Predictive Current Control of Sensorless Linear Permanent Magnet Synchronous Motor

In the vector control system of a tubular oscillating permanent magnet synchronous linear motor, it is difficult to obtain accurate feedback information from conventional mechanical sensors under bad and complex working conditions. This paper presents new predictive current designed estimate speed oscillation motor. It implements two techniques: The first technique using sliding-mode observer’s observer for estimation. second design deadbeat replace PI regulator in loop; solves difficulties global optimization parameter setting. simulation experimental results show that this method gives good dynamic performance.