{"title":"Grid impedance identification by current harmonics signal injection","authors":"J. Talla, V. Blahnik, T. Kosan","doi":"10.1109/ELEKTRO.2016.7512103","DOIUrl":null,"url":null,"abstract":"This paper deals with grid impedance identification by current harmonics signal injection. The current signal is generated by the single phase H-bridge converter. The single phase H-bridge converter is connected in parallel to auxiliary winding of the Petersen coil. The voltage responses of converter for specific current harmonics are used for grid resonant frequency identification. This information is used as feedback for proper tuning of Petersen coil. Meanwhile the two harmonics current generation method is well known, this paper presents the twelve harmonics method. This solution provides more accurate resonant frequency estimation.","PeriodicalId":369251,"journal":{"name":"2016 ELEKTRO","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 ELEKTRO","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ELEKTRO.2016.7512103","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This paper deals with grid impedance identification by current harmonics signal injection. The current signal is generated by the single phase H-bridge converter. The single phase H-bridge converter is connected in parallel to auxiliary winding of the Petersen coil. The voltage responses of converter for specific current harmonics are used for grid resonant frequency identification. This information is used as feedback for proper tuning of Petersen coil. Meanwhile the two harmonics current generation method is well known, this paper presents the twelve harmonics method. This solution provides more accurate resonant frequency estimation.
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