Designing Fuzzy Sliding Mode Observer based controller for sun tracker on: LMI Approach

This paper proposed an approach to design sliding mode observers for Takagi-Sugeno fuzzy model of nonlinear dynamics of sun tracker by the sector nonlinearity method. Thephotovoltaic sun tracker can collect sun rays and augment the value of incoming energy. The sun tracker considered in thisstudy has two degrees of freedom (2-DOF) and especially specified by the lack of sensors. The controller design procedureis based on a sliding mode LMI Lyapunov function method. Themain merit of the presented observer and controller is robustness against model uncertainty and disturbances. The simulation results illustrate the promising performance of the proposed observer.