基于H_2/H_∞状态反馈风能转换系统双频环优化控制  

TWO-FREQUENCY-LOOP OPTIMAL CONTROL FOR WIND ENERGY CONVERSION SYSTEM BASED ON H_2/H_∞ STATE FEEDBACK

作　　者：吴定会[1] 李元龙[1] 纪志成[1] 

机构地区：[1]江南大学电气自动化研究所,无锡214122

出　　处：《太阳能学报》2010年第9期1185-1190,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(60774030);教育部博士点基金(200802950004)

摘　　要：:根据风速的多时间尺度特性,在风能转换系统非线性机理模型的基础上,建立风能转换系统的双频模型;并设计了双频环优化控制器,其中低频环采用PI稳态优化控制方法;高频环采用H_2/H∞状态反馈的多目标优化控制。仿真结果表明,基于H_2/H_∞状态反馈的风能转换系统的双频环优化控制方法是有效的,并在多个控制指标之间进行折衷处理。According to multi-time scale of wind speed, two-frequency model was established for WECS based on the nonlinear mechanical model, and then two-frequency-loop optimal controller was designed. PI static optimal control was used in the low-frequency-loop, while multi-objective H2/H∞ state feedback optimal control was introduced in the high-frequency-loop. Simulation results demonstrate the feasibility of two-frequency-loop optimal control based on multi-objective H2/H∞ state feedback, and a trade-off is achieved between multi-objective optimizations.

关 键 词：双频环 多目标H2/H∞控制 优化控制 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]