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QIN Yulian,ZHANG Min,DING Xinping,WANG Borong,LI Zongzheng.Influence of Parasitic Resistance on Z-source Inverter with Active Clamp[J].JOURNAL OF POWER SUPPLY,2019,17(1):45-52
Influence of Parasitic Resistance on Z-source Inverter with Active Clamp
Received:November 28, 2016  Revised:May 28, 2018
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DOI:10.13234/j.issn.2095-2805.2019.1.45
Keywords:inverter circuit  parasitic resistance  voltage gain  working efficiency
Fund Project:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan);China Postdoctoral Science Foundation
              
AuthorInstitutionEmail
QIN Yulian College of Automation Engineering, Qingdao University of Technology, Qingdao , China qinyulian1991@163.com
ZHANG Min College of Automation Engineering, Qingdao University of Technology, Qingdao , China
DING Xinping College of Automation Engineering, Qingdao University of Technology, Qingdao , China
WANG Borong College of Electrical Engineering, Zhejiang University, Hangzhou , China
LI Zongzheng College of Automation Engineering, Qingdao University of Technology, Qingdao , China
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Abstract:
      The influence of parasitic-resistance of the main circuit in a high gain Z-source inverter on the performance of the circuit was studied in this paper. A soft-switching trans-Z-source inverter(SSTZSI) with active clamp was taken as an example, and its circuit model was established using the state space averaging method. The expressions of boost ratio and efficiency of inverter DC link were deduced under the influence of parasitic parameters. The relations among inverter voltage gain, working efficiency, and the parasitic resistance of components were analyzed. At a specific power level, through simulation tests and experimental verification, the relation diagram of voltage gain, working efficiency, and parasitic parameters was drawn. It is indicated that the parasitic resistance of the main circuit has an obvious influence on the efficiency of the circuit, especially on the primary side of the inductor ESR. The research in this paper provides a theoretical basis for the design and optimization of inverter circuit.
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