Advantages of a variable DC-link voltage by using a DC-DC converter in hybrid-electric vehicles

Author

Schoenen, Timo ; Kunter, Markus S. ; Hennen, Martin D. ; De Doncker, Rik W.

Author_Institution

Inst. for Power Electron. & Electr. Drives, RWTH Aachen Univ., Aachen, Germany

fYear

2010

fDate

1-3 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

In electric and hybrid-electric vehicle applications, power electronic converters are used to couple the traction machine with the battery stack. The simplest topology consists of an inverter between the battery stack and the machine. In an often discussed alternative, a DC-DC converter is used to feed the traction machine with a higher and stable voltage level. This paper deals with the differences which arise in terms of the applied control strategy and identifies operating regions of improved efficiency.

Keywords

DC-DC power convertors; automotive electronics; hybrid electric vehicles; permanent magnet machines; synchronous machines; DC-DC converter; applied control strategy; battery stack; hybrid-electric vehicles; interior permanent magnet synchronous machine; inverter; power electronic converters; traction machine; variable DC-link voltage; Batteries; Converters; Inverters; Support vector machines; Torque; Voltage control; Voltage measurement; DC-DC converter; efficiency; electric vehicle; hybrid vehicle;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE

Conference_Location

Lille

Print_ISBN

978-1-4244-8220-7

Type

conf

DOI

10.1109/VPPC.2010.5729003

Filename

5729003