摘要
对含参数跳变的一类具有有界干扰的多输入多输出系统,为改善系统的瞬态响应性能,采用由多个固定模型和两个自适应模型组成的多模型,并引入切换指标函数构成多模型切换控制器。为克服多模型方法计算量大的缺点,采用可行模型集合方法,给出了可行模型应满足的必要条件。应用这一必要条件,对系统的多个模型进行检验,可快速缩小模型可行集合的范围,再通过切换指标函数,在可行模型集合中选择正确的控制器,从而在不降低系统响应性能的前提下,提高计算速度。
A multi-model switching controller is presented to improve the transient response of the MIMO systems with the bounded disturbances and the jumping parameters. The controller is based on multiple fixed models and two adaptive models with a switching index function. The feasible model set method is proposed to reduce the computation burden of multi-model algorithm.The necessary condition that the feasible models should meet is given. The scope of feasible model set is reduced with this condition and then the correct controller is selected with the switching index function in the feasible model set. So the computation burden is reduced without the degradation of system performance.
出处
《控制工程》
CSCD
2004年第3期197-200,共4页
Control Engineering of China
