Volume 5, Number 1 (March 2009)                   IJEEE 2009, 5(1): 51-59 | Back to browse issues page

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A. Dastfan, F. Behrangi. Design and Simulation of a New DC Power Supply Based on Dual Bridge Matrix Converter . IJEEE. 2009; 5 (1) :51-59
URL: http://ijeee.iust.ac.ir/article-1-115-en.html

Abstract:   (5672 Views)
A conventional high power DC power supply systems consist of a three-phase diode rectifier followed by a high frequency converter to supply loads at regulated DC voltage. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor. In this paper, a DC power supply based on dual-bridge matrix converter (DBMC) with reduced number of switches is proposed. In the proposed circuit, three switches convert the low frequency AC input to a DC link. A single-phase bridge inverter converts the DC-link to a high frequency AC output. The output of the matrix converter is then processed via a high frequency isolation transformer and rectified to the regulated DC voltage. In the proposed topology only a simple voltage control loop ensures that the output voltage is regulated against load changes as well as input supply variations and the current control loop is not used to correct the input currents. Theory analysis and simulation are made to investigate performance of the proposed circuit. Simulation results show that in the proposed power supply with 7-switch, the input currents are of a high quality under varying load conditions and input voltage.
Full-Text [PDF 417 kb]   (3927 Downloads)    
Type of Study: Research Paper |
Received: 2009/03/16

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