Gate drive level intelligence and current sensing for matrixconverter current commutation
Wheeler, P.W.; Clare, J.C.; Empringharn, L.; Bland, M.; Apap, M.
Industrial Electronics, IEEE Transactions on
Volume 49, Issue 2, Apr 2002 Page(s):382 - 389
Digital Object Identifier   10.1109/41.993271
Summary:This paper is concerned with the process of current commutation in matrix converters. The mechanisms involved in the commutation process are described and practical waveforms are presented. A novel commutation strategy is described that uses gate drive level intelligence in the form of a field-programmable gate array. Current direction is determined using device voltages and, therefore, the measurement problems associated with all other commutation methods are overcome. Practical results from an 18-kW matrix converter induction motor drive are presented

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