Nonlinear robust controller design for Speed Regulating System of Propulsion in the Full Range

In order to effectively control the Speed Regulating System of the Propulsion in the Full Range, based on the mathematical model of permanent magnet synchronous motor, for full-load torque fluctuation problems of the features of Speed Regulating System of the Propulsion in the Full Range, according to theory of L2 gain disturbance attenuation it designs the robust L2 Controller. In the error dynamic model, the items uncertainty caused by the changes of the Propeller pitch angle and by environmental changes of the ocean waves and ocean current will be considered as system´s disturbances, designed controller can have L2-gain of the signal for evaluation degree of interference signal less than a given performance indicators. Simulation results show that the system can be designed to meet the interference suppression and the speed tracking performance.