Title:
CONTROL METHOD AND SYSTEM FOR VIENNA RECTIFIER
Document Type and Number:
WIPO Patent Application WO/2023/226317
Kind Code:
A1
Abstract:
The present application discloses a control method and system for a Vienna rectifier. The control method is used for controlling a switching transistor of the Vienna rectifier when direct current is input into the Vienna rectifier. The control method comprises: establishing an equivalent circuit when the direct current is input to the Vienna rectifier; performing closed-loop control by means of an output voltage loop according to an output voltage reference value and an output voltage value of the equivalent circuit to obtain a first control result, performing closed-loop control by means of midpoint potential balancing loop according to an upper capacitor voltage value and a lower capacitor voltage value to obtain a second control result, and obtaining a first modulated wave and a second modulated wave according to the first control result and the second control result; and controlling a switching transistor of the equivalent circuit by means of driving signals according to the results of comparison of the first modulated wave and the second modulated wave with a first carrier wave and a second carrier wave.
Inventors:
ZHANG LIJUN (CN)
ZHAO XUQIANG (CN)
ZHU BOWEI (CN)
LI HAIYANG (CN)
WANG PANRUI (CN)
SHEN ZHUANGZHUANG (CN)
ZHAO XUQIANG (CN)
ZHU BOWEI (CN)
LI HAIYANG (CN)
WANG PANRUI (CN)
SHEN ZHUANGZHUANG (CN)
Application Number:
PCT/CN2022/131671
Publication Date:
November 30, 2023
Filing Date:
November 14, 2022
Export Citation:
Assignee:
CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD (CN)
International Classes:
H02M1/08; H02M3/07
Foreign References:
| CN114884316A | 2022-08-09 | |||
| CN111404221A | 2020-07-10 | |||
| CN106849705A | 2017-06-13 | |||
| US20140104901A1 | 2014-04-17 |
Attorney, Agent or Firm:
QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)
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