摘要
为解决并网风电场引起的电压稳定问题,提出了一种利用静止同步补偿器和双馈感应风力发电机稳定并网点电压的两级无功协调补偿策略。该策略的第一级无功补偿由静止同步补偿器工作于电压调节模式,当静止同步补偿器输出无功达到最大值仍不能很好稳定并网点电压时,利用双馈感应风电机组作为补偿单元的第二级无功补偿启动。算例分析表明,所提出策略可以抑制并网点电压波动,并具有一定的电压支持能力。
In order to solve the grid voltage stability problems caused by the wind farm, a strategy of two stage of coordinated reactive power compensation is proposed. The strategy utilizes STATCOM and DFIG to stabilize the voltage of interconnection point of wind farm. The first staged reactive power compensation of this strategy is worked by STATCOM operating in voltage regulation mode. When the output of reactive power of STATCOM reaches its maximum and the voltage of interconnection point of wind farm is still not get better stabilized, the second staged reactive power compensation used DFIG as compensation unit starts. Example analysis demonstrates that the proposed control strategy can supress the fluctuation of interconnection point voltage and has a certain voltage support capability.
出处
《电力科学与工程》
2013年第9期13-17,28,共6页
Electric Power Science and Engineering
基金
上海市科委信息处重点资助项目(11511504405)
上海市教委科研创新资助项目(12YZ142)
