In this paper, an event-triggered disturbance attenuation and rejection scheme is proposed for nonlinear networked systems with limited bandwidth and multiple disturbances based on the interval type-2 Takagi-Sugeno fuzzy model. A fuzzy disturbance observer is constructed to estimate the disturbance generated by the exogenous system, and then such kind of disturbance can be rejected. Sufficient conditions are presented such that a fuzzy H_∞ controller can be designed to guarantee the stability of the resulting closed-loop system with a prescribed performance index, regardless of disturbances. An event-triggered control scheme is designed to reduce the frequency of the controller updating and thus save the network resources. A numerical example is given to demonstrate the validity of the new design methods presented.

本文基于区间2型Takagi-Sugeno模糊模型，提出了一种带宽受限，多重干扰的非线性网络系统的事件触发扰动衰减与抑制方案。构造了一个模糊干扰观测器来估计外源系统产生的干扰，然后可以拒绝这种干扰。充分条件被呈现以使得模糊ħ _∞控制器可以设计为在规定的性能指标下保证所得闭环系统的稳定性，而不受干扰的影响。设计一种事件触发的控制方案，以减少控制器更新的频率，从而节省网络资源。数值例子说明了所提出的新设计方法的有效性。