Inverter and Battery Drive Cycle Efficiency Comparisons of Multilevel and Two-Level Traction Inverters for Battery Electric Vehicles
Paper i proceeding, 2021

This paper investigates the drive cycle performance of different multilevel and two-level inverters. For the multilevel inverters, a cascaded H-bridge (CHB), a modular multilevel series parallel (MMSP) and a battery modular multilevel management (BM3) inverter are considered. The inverter and battery efficiency during the WLTP-driving cycle are estimated based on loss models. The battery loss model is derived from an electrochemical impedance spectroscopy of a cylindrical 18650 Li-ion battery cell. The inverter losses are modeled using the semiconductors' data sheets and a thermal equivalent circuit. In comparison to the two-level inverter system, the CHB and the MMSP inverter drivetrains show an increased inverter efficiency, despite increased battery losses. In contrast to the CHB and the BM3 topologies, the MMSP inverter shows less battery losses. The BM3 inverter shows acceptable drive cycle efficiency while having the lowest inverter costs.

Switching losses

BM3

Battery

Inverter

BEV

Multilevel converter

IGBT

Efficiency

CHB

Conduction losses

Cascaded

H-bridge

Electric vehicle

MOSFET

Författare

Nina Sorokina

Universität Der Bundeswehr München

Julian Estaller

Universität Der Bundeswehr München

Anton Kersten

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Johannes Buberger

Universität Der Bundeswehr München

Manuel Kuder

Universität Der Bundeswehr München

Torbjörn Thiringer

Chalmers, Elektroteknik, Elkraftteknik, Elmaskiner och kraftelektronik

Richard Eckerle

Universität Der Bundeswehr München

Thomas Weyh

Universität Der Bundeswehr München

21st IEEE International Conference on Environment and Electrical Engineering and 2021 5th IEEE Industrial and Commercial Power System Europe, EEEIC / I and CPS Europe 2021 - Proceedings


9781665436120 (ISBN)

21st IEEE International Conference on Environment and Electrical Engineering and 2021 5th IEEE Industrial and Commercial Power System Europe, EEEIC / I and CPS Europe 2021
Bari, Italy,

Ämneskategorier

Annan kemiteknik

Annan samhällsbyggnadsteknik

Annan elektroteknik och elektronik

DOI

10.1109/EEEIC/ICPSEurope51590.2021.9584705

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Senast uppdaterat

2022-03-29