The impact of bidirectional DC-DC converter on the inverter operation and battery current in hybrid electric vehicles

Author

Bai, Hua ; Mi, Chris

Author_Institution

Dept. of Electr. & Comput. Eng., Kettering Univ., Flint, MI, USA

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

1013

Lastpage

1015

Abstract

The bidirectional DC-DC converter in a HEV is also some times called a power management converter, or an energy management converter, or boost DC-DC converter. This DC-DC converter is a high-power converter that links the high voltage battery (HV) at a lower voltage with the high voltage DC bus. The typical voltage of a battery pack is designed at 300 to 400V. The best operating voltage for a motor and inverter is around 600V. Therefore, this converter can be used to match the voltages of the battery system and the motor system. Other functions of this DC-DC converter include optimizing the operation of the powertrain system, reducing ripple current in the battery, and maintaining DC link voltage, hence, high power operation of the powertrain.

Keywords

DC-DC power convertors; energy management systems; hybrid electric vehicles; invertors; power system management; DC link voltage; HEV; battery current; battery system; bidirectional DC-DC converter; boost DC-DC converter; energy management converter; high-power converter; hybrid electric vehicles; inverter operation; motor system; power management converter; powertrain system; ripple current; voltage 300 V to 400 V; Batteries; Capacitors; Hybrid electric vehicles; Impedance; Inverters; Switches; Torque; DC-DC converter; DC-bus; Power Electronics; battery; energy management; power management;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944686

Filename

5944686