一种新的线性时变系统鲁棒自适应控制算法

A New Robust Adaptive Control Algorithm for Linear Time-varying Plants

提出一种新的线性时变(LTV)系统间接自适应控制算法,以保证控制系统对一类未建模动态、有界扰动及系统参数变化同时具有鲁棒性,采用的修正死区方法不需要未建模动态和外部扰动上界参数的先验信息,并且给出时变控制系统稳定性结果及鲁棒性能分析。

In this paper, a new indirect adaptive control algorithm for linear time-varying plants is proposed to achieve robustness to a class of unmodelled dynamics, bounded disturbances, and plant parameter time variations. A modified dead zone technique is used so that the knowledges of the parameters of the upper bounding function on the unmodelled dynamics and the disturbances are not required. The stability analysis and the robust performance of adaptively controlled time -varying systems are provided for the new scheme.