Implementation of a Non-Sinusoidal Permanent-Magnet Synchronous Machine Vectorial Control

This paper shows the results of the implementation of a proposed vectorial model for non-sinusoidal air-gap magnetic flux density distribution permanent-magnet synchronous machines (SM-PMSM). This work shows a comparison between this kind of machine fed by a conventional six-step 120deg inverter and an inverter with the proposed non-sinusoidal vectorial machine model. The same machine is fed by these two kinds of converter in a positioning drive system of a machine-tool application, both in similar situations. The results of rotor position are shown for those two situations, showing the effect of electromagnetic torque ripple in rotor position, consequently, in tool positioning. This same machine was submitted to a traction application and was fed by the converter employing non-sinusoidal vectorial machine model. The measured stator currents and simulation results were compared in similar situations