率涟波，提高系统的稳定性，提升功率因数校正的控制精准度。
本发明实施例还提供了一种功率因数校正的控制设备，包括：处理器和存储器，其中，存储器，用于存储计算机程序，处理器用于执行计算机程序时实现如上述实施例所提供的功率因数校正的控制方法的步骤。
其中，本实施例中的存储器至少包括一种类型的可读存储介质，该可 读存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如，SD或DX存储器等)、磁性存储器、磁盘、光盘等。存储器在一些实施例中可以是功率因数校正的控制设备的内部存储单元。存储器在另一些实施例中也可以是功率因数校正的控制设备的外部存储设备，例如插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digita，SD)卡，闪存卡(Flash Card)等。进一步地，存储器还可以既包括功率因数校正的控制设备的内部存储单元也包括外部存储设备。存储器不仅可以用于存储安装于功率因数校正的控制设备的应用软件及各类数据，例如：执行功率因数校正的控制方法的代码等，还可以用于暂时地存储已经输出或者将要输出的数据。
本实施例中的处理器在一些实施例中可以是中央处理器(Central Processing Unit,CPU)、控制器、微控制器、微处理器或其他数据处理芯片，用于运行存储器中存储的程序代码或处理数据，例如执行功率因数校正的控制方法的程序的代码等。
此外，本发明实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现如上述实施例所提供的功率因数校正的控制方法的步骤。
其中，该计算机可读存储介质可以包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都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互相参见即可。对于实施例公开的装置、设备及计算机可读存储介质而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。
专业人员还可以进一步意识到，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、计算机软件或者二者的结合来 实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
以上对本发明所提供的一种功率因数校正的控制方法、装置、设备及计算机可读存储介质进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种功率因数校正的控制方法，其特征在于，包括：
    获取功率因数校正电路的输入电压值、输入电流值和输出电压值；
    根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；
    利用所述电流参考值和所述输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制所述功率因数校正电路中的开关管对应导通或关断。
  2. 根据权利要求1所述的功率因数校正的控制方法，其特征在于，所述根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值，包括：
    利用所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值；
    根据所述原始电流参考值，利用所述普罗尼算法计算角频率；
    利用所述角频率和所述原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为所述电流参考值。
  3. 根据权利要求2所述的功率因数校正的控制方法，其特征在于，所述根据所述原始电流参考值，利用所述普罗尼算法计算角频率，包括：
    根据所述原始电流参考值，利用
    Figure PCTCN2020103693-appb-100001
    计算所述角频率；其中，ω为所述角频率，M为所述原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期。
  4. 根据权利要求2所述的功率因数校正的控制方法，其特征在于，所述根据所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值，包括：
    利用所述输出电压值和所述预设电压参考值进行电压环路控制，获取第一控制电压；
    利用所述输入电压值进行前馈环路控制，获取第二控制电压；
    根据所述第一控制电压和所述第二控制电压，生成所述原始电流参考值。
  5. 一种功率因数校正的控制装置，其特征在于，包括：
    获取模块，用于获取功率因数校正电路的输入电压值、输入电流值和输出电压值；
    预估模块，用于根据所述输入电压值、所述输出电压值和预设电压参考值，利用普罗尼算法获取电流环控制的电流参考值；
    电流环控制模块，用于利用所述电流参考值和所述输入电流值进行电流环控制，输出对应的脉冲宽度调制信号，以控制所述功率因数校正电路中的开关管对应导通或关断。
  6. 根据权利要求5所述的功率因数校正的控制装置，其特征在于，所述电流环控制模块，包括：
    电压环控制子模块，用于利用所述输入电压值、所述输出电压值和所述预设电压参考值进行电压环控制，获取原始电流参考值；
    普罗尼计算子模块，用于根据所述原始电流参考值，利用所述普罗尼算法计算角频率；
    预估子模块，用于利用所述角频率和所述原始电流参考值，预估当前采样时刻的下一个采样时刻的原始电流参考值，并将预估得到的原始电流参考值作为所述电流参考值。
  7. 根据权利要求6所述的功率因数校正的控制装置，其特征在于，所述普罗尼计算子模块，具体用于：
    根据所述原始电流参考值，利用
    Figure PCTCN2020103693-appb-100002
    计算所述角频率；其中，ω为所述角频率，M为所述原始电流参考值的数量，g m为采样时刻m的原始电流参考值，g (m-1)和g (m+1)分别采样时刻m的上一 个采样时刻和下一个采样时刻的原始电流参考值，g (M)为当前采样时刻的原始电流参考值，Ts为采样周期。
  8. 根据权利要求6所述的功率因数校正的控制装置，其特征在于，所述电压环控制子模块，包括：
    电压环路控制单元，用于利用所述输出电压值和所述预设电压参考值进行电压环路控制，获取第一控制电压；
    前馈环路控制单元，用于利用所述输入电压值进行前馈环路控制，获取第二控制电压；
    PID控制单元，用于根据所述第一控制电压和所述第二控制电压，生成所述原始电流参考值。
  9. 一种功率因数校正的控制设备，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于执行所述计算机程序时实现如权利要求1至4任一项所述的功率因数校正的控制方法的步骤。
  10. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至4任一项所述的功率因数校正的控制方法的步骤。
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