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.
Original language | English |
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Pages (from-to) | 3834-3845 |
Journal | IEEE Transactions on Industry Applications |
Volume | 50 |
Issue number | 6 |
DOIs | |
Publication status | Published - 20 Nov 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- flux estimation
- full-order observer
- induction motor
- resistance adaptation
- sensorless
- stability