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In this work, a fuzzy logic control system is proposed for PMSMs without knowledge of the machine's parameters. The scheme consists of two adaptive fuzzy controllers, respectively for velocity and direct current control. The control scheme stability is proven by the Lyapunov stability theory and its performance is validated through a set of simulations on an experimentally validated PMSM model. The...
A hybrid control system for PMSM that requires rough knowledge of the machine's quadrature inductance only is proposed. The scheme consists of an adaptive fuzzy speed controller and a sliding mode current controller. Lyapunov stability conditions are used to design the controllers that result into low sensitivity to torque disturbances and parameter variations.
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