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독립형 태양광 발전시스템의 MPPT 제어기법 특성비교

Comparison of MPPT Control Method Characteristic for Stand-alone PV System

  • 이용식 (순천대 공대 정보통신공학부) ;
  • 김남인 (순천대 공대 전기공학과) ;
  • 정성원 (순천대 공대 정보통신공학부) ;
  • 김재현 (순천대 공대 전기제어공학과)
  • 투고 : 2011.09.10
  • 심사 : 2011.11.28
  • 발행 : 2012.01.01

초록

Maximum power point tracking(MPPT) techniques are used in photovoltaic systems to maximize the PV array output power by tracking continuously the maximum power point which depends on panels temperature and on irradiance conditions. This paper proposes a variable step size MPPT algorithm which can improve the MPPT speed and accuracy. Depending on insolation and temperature, the MPPT controller gives optimized step size. The effectiveness of the proposed system is verified thorough PSIM simulation and experiments on a 50[W] prototype. The experimental results confirm that the PV power of the improved P&O method is higher than that of the traditional P&O method.

키워드

참고문헌

  1. 이승환 외 6명, "PWM 쵸퍼와 전류형 인버터를 이용한 계통연계형 태양광발전 시스템", 전력전자논문지 제3권 제4호, 1998.
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  4. 김재현 외 9명, "태양광 LED 조명 분수 시스템 개발", 중소기업청, 2010-2011년 산학연 공도기술개발사업 최종보고서, 2011.06.
  5. 이용식, 김남인, 정성원, 김재현, "독립형 태양광 발전시스템의 MPPT 제어기법 비교", 대한전기학회 제42회 하계학술대회 논문집, pp. 1386-1387, 2011년.
  6. K.H. Hussein, I. Muta, T. Hoshino and M. Osakada, "Maximum Photovoltaic Power Tracking: an Algorithm for Rapidly Changing Atmospheric Conditions", Proc. of IEE generation, Transmission, and Distribution, Vol. 142, No. 1, pp. 59-64, 1995. https://doi.org/10.1049/ip-gtd:19951577
  7. E. Koutroulis, K. Kalairzakis and N.C. Voulgaris, "Development of a Microcontroller-Based, Photovoltaic Maximum Power Point Tracking Control System", IEEE trans, Power Electronics, Vol. 16, pp. 46-54, Jan. 2001. https://doi.org/10.1109/63.903988
  8. E.B, Youssef, P. Stephane, E. Bruno, A. Corinne, "New P&O MPPT algorithm for FPGA implementation", IEEE, Conference IECON 2010-36th, pp. 2868-2873, 2010.

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