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Robust integral backstepping control for sensorless IPM synchronous motor controller
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DOI：10.1016/j.jfranklin.2012.02.005.png)
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Abstract
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In this paper, a sensorless speed control for interior permanent magnet synchronous motors (IPMSM) is designed by combining a robust backstepping controller with integral actions and an adaptive interconnected observer. The IPMSM control design generally requires rotor position measurement. Then, to eliminate this sensor, an adaptive interconnected observer is designed to estimate the rotor position and the speed. Moreover, a robust nonlinear control based on the backstepping algorithm is designed where an integral action is introduced in order to improve the robust properties of the controller. The stability of the closed-loop system with the observer-controller scheme is analyzed and sufficient conditions are given to prove the practical stability. Simulation results are shown to illustrate the performance of the proposed scheme under parametric uncertainties and low speed. Furthermore, the proposed integral backstepping control is compared with the classical backstepping controller. (C) 2012 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.
Keywords:
ROTOR POSITION ESTIMATION
OBSERVER
SPEED
DRIVE
Journal
J
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3.7
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