Design and control of a bidirectional triangular modular multilevel DC-DC converter

Author

Filsoof, Kia ; Lehn, Peter

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

fYear

2013

fDate

23-26 June 2013

Firstpage

1

Lastpage

7

Abstract

In this paper, a novel bidirectional modular multi-level dc-dc converter is proposed. The proposed topology, named the Triangular Modular Multilevel dc-dc Converter (TMMC), can achieve equal power sharing among its modules over a broad range of conversion ratios. The proposed control algorithm provides localized control of modules which enhances the converter´s dynamic performance and design flexibility. A 1.1kW experimental implementation of the converter is shown to achieve an efficiency of 96.3% and 98.0% in step-up and step-down modes, respectively. The TMMC also provides multiple fixed voltage nodes which makes it suitable as a multi-input multi-output converter.

Keywords

DC-DC power convertors; TMMC; bidirectional triangular modular multilevel DC-DC converter; conversion ratio; converter dynamic performance; design flexibility; efficiency 96.3 percent; efficiency 98.0 percent; localized control; multiple-fixed voltage node; multiple-input multiple-output converter; power 1.1 kW; power sharing; step-down mode; step-up mode; Capacitors; Inductors; Power measurement; Steady-state; Switches; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Modeling for Power Electronics (COMPEL), 2013 IEEE 14th Workshop on

Conference_Location

Salt Lake City, UT

ISSN

1093-5142

Print_ISBN

978-1-4673-4914-7

Type

conf

DOI

10.1109/COMPEL.2013.6626434

Filename

6626434