Multi-objective optimization torque control of wind turbine based on LQG Optimal control

摘要：

　　Considering power quality and drive train load,a kind of linear quadratic Guassian optimal control strategy based on Kalman filter is proposed in this thesis,in order to reduce gearbox fatigue load while improving output power quality of wind turbines.With this optimization strategy,system noise and measurement noise are estimated through Kalman filter,adjusting dynamic optimal gain according to the system of estimation,in order to achieve optimal control of different working point.A 3MW doubly-fed wind turbines is taken as the control object in the simulation,the results indicate that,compared with the conventional pitch control strategy,the proposed pitch controller not only reduced the fluctuation of power but also reduced the torque ripple of gearbox,the fatigue load of gearbox and other key component in drive train were mitigated.

关键词： Wind turbines Dynamic load LQG controller Optimal control

作者: Wang Xiaodong Hou Shixu Wang Shirong Liu Yingming Li Lixia

作者单位: Wind Energy Institute,Shenyang University of Technology, Shenyang,China, 110023 Wind Energy Institute,Shenyang University of Technology, Shenyang,China, 110023;Automation Engineeri

会议类型: 国际会议

会议名称: the 25th Chinese Control and Decision Conference(第25届中国控制与决策会议)

会议地点: 贵阳

会议语种:英文

页码: 405-408

在线出版日期: 2013-05-01（万方平台首次上网日期，不代表论文的发表时间）