전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제20권5호
  • /
  • Pages.389-394
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  • 2015
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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태양광 전력조절기와 배터리 전하 밸런스 회로를 통합시킨 직렬형 전력변환 시스템

Series-connected Power Conversion System Integrating a Photovoltaic Power Conditioner with a Charge-balancing Circuit

  • Lee, Hyun-Jun (Dept. of Electrical Engineering, Soongsil University) ;
  • Shin, Jong-Hyun (Dept. of Electrical Engineering, Soongsil University) ;
  • Park, Joung-Hu (Dept. of Electrical Engineering, Soongsil University)
  • 투고 : 2014.10.02
  • 심사 : 2014.12.19
  • 발행 : 2015.10.20
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초록

This paper proposes a series-connected power conversion system that integrates a photovoltaic power conditioner and a charge-balancing circuit. In conventional methods, a photovoltaic power conditioner and a cell-balancing circuit are needed for photovoltaic systems with energy storage devices, which results in a complex configuration and high cost. To overcome these problems, a series-connected DC-DC power conditioning system that integrates a photovoltaic power conditioner with a charge-balancing circuit is proposed. During the generation, the system operates as power conditioner only, whereas it operates as a cell balancing circuit during the rest time. For the analysis, the operating principle of the circuit and the controller design are done by PSIM simulation. For verification, a hardware prototype with 48-W photovoltaic modules has been implemented. Results verified that the modularized photovoltaic power conversion system with a series-connected storage successfully works with the proposed method.

키워드

참고문헌

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피인용 문헌

  1. High Efficiency High-Step-up Single-ended DC-DC Converter with Small Output Voltage Ripple vol.15, pp.6, 2015, https://doi.org/10.6113/JPE.2015.15.6.1468