리클로져의 동작특성을 고려한 계통연계형 태양광발전시스템의 보호 알고리즘

A Protection Algorithm of Grid-Interactive Photovoltaic System Considering Operation Characteristics of Recloser

  • 발행 : 2006.05.01

초록

The paper proposes a new protection algorithm for reliable operation of grid-interfaced PV system, which can flexibly interact with conventional protective schemes of power utility grid not only to prevent damages to utility or public persons and utility apparatus caused by malfunction or failure in distribution network protection system, but also to protect a PV system itself from faults or abnormal conditions of the network. The proposed algorithm is based on reclosing characteristics of the distribution system. As a network fault occurs, the new scheme determines whether it is momentary or permanent and responds in a pre-programmed way to the fault. For permanent outage, the proposed algorithm shuts down inverter's operations but monitoring system voltage and frequency at the point of common coupling with grid. When it comes to the momentary outage, Inverter starts stand-by operation mode so that it can be automatically connected to the grid without start-up procedures as soon as the system voltage and frequency returns into the normal operation range. In order to investigate' and evaluate the PV system operation, simulation study based on PSCAD/EMTDC has been carried out to verify the performance of the proposed protection scheme.

키워드

참고문헌

  1. Minwon Park and In-Keun Yu, 'A Novel Real-Time Simulation Technique of Photovoltaic Generation Systems Using RTDS', IEEE Trans. on Energy Conversion, Vol. 19, No.1, March 2004 https://doi.org/10.1109/TEC.2003.821837
  2. C. K. Sao, P. W. Lehn, M. R. Iravani, and J. A. Martinez, 'A Benchmark System for Digital Time-Domain Simulation of a Pulse-Width-Modulated D-STATCOM', IEEE Trans. Power Delivery, Vol. 17, No.4, October 2002, pp. 1113-1120 https://doi.org/10.1109/TPWRD.2002.803836
  3. Mohammad A. S. Masoum, Hooman Dehbonei, and Ewald F. Fuchs, 'Theoretical and Explanation Analysis of Photovoltaic Systems With Voltage and Current Based Maximum Power-Point Tracking', IEEE Trans. on Energy Conversion, Vol. 17, No.4, December 2002, pp. 514-522 https://doi.org/10.1109/TEC.2002.805205
  4. L Zhang, A Al-Amoudi, Yunfei Bai, 'Real-time Maximum Power Point Tracking for Grid-Connected Photovoltaic Systems', Power Electronics and Variable Speed Drives, 18-19 September 2000, Conference Publication No. 475
  5. S.K.Kim, E.S.Kim, 'PSCAD/EMTDC를 이용한 계통연계형 태양광발전시스템의 모델링 및 모의해석' 대한전기학회 논문지 54A권 3호, 2005년 3월, pp. 107-116
  6. Luis Castaner and Santiago Silvestre, Modeling Photovoltaic Systems Using PSpice, JOHN WILEY & SONS, LTD, 2002
  7. Mukund R. Patel. Wind and Solar Power Systems. CRC Press, USA, 1999
  8. Manitoba HVDC Research Center, PSCAD/EMTDC Power System Simulation Software User's Manual, 1998