Technical and economical comparison of different autotransformer based 36 pulse AC-DC Converters

  • Rohollah Abdollahi Department of Electrical Engineering, Technical and Vocational University (Qom Boys Technical College), Qom, Iran

Abstract

Abstract Three-phase multipulse ac–dc converters (MPC) are being developed to improve power quality to reduce harmonics in ac mains and ripples in dc output. This study, based on technical and economic factors, compares different autotransformer based 36 pulse AC-DC Converters. This paper presents a comparison of tapped delta, polygon and T connected autotransformer based 36-pulse AC-DC converters. These converters were implemented and simulations were made using Matlab/Simulink software for similar ratings under different load conditions. A set of power quality indices on input ac mains and on a dc bus for a DTCIMD fed from different 36-pulse ac-dc converters is given to compare their performance. The economic comparison of 36 pulse ac–dc converters is based on the apparent power (kVA) ratings of the different autotransformers for 36 pulse AC-DC converters. Also, a prototype is developed and the experimental measurements obtained are presented to validate the feasibility and operability of the 36-pulse AC-DC converter. The 36-pulse AC-DC converter offers a total harmonic distortion of 4% and can operate at near-unity power factor, in compliance with IEEE and IEC standards.

Author Biography

Rohollah Abdollahi, Department of Electrical Engineering, Technical and Vocational University (Qom Boys Technical College), Qom, Iran
R. Abdollahi received the B.S. degree in electrical engineering from Buali Sina University, Hamedan, Iran, in 2007, and the M.Sc. degree in electrical engineering (power electronics and electrical machines) from Iran University of Science and Technology, Tehran, Iran, in 2011. He is faculty member of the Department of Electrical Engineering, Technical and Vocational University (Qom Boys Technical College), Qom, Iran. He is the author of more than 50 journal and conference papers. He has been filed 3 US and 11 Iran patents. His fields of interest include power electronics, electrical machines and drives, power quality, and power systems.

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Published
2020-01-22
How to Cite
ABDOLLAHI, Rohollah. Technical and economical comparison of different autotransformer based 36 pulse AC-DC Converters. Journal of Power Technologies, [S.l.], v. 99, n. 4, p. 281–288, jan. 2020. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1202>. Date accessed: 29 july 2021.
Section
Electrical Engineering

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