双馈风电机组故障穿越方案研究

Doubly-fed Induction Generator Wind Turbine Fault Ride Study

针对风电并网规范对风电机组故障穿越要求高的问题,介绍基于串联网侧变流器(SGSC)故障穿越方案的拓扑结构,对双馈风电机组采用SGSC实现低电压穿越的控制原理进行归纳分析,提出一种结合固态断路器(SSCB)和SGSC的新型故障穿越方案,分析新型故障穿越方案存在的问题及处理方法并提出进一步研究的方向。

This paper analyzes architectures of DFIG adopting series grid side converter（SGSC） are presented at first, for high require of regulatory standards for wind turbines fault ride through some grid disturbances, induces and compares SGSC control TOP strategies of low voltage ride through are carried out, proposes a new architecture of DFIG combining solid state circuit breaker（SSCB） and SGSC. Finally,explores questions of new architecture and specific solutions. Regulatory standards for grid interconnection all require that wind turbines should ride through some grid disturbances.