Inverter and Battery Drive Cycle Efficiency Comparisons of CHB and MMSP Traction Inverters for Electric Vehicles
Paper i proceeding, 2019

This papers investigates the performance of several inverter types for electric vehicles. A standard two-level and two seven-level multilevel inverters, a cascaded H-bridge (CHB) and a modular multilevel series parallel (MMSP) inverter, are considered. Based on the AC impedance spectra measured on a single battery cell, the battery pack impedances of the multilevel and two-level inverter systems are modeled. The inverter losses are modeled using the semiconductors' datasheets. Based on the loss models, the inverter and battery efficiency during different driving cycles are assessed. In comparison to the two-level inverter system, the multilevel inverter drivetrains show an increased drivetrain efficiency, despite increased battery losses. The MMSP topology showed the best result. In comparison to the CHB topology, the battery losses were reduced by the MMSP inverter system.

multi-level

converter

modular

MMC

Författare

Alan Kerstein

Chalmers, Mekanik och maritima vetenskaper, Förbränning

Manuel Kuder

Emma Grunditz

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Zeyang Geng

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Evelina Wikner

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Torbjörn Thiringer

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Thomas Weyh

Richard Eckerle

21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)
genua, Italy,

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.23919/EPE.2019.8915147

Mer information

Skapat

2019-12-26