Permanent magnet synchronous motor current harmonic compensation method using model predictive control

In addition to the fundamental component, harmonics exist in the flux and current signals of permanent magnet synchronous motor. These harmonics are caused by the magnetic core air-gap and the non-linearity of the inverter. This paper proposes a compensation method to eliminate the undesired harmonics in the machine stator current using a model predictive control. Thereby, the harmonic distortion in the current is reduced as well as the torque ripple. The effectiveness of the algorithm is validated in simulation.