{"title":"A practical comparison between the series-stacked and neutral point clamped converters","authors":"G. B. Lee, H. J. Beukes","doi":"10.1109/ISIE.2002.1025852","DOIUrl":null,"url":null,"abstract":"Various multi-level converter topologies have been developed over recent years to address the industry demand for higher power and voltage levels. This paper compares two of these converter topologies, namely a 2-level series-stacked converter, using regular 2-level space vector modulation, and a 3-level neutral point clamped converter, which makes use of 3-level space vector modulation. The space vector switching schemes are analysed and applied to simulation models of the series-stacked and neutral point clamped converters. Focus areas are the control complexity, stray inductances causing over-voltages and the capacitor ratings and performance within each topology. These results are verified practically on a reconfigurable converter operated as a series-stacked or a neutral point clamped converter respectively. The results obtained will assist in the selection of the appropriate topology for a given application.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISIE.2002.1025852","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
Various multi-level converter topologies have been developed over recent years to address the industry demand for higher power and voltage levels. This paper compares two of these converter topologies, namely a 2-level series-stacked converter, using regular 2-level space vector modulation, and a 3-level neutral point clamped converter, which makes use of 3-level space vector modulation. The space vector switching schemes are analysed and applied to simulation models of the series-stacked and neutral point clamped converters. Focus areas are the control complexity, stray inductances causing over-voltages and the capacitor ratings and performance within each topology. These results are verified practically on a reconfigurable converter operated as a series-stacked or a neutral point clamped converter respectively. The results obtained will assist in the selection of the appropriate topology for a given application.
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