Abstract
A back electromotive force-based position observer for motion-sensorless synchronous reluctance motor (SyRM) drives is augmented with high-frequency signal-injection method for improved low-speed operation. Previously proposed observer structure is further improved to account for the cross saturation in the motor. The combined observer is experimentally evaluated using a 6.7-kW SyRM drive in low-speed operation and under various load conditions. The resulting position error at low speeds and standstill is small.
Original language | English |
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Pages (from-to) | 181-189 |
Journal | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS |
Volume | 2 |
Issue number | 2 |
DOIs | |
Publication status | Published - 4 Apr 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- observer
- parameter uncertainties
- speed sensorless
- stability conditions