电测与仪表2016，Vol.53Issue(20)：67-74,8.
低电压穿越控制策略下双馈风电机组故障电流特性的研究
The study on the fault current characteristics of doubly fed induction generator with low-voltage ride-through control strategy
孔祥平 1张哲 2袁宇波1
作者信息
- 1. 国网江苏省电力公司电力科学研究院，南京211103
- 2. 华中科技大学强电磁工程与新技术国家重点实验室，武汉430074
- 折叠
摘要
Abstract
Under conditions of non-severe fault , the depth of voltage dip is not very large .With the application of low-voltage ride-through control strategy , the rotor windings of doubly fed induction generator ( DFIG) are still excited by the AC/DC/AC converter.Hence, the fault current characteristics of DFIG under conditions of non-severe fault are decided by the response of the AC/DC/AC converter .Aimed at it , the dynamic response characteristics of rotor-side converter ( RSC) with low-voltage ride-through control strategy are analyzed , and the generalized calculation model of the rotor fault current is obtained .Based on it , the stator fault current characteristics of DFIG in condition of non-se-vere fault are studied .Meanwhile , the unified analytical expressions of the stator fault current are established .Final-ly, the digital simulation examples in PSCAD/EMTDC demonstrate the correctness of the theoretical analysis results .关键词
双馈风电机组/非严重故障/低电压穿越控制策略/故障电流特性Key words
doubly fed induction generator (DFIG)/non-severe fault/low-voltage ride-through control strategy/fault current characteristics分类
信息技术与安全科学引用本文复制引用
孔祥平,张哲,袁宇波..低电压穿越控制策略下双馈风电机组故障电流特性的研究[J].电测与仪表,2016,53(20):67-74,8.
