Comparison of converter topologies for battery-powered high-speed drives considering different cooling conditions and semiconductor materials for ultra light-weight hybrid systems

Author

Horff, Roman ; Bakran, Mark M.

Author_Institution

Dept. of Mechatron., Univ. of Bayreuth, Bayreuth, Germany

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

1

Lastpage

9

Abstract

This paper presents a comparison of two-level and three-level converters for high frequency drives. The maximum output power per chip area is calculated and compared by the Total Harmonic Distortion (THD). A variable DC-link voltage is assumed and it is derived, that the three-level topologies suffer more from an increasing DC-link voltage than the two-level inverter. The influence of the cooling system on the choice of topology is discussed. It is shown that three-level converters do not profit as much as two-level inverter of the benefit from liquid cooling system in comparison to forced-air cooling. Regarding fast switching silicon carbide devices, a calculation shows, that the converter weight can be reduced significantly.

Keywords

battery powered vehicles; invertors; variable speed drives; THD; battery-powered high-speed drives; converter topologies; cooling conditions; fast switching silicon carbide devices; high frequency drives; semiconductor materials; three-level converters; total harmonic distortion; two-level converters; ultra lightweight hybrid systems; variable DC-link voltage; Cooling; Inverters; Silicon carbide; Switching frequency; Switching loss; Topology; Total harmonic distortion; Cooling; Harmonics; High frequency power converter; High power density systems; Silicon Carbide (SiC);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6631792

Filename

6631792