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Permanent magnet synchronous motor (PMSM) is a nonlinear and strong coupling system. In order to improve its dynamic performance, a speed controller method is proposed in this paper. First, the PMSM is linearzed exactly by differential geometry theory. And then the speed controller is designed by linear control theory. It is proved that the PMSM with non-salient pole model in two-phase static coordinate...
Ship maneuverability requires speed control system for electric propulsion with wide speed range and fast dynamic response. Therefore, nonlinear optimal control design method of permanent magnet synchronous motor for electric propulsion is proposed based on differential geometry in this paper. The nonlinear system model is linearized into double-input and double-output linear Brunovsky form via multi-input...
The paper presents the dynamic model of doubly fed induction generator (DFIG) including the mechanical model, the generator model and the PWM voltage source converter model. The mechanical model uses two-mass model, and the generator model includes both the stator side and the rotor side dynamics. The PWM voltage source converter is modeled as an average model in which the action of power electronic...
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