Adaptation of motor parameters in sensorless PMSM drives

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2009-01-20

Department

Sähkötekniikan laitos

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Mcode

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Language

en

Pages

10

Series

IEEE Transactions on Industry Applications, Volume 45, issue 1, pp. 203-212

Abstract

This paper proposes an online method for the estimation of the stator resistance and the permanent-magnet (PM) flux in sensorless PM synchronous motor drives. An adaptive observer augmented with a high-frequency signal injection technique is used for sensorless control. The observer contains excess information that is not used for the speed and position estimation. This information is used for the adaptation of the motor parameters: At low speeds, the stator resistance is estimated, whereas at medium and high speeds, the PM flux is estimated. Small-signal analysis is carried out to investigate the proposed method. The convergence of the parameter estimates is shown by simulations and laboratory experiments. The stator resistance adaptation works down to zero speed in sensorless control.

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Keywords

parameter adaptation, permanent magnet motors, sensorless control, signal injection

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DOI

10.1109/TIA.2008.2009614

Citation

Piippo, A, Hinkkanen, M & Luomi, J 2009, ' Adaptation of motor parameters in sensorless PMSM drives ', IEEE Transactions on Industry Applications, vol. 45, no. 1, pp. 203-212 . https://doi.org/10.1109/TIA.2008.2009614

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https://urn.fi/URN:NBN:fi:aalto-201609294506

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[article-cris] Sähkötekniikan korkeakoulu / ELEC