Implementation of Voltage-Based Commutation in Space-Vector-Modulated Matrix Converter

Autor:	Hua Lin, Bi He, Limin Yue, Hongwu She, Xingwei Wang, Xing An
Rok vydání:	2012
Předmět:	Support vector machine Engineering Control and Systems Engineering Control theory Modulation business.industry Distortion Matrix converters Commutation Electrical and Electronic Engineering business Space vector Voltage
Zdroj:	IEEE Transactions on Industrial Electronics. 59:154-166
ISSN:	1557-9948 0278-0046
DOI:	10.1109/tie.2011.2130497
Popis:	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.
Databáze:	OpenAIRE
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