Reduction of torque undulation and extension of the Park’s transformation applied to non-sinusoidal saturated synchronous motors Original Research Article

This paper present the principle of an extended field oriented control. This control strategy follows from an extension of the Park’s transformation, suitable for non-sine synchronous motors with salient poles. In particular, we highlight that the structure of the classical field oriented control is kept in the case of non-sine motors provided minor modifications. The presented method allows to regulate constant values in steady state while applying non-sine currents to the motor. The shape of these non-sine currents is predetermined so as to minimise the steady state torque undulation.