中国电力2013，Vol.46Issue(3)：19-23,5.
风力发电机组优化变桨距控制研究
Optimum Pitch Control of Wind Turbines
摘要
Abstract
Dynamic responses of a wind turbine to sudden wind speed changes are usually hysteretic because of the wind' s stochastic characteristics and large moment of inertia in the rotor, which may cause large fluctuation of rotor speed and output power. Based on linear quadratic Gaussian (LQG) control theory, an optimum pitch control is proposed, which could inhibit the rotor speed and power fluctuations better than traditional PI control. With a wind turbine of 2 MW as a research object, a simulation analysis of LQG and PI controls is conducted by using FAST-MATLAB/Simulink joint software platform, which shows that the optimum pitch control based on LQG theory could effectively reduce the fluctuations of speed and power.关键词
风力发电机组/变速变桨控制/状态估计/线性二次高斯控制理论Key words
wind turbine generator/ variable speed and variable pitch control/ state estimation/ linear quadratic Gaussian control theory分类
信息技术与安全科学引用本文复制引用
何玉林,罗敏,谢双义,钟祥,金鑫..风力发电机组优化变桨距控制研究[J].中国电力,2013,46(3):19-23,5.基金项目
国家自然科学基金资助项目(51005255) （51005255）
教育部高等学校博士学科点科研基金资助项目(2009019120005) （2009019120005）
