Analysis for Unstable Problem of PMSM Current Control System in Overmodulation Range

Unstable problem of PMSM current control system in the overmodulation range of an inverter is a well known problem, however, the cause and mechanism of this problem are still not investigated well. Actually, the main reasons which are large amount of harmonic components and voltage saturation of an inverter in this range are already known. However, the… CONTINUE READING