{"title":"Robust High-Power DC/DC Converter for HVDC Interconnections with Buck/Boost Capabilities","authors":"Yujie Zhang, Binbin Li, Shuxin Zhang, Xiaodong Zhao, Dianguo Xu","doi":"10.1109/HVDC50696.2020.9292745","DOIUrl":null,"url":null,"abstract":"In order to realize the acceptance and delivery of large-scale renewable energy, many countries have begun to construct multiple DC lines into multi-terminal power transmission or even DC grids. High-voltage and large-capacity DC/DC converters, as key equipment in future DC grids, have become a hot spot at home and abroad in recent years. This paper proposes a robust high-power DC/DC converter topology by organically combining the thyristors and the sub-modules, which has the advantages of low cost, high efficiency and buck/boost capability. Validity and effectiveness of the TSDC are verified by 150MW, 200kV/300kV simulation case study as well as the experimental tests from a 4.5kW, 300V/450V scaled down prototype.","PeriodicalId":298807,"journal":{"name":"2020 4th International Conference on HVDC (HVDC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 4th International Conference on HVDC (HVDC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HVDC50696.2020.9292745","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In order to realize the acceptance and delivery of large-scale renewable energy, many countries have begun to construct multiple DC lines into multi-terminal power transmission or even DC grids. High-voltage and large-capacity DC/DC converters, as key equipment in future DC grids, have become a hot spot at home and abroad in recent years. This paper proposes a robust high-power DC/DC converter topology by organically combining the thyristors and the sub-modules, which has the advantages of low cost, high efficiency and buck/boost capability. Validity and effectiveness of the TSDC are verified by 150MW, 200kV/300kV simulation case study as well as the experimental tests from a 4.5kW, 300V/450V scaled down prototype.
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