摘要
为了提高双馈风电机组的低电压穿越能力,在变流器直流母线增加超级电容电路,通过超级电容与变流器的协调控制,不仅可以减小故障期间转矩不平衡,延长机组穿越时间,还可以注入一定的无功,支持系统电压恢复。
In order to improve the doubly-fed wind turbine low vohage ride through capability, this paper adds a su- percapacitor circuit to the DC-link. The coordination control of the supereapacitor and converter can not only reduce the torque imbalance during the failure, extending the unit ride-through time, but also inject a certain amount of reac- tive power into grid to support the system voltage recovery.
出处
《华东电力》
北大核心
2013年第6期1145-1149,共5页
East China Electric Power
基金
国家高技术研究发展计划资助(003 2012AA050203)
国家电网科技项目资助
