风电机组高电压穿越技术研究  

Feasibility analysis on high voltage ride-through of wind turbines

作　　者：刘雪菁[1] 朱丹[1] 宋飞[1] 王彤[1] 苗亚[1] 

机构地区：[1]中国电力科学研究院,江苏南京210003

出　　处：《可再生能源》2013年第11期34-38,共5页Renewable Energy Resources

摘　　要：随着风电入网比例的增大,风电入网导则也逐步发展建立,入网导则的主要目的是确保风电场的入网运行不影响整个电力系统的稳定。风电场低电压穿越(LVRT)已作为热点技术被广泛关注,但风电机组风电场高电压穿越没有得到相应的重视。文章基于常见机组类型,首先介绍了风电机高电压穿越(HVRT)方面现有电网要求,给出了现有风电场高电压穿越能力要求曲线,对风电机组高电压穿越软硬件的技术方案。最后仿真证明了所提技术方案的正确性,分析了该技术方案对风机运行成本方面的可行性。With the rapid increase of wind farms, sets of specific requirements have been established or are being developed. The objective of these grid guidelines is to ensure wind farms not adversely affecting the power system. The control strategies and theories on low voltage ride through （LVRT） have been focused on for a long time, but how to deal with high voltage ride through is seldom discussed. The main types of wind turbine are introduced; the major grid requirements of high voltage ride through （HVRT） are discussed in this paper. The capability of HVRT for current wind farms is introduced. The technology and its implementation of the HVRT of wind turbines are focused on. The technical feasibility to increase the capacity of HVRT for wind turbines and the cost are analyzed in detail. The simulation results show that the methods proposed in this paper are available.

关 键 词：风电 高电压穿越 DC CHOPPER 无功控制 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]