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Design of 1kW Hybrid CC/CV PCS

정전류·정전압 기능의 1kW급 하이브리드 PCS 설계

  • 이재민 (관동대학교 전자정보통신공학부)
  • Received : 2013.11.11
  • Accepted : 2013.12.25
  • Published : 2013.12.31
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Abstract

Lack of proper amount of sun lights and wind strength which are major factors of solar power and wind power system may cause poor electric power generation and decrease the lifetime of batteries that are major energy saving units. Because the PCS, which is essential in solar and wind power system, for small power generation system has been rarely developed an efficient and stable PCS for small power generation system is highly required. In this paper, we design a new constant current/constant voltage type hybrid PCS by which stand alone/grid connected operation with commercial power system is available and implement the designed PCS as a protype for performance verification.

태양광 풍력 하이브리드(Hybrid) 발전 시스템에서는 발전의 주 인자인 태양의 일조량과 바람의 세기 등이 환경적 요인으로 적절하지 못할 경우 충방전 성능의 한계를 가지고 있는 에너지 저장장치인 배터리를 충전하는데 어려움이 발생한다. PCS(power conditioning system)는 태양광 풍력 발전 시스템 운용에 필수적인데 기존의 대부분의 PCS는 중대형 중심이어서 소형 발전에 적합하지 않아 효율이 높고 안정적인 동작을 하는 소형 발전용 PCS 개발이 절실히 요구된다. 본 논문에서는 이러한 문제들을 해결하면서 상용(한전)전력과의 계통연계 및 독립 운영이 가능하고 배터리의 장수명화와 안정화가 가능한 1kW급 하이브리드 CC/CV(constant current/constant voltage)기능을 갖는 PCS를 설계하고 시제품으로 구현하여 그 성능을 검증한다.

Keywords

References

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