含大规模风电场电力系统暂态稳定性分析  

Analysis on Transient Stability of Power System with Large-scale Wind Farms

作　　者：周士琼[1] 王倩[1] 吕潇[1] 郝勇奇 刘东霖[1] 倪亚玲 

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]电子科技大学,四川成都610054

出　　处：《四川电力技术》2016年第5期9-13,25,共6页Sichuan Electric Power Technology

摘　　要：大规模风电场并网将会影响电力系统暂态稳定性。基于直流潮流模型、扩展等面积定则并利用Matlab/Simulink仿真分析了不同的电压跌落、故障持续时间以及低电压穿越(LVRT)控制策略对系统暂态稳定性的影响。仿真结果表明:电压跌落越深、故障时间越长,系统暂态稳定性越差,风电场的低电压穿越控制策略能够改善故障期间系统暂态稳定性,但是其能力有限。The large - scale grid integration of wind farms will affect the transient stability of power system. Based on direct - current load flow model, the extended equal area criteria and Matlab/ Simulink simulation, the impact of different voltage drop, fault duration and LVRT （ low voltage ride through） control strategy on system transient stability is analyzed. Simulation results show that the deeper voltage drop and the longer fault time, the worse transient stability. LVRT control strategy of wind farms can improve transient stability during a fault, but its capacity is limited

关 键 词：风电场 电力系统 暂态稳定性 低电压穿越 

分 类 号：TM712[电气工程—电力系统及自动化]