Scheduled System Maintenance:
On Wednesday, July 29th, IEEE Xplore will undergo scheduled maintenance from 7:00-9:00 AM ET (11:00-13:00 UTC). During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Comparative evaluation of DC-link capacitors for electric vehicle application

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Wen, H. ; Dept. of Electr. Power Eng., Masdar Inst. of Sci. & Technol., Abu Dhabi, United Arab Emirates ; Xiao, W. ; Xuhui Wen

In electric vehicle (EV) drive systems, sizing and selection of DC link capacitors involve tradeoffs among system performance including lifetime, reliability, cost, and power density. This paper contributes a comprehensive and comparative study on the DC-link capacitor applications and evaluations to meet the above requirements. The research starts with dynamic modeling of the capacitor equivalent series resistance (ESR) and related ripple current as a function of capacitor type, modulation strategy and load power factor. The analysis considers the facts of capacitor power loss, core temperature, lifetime, and the battery ripple current limit, which are critical for EV applications. The proposed design scheme using film in places of electrolytic capacitors significantly reduces the capacitor size and improves drive system power density from 2.99kW/L to 13.3kW/L without sacrificing system performance. The applications and performance of electrolytic capacitors and film capacitors are experimentally compared and evaluated on a practical 80kW permanent-magnet motor drive system.

Published in:

Industrial Electronics (ISIE), 2012 IEEE International Symposium on

Date of Conference:

28-31 May 2012