双馈型风电机组网侧换流器无功功率调节控制策略  

Reactive power regulation strategy for grid-side converter of doubly-fed induction generator in wind farm

作　　者：袁晓冬[1] 邱志鹏[2] 李群[1] 周克亮[2] 

机构地区：[1]江苏省电力试验研究院有限公司,江苏南京211102 [2]东南大学电气工程学院,江苏南京210096

出　　处：《电力自动化设备》2011年第8期16-19,共4页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(50977013);高等学校博士点基金项目(20070286013);江苏省六大人才高峰计划项目(2008116)~~

摘　　要：全面分析了双馈型风电机组网侧换流器在正常工作和故障情况下的无功调节能力,提出了相应的网侧换流器无功控制策略来充分利用其无功调节能力以改善风电场的并网能力。采用DigSILENT/Power Factory 14.0,搭建详细的双馈型风电机组模型,并接入等效弱电网。仿真结果验证了提出控制策略的有效性:正常工作情况下,网侧换流器产生的无功功率可以很好地抑制风速变化引起的电压波动;故障情况下,网侧换流器能产生接近自身容量的无功功率,在一定程度上提高故障发生后电压的恢复能力。The reactive power regulation capacity of grid-side converter of doubly-fed induction generator in wind farm is analyzed under both normal and faulty operating conditions and the reactive power control strategy for grid-side converter is proposed to fully use its reactive power regulation capacity for improving the grid-connection performance of wind farm.The model of doubly-fed induction generator set for wind farm is built with DigSILENT / Power Factory 14.0 and connected with an equivalent weak grid.Simulative results show the validity of the proposed strategy：the reactive power generated by the grid-side converter can suppress the voltage fluctuation caused by wind speed variation under normal condition and enhance the voltage recovery capability under faulty condition.

关 键 词：风电 双馈感应发电机 换流器 无功功率 控制 电压控制 

分 类 号：TM315[电气工程—电机] TM761