Active Voltage Control enhances overall operating efficiency of traction motor in electric bus

Author

Du Lei ; Fuyuan Yang ; Du Jiaen ; Yao Changsheng ; Yu Ping ; Ye Xiao

Author_Institution

Tsinghua Univ., Beijing, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

4

Abstract

Bus voltage affects the characteristic curve of traction motor, as well as high-efficiency region. This paper discusses if it is possible to improve the motor efficiency by AVC (Active Voltage Control), and if so, to what extent. Based on China Bus Urban Cycle, an 8-meter electric bus is studied via simulation in Matlab/Simulink. And the AVC controller is designed to determine the most efficient bus voltage in every time slot. The comparison of instantaneous motor efficiency is made between AVC and 624V. The results indicate that AVC has potential to enhance overall operating efficiency of traction motor in electric bus: 2.8% improvement of driving efficiency and 0.79% of regenerating efficiency can be achieved.

Keywords

electric vehicles; traction motors; voltage control; AVC; China bus urban cycle; Matlab-Simulink; active voltage control; bus voltage; electric bus; instantaneous motor; traction motor; voltage 624 V; Automatic voltage control; Educational institutions; Permanent magnet motors; Torque; Traction motors; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940787

Filename

6940787