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Speed sensorless vector control of induction motor using Kalman-filter-assisted adaptive observer

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2 Author(s)
Che-Ming Lee ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Chern-Lin Chen

This letter presents a new method of estimating rotor speed of an induction motor. The new method is based on an adaptive flux observer. A second-order Kalman filter is then employed to modify the estimated rotor flux. Experimental results show that the new method has better accuracy in following the speed command under heavy loads

Published in:

IEEE Transactions on Industrial Electronics  (Volume:45 ,  Issue: 2 )