【摘要】 用T-S模糊模型逼近非线性系统,将其描述成多个局部线性系统的组合.对每一局部线性系统不满足匹配条件的不确定项,根据李亚普诺夫稳定性理论设计变结构控制器,证明了闭环系统是全局渐近稳定的,跟踪误差收敛到零,仿真结果也表明该方法的有效性.更多还原

【Abstract】 Using T-S fuzzy model as an approximation to a nonlinear system, the nonlinear system is described by the combination of local linear models. Based on Lyapunov theory, the variable structure controller is designed when uncertainties of every local linear model dissatisfy the matching condition. The closed-loop system is globally asymptotically stable and tracking error converges to zero. Simulation example demonstrates the effectiveness of the proposed control strategy.更多还原