{"title":"A low harmonic double star rectifier with current injection at DC side","authors":"Jingfang Wang, Shiyan Yang, Wei Yang, Yuan Li","doi":"10.1109/PEAC.2014.7037980","DOIUrl":null,"url":null,"abstract":"In order to reduce the harmonics in input currents effectively, this paper presents a double star rectifier with an auxiliary PWM rectifier at DC side. The volt-ampere rating of auxiliary PWM rectifier is only 10% of output power of the double star rectifier. The auxiliary PWM rectifier injects a particular triangular wave current into the secondary winding of inter-phase transformer to reduce the THD of input currents. The resulting system draws near sinusoidal utility line currents with less than 5 % THD. The auxiliary PWM rectifier also extracts the harmonic energy and feeds to the load. Detailed analysis of the proposed scheme is presented, and the results of experiment verify the analysis.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 International Power Electronics and Application Conference and Exposition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PEAC.2014.7037980","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
In order to reduce the harmonics in input currents effectively, this paper presents a double star rectifier with an auxiliary PWM rectifier at DC side. The volt-ampere rating of auxiliary PWM rectifier is only 10% of output power of the double star rectifier. The auxiliary PWM rectifier injects a particular triangular wave current into the secondary winding of inter-phase transformer to reduce the THD of input currents. The resulting system draws near sinusoidal utility line currents with less than 5 % THD. The auxiliary PWM rectifier also extracts the harmonic energy and feeds to the load. Detailed analysis of the proposed scheme is presented, and the results of experiment verify the analysis.
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