Reduced-order extended luenberger observer based sensorless vector control driven by matrix converter with nonlinearity compensation
Kyo-Beum Lee
Blaabjerg, F.
Inst. of Energy Technol., Aalborg Univ., Aalborg East, Denmark;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb. 2006
Volume: 53,
Issue: 1
On page(s): 66- 75
ISSN: 0278-0046
INSPEC Accession Number: 8765366
Digital Object Identifier: 10.1109/TIE.2005.862313
Current Version Published: 2006-02-06
Abstract
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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