New adaptive sliding observers for position- andvelocity-sensorless controls of brushless DC motors
Chen, Z.; Tomita, M.; Doki, S.; Okuma, S.
Industrial Electronics, IEEE Transactions on
Volume 47, Issue 3, Jun 2000 Page(s):582 - 591
Digital Object Identifier 10.1109/41.847899
Summary:A new adaptive sliding observer is proposed for position- and
velocity-sensorless controls of a cylindrical brushless DC motor.
Stability of the proposed observer is guaranteed easily, because it is
based on a linear model of the motor. Sliding mode is applied for the
current estimation. Under the sliding mode, the order of the observer's
error equation is reduced. This makes the stability analysis easier, so
that robust position and velocity estimations might be achieved by the
pole assignment. Experimental results show that the proposed method is
very effective
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