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Sensorless Control of the Permanent Magnet Synchronous Motor

Institute of Control, Robotics and Information Engineering, Poznan University of Technology, PL60965 Poznan, Poland
Author to whom correspondence should be addressed.
Sensors 2019, 19(16), 3546;
Received: 1 July 2019 / Revised: 4 August 2019 / Accepted: 8 August 2019 / Published: 14 August 2019
(This article belongs to the Special Issue Advance in Sensors and Sensing Systems for Driving and Transport)
PDF [5125 KB, uploaded 14 August 2019]


This paper describes the study and experimental verification of sensorless control of permanent magnet synchronous motors with a high precision drive using two novel estimation methods. All the studies of the modified Luenberger observer, reference model, and unscented Kalman filter are presented with algorithm details. The main part determines trials with a full range of reference speeds with a special near-zero speed area taken into account. In order to compare the estimation performances of the observers, both are designed for the same motor and control system and run in the same environment. The experimental results indicate that the presented methods are capable of tracking the actual values of speed and motor position with small deviation, sufficient for precise control. View Full-Text
Keywords: PMSM; permanent magnet motors; sensorless control; observers; variable-speed drives; Kalman filter PMSM; permanent magnet motors; sensorless control; observers; variable-speed drives; Kalman filter

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Urbanski, K.; Janiszewski, D. Sensorless Control of the Permanent Magnet Synchronous Motor. Sensors 2019, 19, 3546.

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