Modelling, simulation and analysis of a Modular Multilevel Converter for medium voltage applications

Author

Rohner, Steffen ; Bernet, Steffen ; Hiller, Marc ; Sommer, Rainer

Author_Institution

Dresden Univ. of Technol., Dresden, Germany

fYear

2010

fDate

14-17 March 2010

Firstpage

775

Lastpage

782

Abstract

The Modular Multilevel Converter (M2C) is an emerging multilevel converter for HVDC and FACTS as well as for future AC-fed traction vehicles or medium voltage drives (MVD). A suitable converter model of the Modular Multilevel Converter (M2C) is presented. A 7.2 kV, 7.5 MVA converter is taken as an example to analyze characteristic waveforms of the converter. The cause of the circulating currents - a phenomenon unique to this topology - is investigated. Furthermore, particular attention is paid to the current distribution in the converter cells for characteristic load phase angles.

Keywords

HVDC power convertors; flexible AC transmission systems; traction; AC-fed traction vehicles; FACTS; HVDC; apparent power 7.5 kVA; medium voltage applications; medium voltage drives; modular multilevel converter; voltage 7.2 kV; Analytical models; Automotive electronics; Capacitors; HVDC transmission; Medium voltage; Power conversion; Pulse width modulation; Pulse width modulation converters; Switching converters; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology (ICIT), 2010 IEEE International Conference on

Conference_Location

Vi a del Mar

Print_ISBN

978-1-4244-5695-6

Electronic_ISBN

978-1-4244-5696-3

Type

conf

DOI

10.1109/ICIT.2010.5472634

Filename

5472634