大规模集中接入条件下风电涉网特性分析

结合当前新能源迅猛发展的现状,分析了双馈风力发电机组的基本原理,利用simulink模型仿真分析了大规模集中接入条件下风电运行特性及风险,并最终提出了"风机低电压穿越改造"、"开放风电机组无功调节能力"两相项关键措施。仿真结果表明,文中提出的技术措施可为大规模集中接入条件下,风电及电网的安全稳定运行供借鉴。

Analysis on Centralized Integration of Large-Scaled Wind Impact to Power Grid

In view of the rapid development nf new energy, particularly the centralized iniegralion of wind turbines centra- lized with power grids, this paper, first of all, demonstrates the main working principles of the doubly fed wind turbines generator （DFIG）, and then analyzes Ihe pedformance of Ihe wind turbines togcther with the operalinn risk hy simulation model, and finally proposes the rectification measures such as ＂low vohage ride-through＂ and ＂open reactive power regulation of wind turbines＂. The simulation indicates that the technical measures proposed in this paper provide usefnl reference to the safe and stable operation of both wind farms and power grid with large-sealed wind power integrated.