Analysis on Low Voltage Ride Through of Doubly Fed Induction Generator with Different Crowbar Control Strategy

doi:10.11930/j.issn.10.11930.2015.11.103

Abstract

Abstract: The crowbar protection circuit is frequently adopted to implement low voltage ride through (LVRT) of the grid-connected doubly fed induction generator(DFIG). In order to effectively evaluate DFIG transient behavior, the stator and rotor short-circuit characteristics after crowbar switched in during a grid fault is analyzed in detail. The range of crowbar resistance is also discussed. The DFIG modal containing crowbar protection circuit is built up in PSCAD/EMTDC. An evaluation index function of dynamic response is presented. The analysis of simulation results reveals optimal crowbar control strategies for LVRT under different grid voltage drop.

Key words: doubly fed induction generator, low voltage ride through, transient characteristics, crowbar circuit, DC voltage circuit

CLC Number:

TM614

WANG Jifei，, LI Peiqiang, LI Xinran, GU Zhen, QIU Shiyan. Analysis on Low Voltage Ride Through of Doubly Fed Induction Generator with Different Crowbar Control Strategy[J]. journal1, 2015, 48(11): 103-109.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.11.103

https://www.electricpower.com.cn/EN/Y2015/V48/I11/103

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