双馈风电场群协调二级电压控制策略

针对双馈风电场群接入电网的电压稳定性的问题，结合双馈风电场无功备用容量和协调二级电压控制原理的介绍，提出适用于双馈风电场群接入地区的协调二级电压控制策略，依据河北南网某实际风电系统为例仿真表明，该方法能够使双馈风电场群无功裕度更大、无功出力更均衡。

Coordinated Secondary Voltage Control Strategy of DFIG Based on Wind Farm Group

Aiming at the voltage bad stability DFIG based wind farm group connected with grid ,combined with intro-duction of DFIG based wind farm reactive power capacity and coordinated secondary voltage control principle ,propo-ses the coordinated secondary voltage control strategy ,sim-ulation results of some real wind system of Hebei Soughtern Grid show the method can make wind farms operating with larger VAR reserves and more balanced reactive power .