Title:
METHOD FOR CONTROLLING INVERTER ON BASIS OF CASCADED REPETITIVE CONTROLLER, AND RELATED DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/262065
Kind Code:
A1
Abstract:
A method and apparatus for controlling an inverter on the basis of a cascaded repetitive controller, an electronic device, and a computer-readable storage medium. The method comprises: acquiring a reference output voltage and the actual output voltage of an inverter so as to calculate the actual deviation between the reference output voltage and the actual output voltage; using a repetitive controller to calculate, on the basis of the actual deviation, a first control signal; summing the first control signal and the actual deviation to obtain a correction deviation; using a PI double closed-loop controller cascaded with the repetitive controller to perform PI control on the basis of the correction deviation so as to calculate a second control signal; and generating, on the basis of the second control signal, a corresponding pulse signal to drive a switch transistor of the inverter in order to adjust the output voltage of the inverter. According to the present application, cascaded control is performed by using a repetitive controller and a PI controller, and the dynamic performance and steady-state performance of the voltage output of an inverter are effectively balanced on the basis of the cascaded repetitive controller; moreover, the parameter design is simple, and system stability is wider, thereby improving the waveform quality of the output voltage.
Inventors:
YANG YONG (CN)
YANG YA (CN)
FAN MINGDI (CN)
HE LIQUN (CN)
XIAO YANG (CN)
XIE MENXI (CN)
CHEN RONG (CN)
YANG YA (CN)
FAN MINGDI (CN)
HE LIQUN (CN)
XIAO YANG (CN)
XIE MENXI (CN)
CHEN RONG (CN)
Application Number:
PCT/CN2021/107605
Publication Date:
December 22, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
H02M7/539
Foreign References:
| CN110880881A | 2020-03-13 | |||
| CN106877399A | 2017-06-20 | |||
| CN104953875A | 2015-09-30 | |||
| CN104410074A | 2015-03-11 | |||
| US9048726B1 | 2015-06-02 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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