Position-Speed Sensorless Control Method of PMSM on Partial Sine-Wave Drive System

Abstract

PMSM (Permanent Magnet Synchronous Motor), position sensorless control method by the motor current detection is the mainstream. However, in order to perform mathematical model calculations for the motor, the deterioration of dynamic characteristics due to model errors becomes an issue. This paper presents a partial sine-wave drive system by the motor electromotive force detection.