태양광 전력조절기와 배터리 전하 밸런스 회로를 통합시킨 직렬형 전력변환 시스템Series-connected Power Conversion System Integrating a Photovoltaic Power Conditioner with a Charge-balancing Circuit
- Other Titles
- Series-connected Power Conversion System Integrating a Photovoltaic Power Conditioner with a Charge-balancing Circuit
- Authors
- 이현준; 신종현; 박종후
- Issue Date
- Oct-2015
- Publisher
- 전력전자학회
- Keywords
- Series-connected; Charge-balancing; Cell-balancing; Energy storage; Photovoltaic; Power conditioner
- Citation
- 전력전자학회 논문지, v.20, no.5, pp.389 - 394
- Journal Title
- 전력전자학회 논문지
- Volume
- 20
- Number
- 5
- Start Page
- 389
- End Page
- 394
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/9573
- DOI
- 10.6113/TKPE.2015.20.5.389
- ISSN
- 1229-2214
- Abstract
- 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.
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