Traction drive with medium-frequency transformer - Control strategy based on NULL vectors

Author

Drabek, Pavel ; Pittermann, Martin ; Los, Miroslav ; Bednar, Bedrich

Author_Institution

Dept. of Electromech. & Power Electron., Univ. of West Bohemia in Pilsen, Plzen, Czech Republic

fYear

2014

fDate

19-20 May 2014

Firstpage

418

Lastpage

423

Abstract

This paper presents research motivated by industrial demand for special novel high voltage traction drive topology devoted to minimization of traction transformer weight against classical locomotives operates on both 25kV/50Hz and 15kV/162/3Hz trolley voltages. This paper deals with testing of whole traction converter prototype in configuration: two single phase matrix converter + medium frequency transformer + single phase voltage-source active rectifier in selected transient states and verifying of proper function of control algorithms. The new control of traction converter based on inserting zero vectors has been proposed to smooth taken trolley current.

Keywords

locomotives; matrix convertors; power transformers; rectifiers; traction; trolleys; vectors; control algorithms; control strategy; frequency 16.7 Hz; frequency 50 Hz; high voltage traction drive topology; inserting zero vectors; locomotives; medium-frequency transformer; null vectors; single phase matrix converter; single phase voltage-source active rectifier; traction converter prototype; traction transformer weight; trolley current; trolley voltages; voltage 15 kV; voltage 25 kV; Frequency control; Inverters; Matrix converters; Rectifiers; AC-AC conversion; Converter Control; Industrial electronics; Matrix converter; Phase control; Traction application;

fLanguage

English

Publisher

ieee

Conference_Titel

ELEKTRO, 2014

Conference_Location

Rajecke Teplice

Print_ISBN

978-1-4799-3720-2

Type

conf

DOI

10.1109/ELEKTRO.2014.6848930

Filename

6848930