부산대학교 도서관

This brief focuses on the event-triggered fuzzy adaptive prescribed performance control (PPC) of incommensurate uncertain fractional order systems (FOSs). First, fuzzy logic systems are employed to approximate the uncertain system dynamics and adaptive update laws are designed to estimate the approximation errors. Then, by integrating the PPC and dynamic surface control (DSC) technique, the dimension explosion phenomenon in the backstepping process is avoided and preeminent transient performance can be obtained. After that relative-threshold-based event-triggered strategy is adopted to release more communication resources and mitigate the triggered time instant. Zeno behavior is proved to be avoided. Finally, the stability of the closed-loop systems is confirmed by indirect Lyapunov method and the validity of the developed controller is verified by the simulation examples.