Observer-based Finite-time Adaptive Control for the power system

In recent years, the finite-time control method has received great attention. This paper discussed an observer-based finite-time nonlinear control issue for the power system. By using a finite-time practical stability criterion and constructing a state observer, the adaptive fuzzy output-feedback control method is addressed. The backstepping technique is also involved. Under the presented control strategy, the finite-time output-feedback control problem is coped for a class of strict-feedback nonlinear systems firstly. Then a mathematical model of the synchronous generator was established for simulation verification. The simulation results showed that all signals in the closed-loop system are semi-global practical finite-time stable, which verify the correctness of the theoretical analysis.