电力系统自动化2016,Vol.40Issue(16):8-16,9.DOI:10.7500/AEPS20150610008
计及 GSC 电流和控制策略的 DFIG 稳态故障电流计算模型
Steady Fault Current Calculation Model of Doubly-fed Induction Generator Considering Grid-side Converter Current and Different Control Strategies
摘要
Abstract
The fault current of doubly‐fed induction generator ( DFIG ) is highly complicated when a symmetrical or asymmetrical fault occurs in the grid . Especially , when DFIG s crowbar is not input under nonsevere fault conditions , the fault current of DFIG fed into the grid is rated to its control strategies , the grid s reactive power demand , converters capacity , etc . In order to meet the demand of fault analysis and relaying protection setting for the grid with DFIGs , according to different control strategies of DFIG during the fault , this paper puts forward a novel steady fault current calculation model of DFIG considering grid side converter current and different control strategies . Then , the grid‐side converter current influence on DFIG s fault current is analyzed . Finally , the correctness of the model proposed is verified by digital simulation .关键词
双馈风电机组/网侧变流器/控制策略/故障电流计算模型Key words
doubly-fed induction generator/grid-side converter/control strategies/fault current calculation model引用本文复制引用
陈鹏,张哲,尹项根,肖繁,杨增力,王力军..计及 GSC 电流和控制策略的 DFIG 稳态故障电流计算模型[J].电力系统自动化,2016,40(16):8-16,9.基金项目
国家自然科学基金资助项目(51177058)。 ()