Analysis of ground fault currents in isolated and non-isolated charging modules in electric vehicles

Author

Albanna, Ahmad ; Arafat, Md Nayeem ; Gupta, Atul ; Anwar, Mohammad ; Teimor, Mehrdad

Author_Institution

Global Electrification, Gen. Motors, Pontiac, MI, USA

fYear

2015

fDate

14-17 June 2015

Firstpage

1

Lastpage

6

Abstract

The paper compares generic on board charger module (OBCM) topologies with respect to ground fault current detection and interruption. Ground fault current in isolated charging modules is very small due to the galvanic isolation between the input and output sides. In non-isolated charging modules, the paper shows the contributing components of the system to the generation of ground fault current. The ground fault current interrupt circuit is explained and compared in both topologies. Performance and parametric measures are used to compare the two topologies in MATLAB/Simulink.

Keywords

battery chargers; electric vehicles; fault currents; fault diagnosis; OBCM topology; electric vehicle battery charger; galvanic isolation; ground fault current analysis; ground fault current detection; ground fault current generation; ground fault current interrupt circuit; ground fault current interruption; isolated charging module; nonisolated charging module; on board charger module topology; Harmonic analysis; Integrated circuits; Power harmonic filters; Software packages; Vehicles; GFCI; charging modules; ground fault current; isolated converter; non-isolated converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Conference and Expo (ITEC), 2015 IEEE

Conference_Location

Dearborn, MI

Type

conf

DOI

10.1109/ITEC.2015.7165812

Filename

7165812