励磁系统的H_2/H_∞保性能控制器  

H_2/H_∞ guaranteed cost control of excitation system

作　　者：蔡超豪[1] 

机构地区：[1]沈阳工程学院,辽宁沈阳110136

出　　处：《继电器》2005年第20期44-48,52,共6页Relay

摘　　要：基于H2/H∞保性能控制理论和直接反馈线性化研究了单机-无穷大电力系统的励磁控制器设计。建立了含不确定因素的数学模型,采用解线性矩阵不等式(LM I)方法,利用MATLAB/LM I工具箱得出发电机励磁的H2/H∞保性能控制律。分析表明这种控制方法兼有鲁棒性能和最优性能,使H∞控制具有较小的保守性,提高了电力系统的稳定性,并能满足电压精度的要求。In the paper, the design of excitation controller for single-machine infinite-bus power system based on H2/H∞ guaranteed cost control theory and direct feedback linearization is presented. The robust control model with uncertain parameters is established. The H2/H∞ control rule is obtained by MATLAB/LMI toolbox. The analysis demonstrates the control method possesses good adaptability and robustness. It can improve the stability of the power system and satisfy the requirement of voltage regulation accurary.

关 键 词：发电机励磁控制器 H2/H∞ 保性能控制 LMI方法 

分 类 号：TM571.6[电气工程—电器]