Exponential Modular Multilevel Converter for Low Voltage Applications
Paper i proceeding, 2019

This paper presents the structure and control of a single phase Exponential Modular Multilevel Converter (EMMC), which works as a bidirectional AC/DC converter. In addition to the main H-bridge converter, it uses series connected H-bridges with DC link capacitors. The nominal voltage rating of the capacitors is increased with each module by factor of two. In this manner, the number of output voltage levels exponentially increases with the number of series connected H-bridges. By using low-voltage MOSFETs it is possible to achieve a very high efficiency, especially at partial loading. The high number of voltage levels reduces the output voltage THD, while using a low switching frequency. Thus, the required grid filter size can be substantially reduced. Furthermore, the additional capacitor modules increase the nominal output voltage at the AC side, so that the flow of the active and reactive power can be dynamically adjusted. Therefore, the EMMC could be used, for instance, as a vehicle charger directly connected to the grid.

Exponential Modular Multi-level Converter

H-bridge

Multi-level inverter

dSPACE

Electric vehicle

Cascaded

Car Charger

MOSFET

Multilevel system

Författare

Manuel Kuder

Bundeswehrs universitet

Anton Kersten

Chalmers, Elektroteknik, Elkraftteknik

Lukas Bergmann

Technische Universität München

Richard Eckerle

Florian Helling

Bundeswehrs universitet

Thomas Weyh

Bundeswehrs universitet

2019 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe

1-11 19191782

21st European Conference on Power Electronics and Applications (EPE ECCE Europe)
Genova, Italy,

Förlust- och EMI-reduktion i elektrifierat fordon via användande av multinivåomriktare

Energimyndigheten (44807-1), 2017-07-01 -- 2021-12-31.

Styrkeområden

Transport

Energi

Ämneskategorier

Elektroteknik och elektronik

Energisystem

Reglerteknik

Signalbehandling

Annan elektroteknik och elektronik

DOI

10.23919/EPE.2019.8915156

Mer information

Senast uppdaterat

2024-01-03