A reduced-order position observer with stator-resistance adaptation for synchronous reluctance motor drives

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Journal Title
Journal ISSN
Volume Title
School of Electrical Engineering | A4 Artikkeli konferenssijulkaisussa
Date
2010
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
Series
Abstract
A reduced-order position observer with stator-resistance adaptation is applied for motion-sensorless synchronous reluctance motor drives. A general analytical solution for the stabilizing observer gain and stability conditions for the stator-resistance adaptation are given. The local stability of the position and stator-resistance estimation is guaranteed at every operating point except the zero frequency, if inductances are known accurately. The observer design is experimentally tested using a 6.7-kW synchronous reluctance motor drive; stable operation at low speeds under various loading conditions is demonstrated.
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Keywords
observer, stability conditions, speed sensorless, stator resistance estimation
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Citation
Tuovinen, Toni & Hinkkanen, Marko & Harnefors, Lennart & Luomi, Jorma. 2010. A reduced-order position observer with stator-resistance adaptation for synchronous reluctance motor drives. 2010 14th International Power Electronics and Motion Control Conference (EPE/PEMC). 6. ISBN 978-1-4244-7856-9 (electronic). DOI: 10.1109/epepemc.2010.5606645.