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Design of Tie Line Tripping and Load Shedding Scheme for Distribution Microgrid System with Wind Power Generation

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5 Author(s)
C. S. Chen ; Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan ; C. T. Hsu ; Y. J. Lin ; H. J. Chuang
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This paper is to study the enhancement of power system quality for distribution feeders with wind generator (WG) by applying the static synchronous compensator (STATCOM) to provide the voltage support during fault contingency. The critical clearing time for circuit breaker tripping to isolate the fault is derived by considering the low voltage ride through capability of WG and the reactive power compensation by STATCOM system. To restore the stable operation of the microgrid after the fault transient disturbance, an adaptive load shedding scheme is proposed to disconnect proper amount of nonessential loads according to the feeder loading and wind speed to prevent the tripping of WG due to under frequency constraint. A Taipower distribution system has been selected for computer simulation to verify the effectiveness of the proposed strategy of feeder CB tripping and load shedding to improve the power system stability of distribution feeder with wind generator.

Published in:

Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE

Date of Conference:

4-8 Oct. 2009