电网故障下并网异步风电机组的暂态特性分析  

Transient Characteristics Analysis of Grid-Connected Wind Farm with Induction Generator under Fault in Grid

作　　者：杨培宏[1] 魏毅立[1] 张继红[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《低压电器》2011年第16期39-42,共4页Low Voltage Apparatus

基　　金：国家科技部科技人员服务企业项目(SQ2009GJA4003026)

摘　　要：研究了由笼型和双馈型异步风电机组组成的风电场并网后风电机组的暂态行为,并对比分析了在同一接入点接入不同比例容量的笼型异步发电机和双馈异步发电机时,外部三相短路故障对风力发电机组电压和转速的影响。提出了在双馈型风电机组中采用一种PI控制器,以提高风电场的稳定运行能力的方案。仿真结果表明,故障清除后,能有效地提高风电机组的稳定运行能力。该试验结果可为风电场的建设提供参考。The transient operation characteristics of the large capacity grid-connected wind farm which was consist of squirrel cage induction wind generator and double-fed induction wind generator was analyzed,The different impacts on voltage and rotate speed of wind generator were analyzed and compared on conditions that different proportional capacity of squirrel cage induction wind generator and doubly-fed induction wind generator were connected at the same point of power grid,while external three-phase short circuit fault happened.A PI controller used in doubly-fed induction generator to improve the stable operation of the wind farm was proposed.Simulation results showed that clearing the fault efficiently improved the stability operation on wind farm.The experimental results could offer references for constructing large capacity wind farm.

关 键 词：风电场 双馈型异步风电机组 笼型异步风电机组 暂态特性 

分 类 号：TM614[电气工程—电力系统及自动化] TM712.2