A method for improving HEV motor system efficiency considering battery voltage variation

Author

Kim, Bumsik ; Kwak, Mushin ; Chung, Taehwan ; Lee, Youngkook ; Jung, Jinhwan

Author_Institution

Hyundai-Kia Motors, Hwaseong, South Korea

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

677

Lastpage

682

Abstract

Interior Permanent-magnet Synchronous Motors (IPMSMs) are suitable for Hybrid Electric Vehicle (HEV) due to their high efficiency and torque/power density. Since the torque of a PMSM is determined by the stator currents, stator current control is essential to the torque control. Also, the available torque of a PMSM is dependent on rotational speed and battery voltage (dc-link voltage of the inverter). In this paper, a new current reference generation method is proposed, which can improve the system efficiency with high control accuracy even when the battery voltage varies. The performance of the proposed method is verified by experimental results.

Keywords

battery powered vehicles; electric current control; hybrid electric vehicles; invertors; machine control; permanent magnet motors; stators; synchronous motors; torque control; HEV motor system; IPMSM; battery voltage variation; hybrid electric vehicle; interior permanent-magnet synchronous motor; inverter; stator current control; torque control; torque-power density; Batteries; Generators; Hybrid electric vehicles; Permanent magnet motors; Synchronous motors; Torque; Velocity control; Battery Voltage Variation; Current Reference Generation; Hybrid Electic Vehicle; Permanent-magnet Synchronous Motor;

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.2011.5944639

Filename

5944639