Implementation of Voltage-Based Commutation in Space-Vector-Modulated Matrix Converter
A novel voltage-based commutation (VBC) strategy without explicit input-voltage measurement is proposed in this paper. By properly selecting the width of the critical intervals, the two-step uncritical commutation and four-step critical commutation approaches are utilized to realize safe VBC. The ge...
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Veröffentlicht in: | IEEE transactions on industrial electronics (1982) 2012-01, Vol.59 (1), p.154-166 |
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Sprache: | eng |
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Zusammenfassung: | A novel voltage-based commutation (VBC) strategy without explicit input-voltage measurement is proposed in this paper. By properly selecting the width of the critical intervals, the two-step uncritical commutation and four-step critical commutation approaches are utilized to realize safe VBC. The general switching patterns of space-vector modulation (SVM) are analyzed, and the four-step critical commutations are avoided by using four selected SVM switching patterns; thus, all the commutations in the matrix converter can be achieved by two-step VBC. In order to prevent the commutation processes from being interrupted, the triple-zero-vector switching pattern and the single-zero-vector switching pattern are utilized by selecting an appropriate commutation time and the output-voltage/current distortion is minimized. Prototype experiments have been carried out to show the validity of the control strategies. |
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ISSN: | 0278-0046 1557-9948 |
DOI: | 10.1109/TIE.2011.2130497 |