摘要
针对高阶复杂系统提出一种分数阶内模控制器设计方法.利用微粒群算法(PSO)进行模型化简,基于内模控制(IMC)原理设计分数阶控制器,该控制器仅有一个可调参数,并根据鲁棒性能指标给出控制器参数整定的解析表达式.仿真结果表明,该方法可以使系统同时具有良好的目标值跟踪特性、扰动抑制特性以及克服参数变化的鲁棒性.
A designing method of fractional order internal model controller is proposed for complex systems. Firstly, the model is reduced by using the particle swarm optimization（PSO） algorithm. Then a fractional order controller is designed based on the principles of internal model control（IMC）. The controller has only one adjustable parameter. Moreover,according to a robustness index, the analytical expression of controller parameter tuning is given. The simulation results show that the fractional order internal model controller can provide a better dynamic performance of both the command tracking and disturbance rejection and a better robustness against the parameters perturbation of the system.
出处
《控制与决策》
EI
CSCD
北大核心
2015年第3期531-535,共5页
Control and Decision
基金
国家自然科学基金项目(61203049)
山西省自然科学基金项目(2012011027-4)
关键词
复杂系统
内模控制
分数阶控制器
鲁棒性
complex system
internal model control
fractional order controller
robustness
