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ZHANG Shuai,GUO Yuanbo,ZHANG Xiaohua.Three-phase Four-switch Active Power Filter with LCL-filter Based on Hybrid Repetitive Control[J].JOURNAL OF POWER SUPPLY,2018,16(5):45-52
Three-phase Four-switch Active Power Filter with LCL-filter Based on Hybrid Repetitive Control
Received:July 29, 2016  Revised:July 09, 2018
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DOI:10.13234/j.issn.2095-2805.2018.5.45
Keywords:three-phase four-switch active power filter  reliable operation  hybrid repetitive control  LCL-filter  capacitor current feedback control method
Fund Project:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan);China Postdoctoral Science Foundation
        
AuthorInstitutionEmail
ZHANG Shuai School of Electrical Engineering, Dalian University of Technology, Dalian , China zs_jason@foxmail.com
GUO Yuanbo School of Electrical Engineering, Dalian University of Technology, Dalian , China
ZHANG Xiaohua School of Electrical Engineering, Dalian University of Technology, Dalian , China
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Abstract:
      As a kind of fault-tolerant topology, the three-phase four-switch active power filter(TF-APF) can work und-er fault-tolerant conditions, which effectively suppresses harmonic current. Therefore, the research on TF-APF is of great significance for the reliable operation of power electronic devices and the system. Furthermore, the utilization of LCL-filter can improve the filtering effect for high-frequency harmonics during switching, thus increasing the compensation precision. As a three-order system, the LCL-filter has the phenomenon of resonance peak. Accordingly, acapacitor current feedback control strategy is used to effectively suppress the resonance peak and improve the stability and reliability of the system. To enhance the steady-state and dynamic characteristics of the system when tracking the reference current, a hybrid repetitive control strategy is used to realize the accurate and rapid track of reference current of TF-APF. Simulations are carried out based on Matlab, and results verify the validity and feasibility of the proposed system of TF-APF with LCL-filter based on hybrid repetitive control.
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