摘要
针对多变量线性离散系统,利用线性矩阵不等式(LMI)方法,提出一种满足H∞性能指标的保守性低的离散PI控制器设计方法.以脉宽调制(PWM)型DC-DC(升压模块)变换器为例,设计控制器,并搭建MATLAB simulink模型.仿真结果表明在输入电压和负载参数变化时,该控制器能使系统具有较好的输出品质.
One kind of improved discrete-time PI control approach is proposed vialinear matrix inequality(LMI).Based on the circuit of PWM DC-DC converter,H∞ PI controller is designed.The simulation results from the MATLAB simulink model proved that satisfactory output performance is reached, when the system under the input voltage and load perturbation.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第1期42-46,50,共6页
Journal of Fujian Normal University:Natural Science Edition
基金
福建省教育厅资助项目(JB09091)