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Comparative Evaluation of Three-Phase AC–AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Systems

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4 Author(s)
Thomas Friedli ; Power Electronic Systems Laboratory, ETH Zurich, Zurich, Switzerland ; Johann W. Kolar ; Jose Rodriguez ; Patrick W. Wheeler

This paper introduces the methodology and the results of a comprehensive comparison of a direct matrix converter (MC), an indirect MC, and a voltage dc-link back-to-back converter for a 15-kW permanent magnet synchronous motor drive. The comparison involves the investigation of the passive components, including the EMI input filter, the required silicon chip area for a defined maximum admissible thermal loading of the power semiconductors, the total losses and/or achievable efficiency, a prediction of the resulting volume and weight of the passive components, and, finally, a tradeoff study between the efficiency, volume, and weight of the converters. Different performance indicators that ultimately allow a systematic determination of the application area of each converter topology are provided with this comparative evaluation.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:59 ,  Issue: 12 )