Nonlinear Control of Permanent Magnet Synchronous Motor Based on the Method of Control Lyapunov Function

In view of permanent magnet synchronous motor (PMSM) is a nonlinear systems with complex coupling. Using the d-q model, this paper applies the method of control Lyapunov function to design a nonlinear controller. The principle is to design the controlling rule by means of the system equilibrium point conversion and find out a suitable Lyapunov function. Simulation results in Matlab shows that the method of control Lyapunov function had better dynamic performance and anti-disturbance capability than traditional linear controller.