Design and Implementation of Non-Isolated Switched-Capacitor SEPIC Converters Using Duality Principle

Xiu Wei Su, Hsuan Liao, Kai Chieh Peng, Shang Lin Tsai, Jiann Fuh Chen

研究成果: Conference contribution

摘要

If the renewable source is connected to utility, a current source (CS) is required. The conventional converter design is based on a voltage source (VS). A voltage source has a dual relationship with a source, so this paper takes the dual principle as the basis and uses the dual approach to propose converters based on the current source. The duality theory can be used to convert the switched inductor (SI) structure into a switched capacitor (SC) structure, that is convert a step-up voltage topology into a step-up current topology.In this paper, taking the Single Ended Primary Inductive Converter (SEPIC) converter as an example, the conventional voltage source SEPIC converter is converted into a current source SEPIC converter, and then the capacitor is replaced by a step-down switched capacitor structure to form a current source switched capacitor (CSSC) converter. The input current of the proposed topology is Iin=1 A~5 A, and the switching frequency is 100 kHz. Maximum output current Io is 15 A, and the output power is 1125 W. The efficiency can be at least 90.62 %.

原文English
主出版物標題2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350331592
DOIs
出版狀態Published - 2022
事件7th IEEE Workshop on the Electronic Grid, eGRID 2022 - Auckland, New Zealand
持續時間: 2022 11月 292022 12月 2

出版系列

名字2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022

Conference

Conference7th IEEE Workshop on the Electronic Grid, eGRID 2022
國家/地區New Zealand
城市Auckland
期間22-11-2922-12-02

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 電氣與電子工程
  • 安全、風險、可靠性和品質
  • 控制和優化

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