For a class of switched nonlinear systems with unmatched external disturbances and unknown backlash-like hysteresis, an adaptive fuzzy-based control strategy is proposed to handle the anti-disturbance issue. The unmatched external disturbances come from a switched exosystem. Our aim is to achieve the output tracking performance and the disturbance attenuation by using the adaptive fuzzy-based composite anti-disturbance control technique. First, based on the fuzzy logics, we design a switching adaptive fuzzy disturbance observer to estimate unmatched external disturbances. Second, a composite switching adaptive anti-disturbance controller is constructed. By means of the backstepping technique, disturbance estimations are added in each virtual control to offset the unmatched disturbances, which results in the different coordinate transformations. At last, the availability of the proposed approach is illustrated by a mass-spring-damper system.

针对一类具有不匹配的外部扰动和未知的类后冲滞后的切换非线性系统，提出了一种基于自适应模糊的控制策略来处理抗扰动问题。无与伦比的外部干扰来自切换的外系统。我们的目标是通过使用基于自适应模糊的复合抗干扰控制技术来实现输出跟踪性能和干扰衰减。首先，基于模糊逻辑，我们设计了一个切换自适应模糊扰动观测器来估计不匹配的外部扰动。其次，构建了复合切换自适应抗干扰控制器。通过反步技术，在每个虚拟控制中加入扰动估计以抵消不匹配的扰动，从而导致不同的坐标变换。