Research on temperature characteristic of DC-link capacitors applied in electric vehicles

Author

Shumei Cui ; Lei Hu ; Chao Zhang ; Shouliang Han ; Wei Zheng

Author_Institution

Harbin Inst. of Technol., Harbin, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

5

Abstract

Based on the action mechanism of DC-link capacitors applied in electric vehicles (EVs), temperature characteristic of DC-link capacitors is analyzed. In a wide range of temperatures, a performance test is made for two kinds of commonly used DC-link capacitors, electrolytic capacitor and film capacitor. Then a comparative analysis is conducted. According to the established AC circuit model and capacitor temperature rise limiting, the relationship between RMS ripple current and parameters of DC-link capacitors is analyzed. And the influence of temperature characteristic on system is then pointed out. Finally, some kinds of treatment measures are proposed and analyzed.

Keywords

electric vehicles; electrolytic capacitors; thermal analysis; AC circuit model; DC-link capacitors; EV; RMS ripple current; capacitor temperature; electric vehicles; electrolytic capacitor; film capacitor; Capacitance; Capacitors; Films; Integrated circuit modeling; Temperature distribution; Temperature measurement; DC-link Capacitor; Electric Vehicle; Temperature Characteristic;

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.2014.6940992

Filename

6940992