一类复杂系统自适应观测器设计

分析和研究了一类非线性不确定复杂控制系统的自适应状态观测器设计问题,利用模糊逻辑系统具有充分逼近连续函数的性质,在状态观测器的鲁棒项构造中引入了模糊逻辑系统的输出,并用它完成了逼近系统中不确定性的任务,从而削弱了已有的研究成果在设计这类系统状态观测器时所使用的较为苛刻的假设条件,并证明了所设计的观测器与被控系统状态间的误差及各参数估计误差一致终极有界。最后用仿真实例证明了所采用方法的有效性。

Adaptive Observer Design for a Class of Complex Systems

Based on the fuzzy logic system's property of fully approximating any continuous function, the adaptive state observer design for a class of nonlinear complex control systems with uncertainties is discussed. A fuzzy logic system is set up to approximate the uncertainties of these systems successfully, and an adaptive state observer for the systems and parameter adaptive laws are constructed under some simple conditions, which can make the state estimated error and parameter estimated error of the systems uniformly ultimately bounded. Finally, the simulation shows the validity of the method in this paper.