Robust nonlinear control of AC brushless motor for electric vehicles application

This article proposes a robust nonlinear control based on Lyapunov́s redesign, whose purpose is to deal with parametric uncertainty in the resistance of the motor windings. The robust controller design is based on the passivity properties of the motor, as well as energy shaping and damping injection. The application of this control technique is focused on electric vehicles mainly formed by a battery bank, a power inverter, an AC brushless motor and the mechanical transmission. The sine PWM technique is used to trigger the switching devices of inverter. The results were obtained from simulation, where is shown that robust control makes a proper tracking of electromagnetic torque.

Electric vehicles; Lyapunov́s stability; Passivity; Robust nonlinear control; Sine PWM AC motors; Brushless DC motors; Controllers; Electric inverters; Electric vehicles; Electric windings; Pulse width modulation; Robust control; Traction motors; Vehicle transmissions; Control techniques; Electromagnetic torques; Mechanical transmission; Parametric uncertainties; Passivity; Passivity properties; Robust controller design; Robust non-linear controls; Electric machine control

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