Abstract
This brief proposes a rotor angular velocity anti-disturbance control way for typical permanent magnet synchronous motor (PMSM) models by using fuzzy disturbance modeling. Following T-S fuzzy description for unknown exogenous disturbances, a nonlinear observer (DO) is used to estimate unknown load disturbances existed in PMSM models. Furthermore, based on the estimation of disturbances, a composite control input is discussed to ensure the PMSM stability. Meanwhile, the dynamical trajectory of angular velocity can track to the desired value. It is noted that corresponding theorem proof can be achieved by applying Lyapunov analysis method with optimization theory.
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