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		Hicham CHAOUI,Pierre SICARD.[en_title][J].Control Theory and Technology,2012,10(3):337~343.[Copy]

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HichamCHAOUI,PierreSICARD
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(Industrial Electronics Research Group, School of Engineering, Université du Québec à Trois-Rivières)

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Received:December 17, 2010Revised:September 14, 2011

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Adaptive control of permanent magnet synchronous machines with disturbance estimation

Hicham CHAOUI,Pierre SICARD

(Industrial Electronics Research Group, School of Engineering, Université du Québec à Trois-Rivières)

Abstract:

In this paper, an adaptive control scheme is introduced for permanent magnet synchronous machines (PMSMs) as an alternative to classical control techniques. The adaptive control strategy capitalizes on the machine’s inverse dynamics to achieve accurate tracking by using an observer to approximate disturbance in the form of friction and load torque. The controller’s output is then fed to a space vector pulse width modulation (SVPWM) algorithm to produce duty cycles for the inverter. The control scheme is validated through a set of simulations on an experimentally validated PMSM model. Results for different situations highlight its high speed tracking accuracy and high performance in compensating for friction and load disturbances of various magnitudes.

Key words: Adaptive control Speed control Observer Disturbance estimation Synchronous machine