摘要
变桨控制系统是变速恒频风力发电机组的重要组成,它不仅关系到大型兆瓦级风机的安全运行,而且对风能吸收具有较好的控制作用。其中变桨控制算法是其控制系统的核心部分,它能减小整机机械载荷,为风机功率稳定输出做出重要贡献。这里基于2 MW双馈风力发电系统,提出具有转速二阶陷波滤波器的增益调度-神经网络PI控制算法,使风机能以最佳速率变桨到最佳桨距角位置,从而输出稳定功率,减小整机振动。最后对2 MW双馈异步风机变桨控制进行仿真和实际监控图分析,结果表明该控制算法具有良好控制效果。
Pitch control system is an important part of the VSCF wind power generators,it＇ s related to the safe operation of large MW grade wind generators, and makes the absorption of wind power has better control effect.One pitch control algorithm is the core part of the control system, reduces the mechanical load, and makes an important contribution to the stability of the output power.This paper is based on 2 MW doubly-fed wind power systems,using second order filter and gain scheduling-double PI control algorithm.Makes wind generators in the best rate to reach the best position.This algo- rithm is able to stabilize output power,reduces the vibration of the whole machine.The 2 MW doubly-fed induction gen- erators pitch control simulation and practical monitoring diagram analysis show that the algorithm has good control effect.
出处
《电力电子技术》
CSCD
北大核心
2013年第2期53-54,60,共3页
Power Electronics
