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Advances in Power Electronics
Volume 2016 (2016), Article ID 4705709, 9 pages
http://dx.doi.org/10.1155/2016/4705709
Research Article

High-Voltage Converter for the Traction Application

1Moscow Aviation Institute (National Research University), Volokolamskoe Shosse 4, A-80, GSP-3, Moscow 125993, Russia
2Joint-Stock Company “Transconverter”, Malaya Kaluzhskaya Street 15/17, Moscow 119071, Russia

Received 28 March 2016; Accepted 29 May 2016

Academic Editor: Pavol Bauer

Copyright © 2016 Sergey Volskiy et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

High-voltage converter employing IGCT switches ( V) for traction application is presented. Such a power traction drive operates with an unstable input voltage over  V DC and with an output power up to 1200 kW. The original power circuit of the high-voltage converter is demonstrated. Development of the attractive approach to designing the low-loss snubber circuits of the high-frequency IGCT switches is proposed. It is established on the complex multilevel analysis of the transient phenomena and power losses. The essential characteristics of the critical parameters under transient modes and the relation between the snubber circuit parameters and the losses are discussed. Experimental results for the prototype demonstrate the properties of new power circuit. The test results confirm the proposed high-voltage converter performance capability as well as verifying the suitability of the conception for its use in the Russian suburban train power system and other high-voltage applications.