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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/12955

Title: Design and Implementation of a matrix converter based Direct torque control system
Authors: Chen, Der-Fa;Yao, Kai-chao;Tsou, Hong-yu;Huang, Yi-Tai
Contributors: 工業教育與技術學系
Keywords: Direct torque control;Matrix converter;Space vector;Pseudo DC-link
Date: 2006-12
Issue Date: 2012-08-07T01:09:58Z
Publisher: 國立彰化師範大學
Abstract: The paper proposes a direct torque control (DTC) for a matrix converter based induction motor drive system. DTC is a high performance motor control scheme with the fastest torque and flux responses. However, the main disadvantages of conventional DTC are electromagnetic torque ripples. 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 bus voltages. Therefore, based on space vector modulation, there are three states on each voltage vector generated by a matrix converter. By suitably selecting
switching pattern, the electromagnetic torque ripples of the motor are 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.
Relation: Journal of Industrial Education and Technology, 30 :103-118
Appears in Collections:[工業教育與技術學系] 期刊論文

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