A reduced-order position observer with stator-resistance adaptation for PMSM 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 proposed for motion-sensorless permanent-magnet synchronous motor drives. A general analytical solution for the stabilizing observer gain and stability conditions for the stator-resistance adaptation are derived. Under these conditions, the local stability of the position and stator-resistance estimation is guaranteed at every operating point except the zero frequency, if other motor parameters are known. The proposed observer design is experimentally tested using a 2.2-kW motor drive; stable operation at very low speeds under different loading conditions is demonstrated.
Description
Keywords
observer, stability conditions, speed sensorless, stator-resistance estimation
Other note
Citation
Hinkkanen, Marko & Tuovinen, Toni & Harnefors, Lennart & Luomi, Jorma. 2010. A reduced-order position observer with stator-resistance adaptation for PMSM drives. 2010 IEEE International Symposium on Industrial Electronics (ISIE). 6. ISBN 978-1-4244-6390-9 (printed). DOI: 10.1109/isie.2010.5637851.