Reduced-order extended luenberger observer based sensorless vector control driven by matrix converter with nonlinearity compensation
Kyo-Beum Lee; Blaabjerg, F.
Industrial Electronics, IEEE Transactions on
Volume 53, Issue 1, Feb. 2006 Page(s): 66 - 75
Digital Object Identifier   10.1109/TIE.2005.862313
Summary: This paper presents a new sensorless vector control system for high-performance induction motor drives fed by a matrix converter with nonlinearity compensation. The nonlinear voltage distortion that is caused by commutation delay and ON-state voltage drop in the switching devices is corrected by a new matrix converter model. A reduced-order extended Luenberger observer is employed to bring better response in the whole speed operation range, and a method to select the observer gain is presented. Experimental results are shown to illustrate the performance of the proposed system.

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