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NCUEIR > College of Technology > Department of Industrial Education and Technology > Proceedings > Item 987654321/13025

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/13025

Title:	Direct Torque Control for a Matrix Converter Based on Induction Motor drive Systems
Authors:	Chen, Der-Fa;Liao, Chin-Wen;Yao, Kai-chao
Contributors:	工業教育與技術學系
Keywords:	Direct torque control;Matrix converter;Space vector;Pseudo DC-link
Date:	2007-09
Issue Date:	2012-08-07T01:17:28Z
Publisher:	IEEE
Abstract:	The paper proposes a direct torque control (DTC) scheme for a matrix-converter-fed induction motor drive system. DTC is a high performance motor control scheme with fast torque and flux responses. However, the main disadvantage of conventional DTC is electromagnetic torque ripple. Besides, the matrix converter is a single-stage ac-ac power conversion device without dc-link energy storage elements. Due to the properties of the matrix converter, the pseudo dc-link will provide with three different types of voltage: the high, middle, and low voltages. Therefore, based on space vector modulation generated by a matrix converter, there are three states on each space vector location. By suitably selecting switching pattern, the electromagnetic torque ripple of the motor is effectively reduced. Using this switching strategy, the advantages of the DTC schemes and the benefits of the matrix converters can be combined. As a result, a satisfactory servo drive can be achieved. Key words: direct torque control, matrix converter, space vector, pseudo DC-link.
Relation:	2nd International Conference on Innovative Computing, Information and Control, Kumamoto, Japan, Sept. 5-7, 2007
Appears in Collections:	[Department of Industrial Education and Technology] Proceedings

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