Observer-Based Output-Feedback Asynchronous Control for Switched Fuzzy Systems
研究了一类切换连续时间T-S模糊系统的输出反馈控制设计问题，针对系统与控制器之间的异步切换，基于状态观测器提出了输出反馈控制方案，并给出了保证系统稳定的充分条件。
This paper investigates an output-feedback control design problem for a class of switched continuous-time Takagi-Sugeno (T-S) fuzzy systems. The considered fuzzy systems consist of several switching modes and each switching mode is described by T-S fuzzy models. In addition, there exists the asynchronous switching between the system switching modes and the controller switching modes. By using parallel distributed compensation design method, the output-feedback control schemes are developed based on state observers for the measurable and immeasurable premise variables cases. The sufficient conditions of ensuring the switched control system stabilization are proposed based on the theory of Lyapunov stability and average-dwell time methods. The controller and observer gains are obtained via two-step method. An illustrated numerical example is provided to show the effectiveness of the proposed control approaches.