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Lyapunov function based design of PMSM state observer for sensorless control

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2 Author(s)
Vaclavek, P. ; Dept. of Control & Instrum., Brno Univ. of Technol., Brno, Czech Republic ; Blaha, P.

Permanent magnet synchronous (PMSM) drives become very popular in many industrial applications. Their construction provides better performance and reliability than DC drives. But there is also one significant disadvantage - actual rotor position knowledge is necessary to control the drive even in the case when only speed control is required. A position sensor has to be used increasing the drive cost. Algorithms for rotor position and speed estimation from electrical quantities have been developed by many authors. This paper presents a new approach of speed and position estimation based on the estimator stability analysis.

Published in:

Industrial Electronics & Applications, 2009. ISIEA 2009. IEEE Symposium on  (Volume:1 )

Date of Conference:

4-6 Oct. 2009