Study on bidirectional-charger for electric vehicle applied to power dispatching in smart grid

Fang, Yu; Cao, Songyin; Xie, Yong; Wheeler, Patrick

Abstract

It will be one of the most important content to take the electric vehicle batteries as distributed energy storage units which can accept the power dispatching, and now bidirectional charger is the key power electronic device that has been used to connect power grid to the electric vehicle battery. In this paper, a two-stage bidirectional power converter made up of T-type neutral point clamped (NPC) three-phase three-level (TL) AC/DC and dual active bridge (DAB) DC/DC is studied, And the direct power control strategy is adopted to accept power dispatching from power grid. With high reliability, efficiency and high power quality as the goal, a novel space vector modulation (SVPWM) is proposed to avoid the terminal voltage distortion of bridge legs, and the series-parallel-connection DAB converter is presented to further improve efficiency. Finally, experimental results verify the feasibility of circuit topology and control strategy.

Citation

Fang, Y., Cao, S., Xie, Y., & Wheeler, P. (in press). Study on bidirectional-charger for electric vehicle applied to power dispatching in smart grid.

• Conference Name: 8th International Power Electronics and Motion Control Conference (IPEMC 2016-ECCE Asia)
• End Date: May 25, 2016
• Acceptance Date: Feb 25, 2016
• Online Publication Date: Jul 14, 2016
• Deposit Date: Sep 27, 2016
• Publicly Available Date: Sep 27, 2016
• Peer Reviewed: Peer Reviewed
• Keywords: Electric Vehicle; Bidirectional Charger; T-type Three-level; Converter; Dual Active Bridge Converter
• Public URL: https://nottingham-repository.worktribe.com/output/800983
• Publisher URL: http://ieeexplore.ieee.org/abstract/document/7512726/
• Related Public URLs: http://www.ipemc2016.org/
• Additional Information: Published in: 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia 2016). Piscataway, N.J. : IEEE, 2016. ISBN: 978-1-5090-1211-4. pp. 2709-2713, doi:10.1109/IPEMC.2016.7512726 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.