MULTI-OBJECTIVE POWER CONTROL OF A VARIABLE SPEED WIND TURBINE BASED ON H∞ THEORY

摘要：

A power control strategy for a real variable speed wind turbine system is presented in this paper. The H∞-based mixed sensitivity method is applied to realize multi-objective control such as the tracking characteristics for the rated power, poles placement and robustness to disturbances. LMI Toolbox in MATLAB is used to optimize the parameters of H∞ controller. First in this paper, a physical model of the fundamental drive-system dynamics of a 300 kW horizontal axis variable speed wind turbine (VWT) is derived. By linearizing this physical model, we can get its linearized state-space form. Second, H∞ -based S/T/R algorithm is introduced in brief. Finally, the H∞ controller of mixed sensitivity is designed on the basis of VWT model and simulation is made. The Simulation results show the better performance of the proposed control strategy compared with the conventional PI control.

关键词： Power control Wind turbine H∞-based robust control Mized Sensitivity (S/T/R) Multi-objective control LMI pole placement

作者: JI-HONG LIU DA-PING XU XI-YUN YANG

作者单位: Dept.of Automation, North China Electric Power University, Beijing, 102206, China

会议类型: 国际会议

会议名称: 2008 International Conference on Machine Learning and Cybernetics(2008机器学习与控制论国际会议)

会议地点: 昆明

会议语种:英文

页码: 2036-2041

在线出版日期: 2008-07-12（万方平台首次上网日期，不代表论文的发表时间）