中国电机工程学报2017，Vol.37Issue(18)：5454-5460,7.DOI:10.13334/j.0258-8013.pcsee.162363
考虑Chopper保护的双馈电机短路电流计算
The Calculation of Short-Circuit Current of Double Fed Induction Generators Considering Chopper Protection
摘要
Abstract
The protection of the direct current (DC) dump circuit (Chopper) on DC-links is commonly used as a protection measure for most double fed induction generators (DFIG).The transient process of DFIG considering Chopper protection has an important influence on the short-circuit current.Therefore,based on the double fed wind power system transient process with Chopper protection,the transient equivalent circuit with Chopper protection elements was built,and the variation of the DFIG flux and voltage after Chopper operation was analyzed,a new model to calculate the DFIG's three-phase short-circuit current maximum value and the effective value of the periodic component was proposed.Finally,the effectiveness of the three-phase short-circuit current calculation method proposed in this paper is verified by PSCAD/EMTDC.关键词
双馈风力发电机/三相短路电流/Chopper保护/PSCAD/EMTDCKey words
doubly fed induction generator/three-phase short-circuit current/Chopper protection/PSCAD/EMTDC分类
信息技术与安全科学引用本文复制引用
潘文霞,刘明洋,杨刚,潘学萍,张艺博,郭家圣,杨建军,孙科..考虑Chopper保护的双馈电机短路电流计算[J].中国电机工程学报,2017,37(18):5454-5460,7.基金项目
国家自然科学基金项目(51377047,51190102).Projected Supported by National Natural Science Foundation of China (51377047,51190102). （51377047,51190102）
