Jian Yang, Jingtao Xu, Peng Yang, Hui Wang, M. Su, Mengtian Shen
{"title":"An improved HERIC inverter with zero-current-switching","authors":"Jian Yang, Jingtao Xu, Peng Yang, Hui Wang, M. Su, Mengtian Shen","doi":"10.1109/EPEC.2017.8286198","DOIUrl":null,"url":null,"abstract":"In this paper, an improved HERIC inverter is proposed. It makes most switching devices operate at zero-current-switching state, by only adding auxiliary inductors on the freewheeling branch. Meanwhile, the dead-time is not required and the modulation of the system is simplified. First, the structure and operation principle of the proposed inverter is presented in detail. The common mode voltage keeps constant during the whole operation so it can reduce the leakage current. Then the main losses of system are analyzed. Compared to the conventional HERIC inverter, the switching losses and the diode reverse recovery losses are greatly reduced. Finally, the simulation results prove the correctness and feasibility of the proposed topology.","PeriodicalId":141250,"journal":{"name":"2017 IEEE Electrical Power and Energy Conference (EPEC)","volume":"67 4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE Electrical Power and Energy Conference (EPEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EPEC.2017.8286198","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, an improved HERIC inverter is proposed. It makes most switching devices operate at zero-current-switching state, by only adding auxiliary inductors on the freewheeling branch. Meanwhile, the dead-time is not required and the modulation of the system is simplified. First, the structure and operation principle of the proposed inverter is presented in detail. The common mode voltage keeps constant during the whole operation so it can reduce the leakage current. Then the main losses of system are analyzed. Compared to the conventional HERIC inverter, the switching losses and the diode reverse recovery losses are greatly reduced. Finally, the simulation results prove the correctness and feasibility of the proposed topology.
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