IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Paper
Characteristic Analysis of Back EMF Variation and Rotor Position Estimation Error in Rotor Position Sensorless Control System with Winding Resistance Identifier of Permanent Magnet Synchronous Motor
Masaki OharaToshihiko Noguchi
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2013 Volume 133 Issue 8 Pages 812-820

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Abstract

Robustness to parameter variation is required for rotor position sensorless control of a permanent magnet synchronous motor (PMSM) using a motor model. Therefore, various methods for measuring parameter variation or eliminating the influence of this variation have been proposed. This paper describes a rotor position sensorless control system of the PMSM that is based on a model reference adaptive system with a winding resistance and a back emf coefficient estimator. Only the winding resistance estimator minimizes the rotor position estimation error by compensating for the variation of the winding resistance and the back emf coefficient concurrently. Experimental results indicate that the winding resistance estimator is effective against both variations.

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© 2013 by the Institute of Electrical Engineers of Japan
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