Gain Scheduling of a Full-Order Observer for Sensorless Induction Motor Drives

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Journal Title
Journal ISSN
Volume Title
School of Electrical Engineering | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2014
Major/Subject
Mcode
Degree programme
Language
en
Pages
12
Series
IEEE Transactions on Industry Applications, Volume 50, Issue 6
Abstract
This paper deals with the design of a speed-adaptive full-order observer for sensorless induction motor (IM) drives. A general stabilizing observer gain matrix, having three free design parameters, is used as a design framework. A gain-scheduled selection of the free design parameters is proposed. Furthermore, the full-order observer is augmented with the stator-resistance adaptation, and the local stability of the augmented observer is analyzed. The performance of the proposed full-order observer design is experimentally compared with a reduced-order observer using a 2.2-kW IM drive.
Description
Keywords
flux estimation, full-order observers, induction motor, resistance adaptation, sensorless, stability
Other note
Citation
Qu, Zengcai & Hinkkanen, Marko & Harnefors, Lennart. 2014. Gain Scheduling of a Full-Order Observer for Sensorless Induction Motor Drives. IEEE Transactions on Industry Applications. Volume 50, Issue 6. 12. ISSN 0093-9994 (printed). DOI: 10.1109/tia.2014.2323482.