摘要
在分析双馈风力发电机组主控系统、变流器、变桨机构协同控制的基础上,提出了通过调整叶片的桨距角,减少风能的捕获,防止机组超速的变桨机构控制策略及电网电压恢复后快速、稳定恢复有功功率输出的功率给定策略。110 kW小功率试验台模拟试验及2 MW双馈风电机组低电压穿越测试说明,控制策略能够满足不同风况下,双馈风电机组低电压穿越过程中转速及功率恢复的控制。
On the basis of analyzing the cooperative control of the main control system,the converter and the pitch system for doubly-fed wind turbine units,this paper proposed the pitch control strategy of preventing turbine over-speed and the power preset strategy of fast and stable active power output after grid voltage recovery.Through the mini-watt （1 10kW）bench test and 2MW doubly-fed wind turbine onsite operation test,it indicates that this control strategy is capable to meet the control requirement of speed and power recovery for the doubly-fed wind turbine during low voltage ride through（LVRT）under different wind conditions.
出处
《电器与能效管理技术》
2014年第17期49-54,共6页
Electrical & Energy Management Technology
关键词
低电压穿越
桨距角
功率恢复
双馈风电机组
low voltage ride through （LVRT）
pitch angle
power recovery
doubly-fed wind turbine
