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针对一类单输入单输出非线性多时滞系统,提出了一种自适应模糊跟踪控制方案.该方案结合了自适应控制和H_∞控制.构建了自适应时滞模糊逻辑系统用来逼近未知时滞函数;设计了H_∞补偿器来抵消模糊逼近误差和外部扰动.根据跟踪误差给出了参数调节规律.证明了误差闭环系统满足期望的H_∞跟踪性能.仿真结果表明了该方案的有效性.
An adaptive fuzzy tracking control scheme is proposed for a class of single-input / single-output nonlinear systems with multiple delays. The scheme combines adaptive control and H_∞control, and constructs adaptive time-delay fuzzy logic system to approximate the unknown H_∞ compensator is designed to counteract the fuzzy approximation error and the external disturbance.According to the tracking error, the law of parameter adjustment is given.The error closed-loop system is proved to satisfy the expected H_∞ tracking performance.The simulation results show the effectiveness of the proposed scheme .