A Single- and Three-Phase Grid Compatible Converter for Electric Vehicle On-Board Chargers

Zhao, Hui; Shen, Yanfeng; Ying, Wucheng; Ghosh, Saikat Subhra; Ahmed, Mohammad Rishad; Long, Teng

Abstract

This article proposes a voltage-source converter for an on-board electric vehicle charger, which is compatible with both the single- and three-phase (1-? and 3-?) grids. The classic 3-? active ac-dc rectifier circuit is used for both the 1-? and 3-? connections, but a new control scheme and LCL filter are designed to address the double-line frequency power pulsation issue caused by a 1-? grid without using bulky dc capacitors. The third leg of the circuit is utilized to control the power pulsation in conjunction with stored energy in the LCL filter between the grid and charger rectifier. Neither additional active nor passive components are required. For the 3-? connection, the rectifier is under balanced operation; when connected with the 1-? grid, all three legs are controlled cooperatively as a 3-? rectifier but under unbalanced operation to recreate the 1-? voltage. Hence, advantages from the 3-? rectifier, such as space vector pulsewidth modulation and Y/? transformation, can be utilized to increase utilization of dc-link voltage and filter capacitance, respectively. The operation principle, control, and LCL filter design are reported and validated by both simulation and experiments of a 3-kW porotype.

Citation

Zhao, H., Shen, Y., Ying, W., Ghosh, S. S., Ahmed, M. R., & Long, T. (2020). A Single- and Three-Phase Grid Compatible Converter for Electric Vehicle On-Board Chargers. IEEE Transactions on Power Electronics, 35(7), 7545-7562. https://doi.org/10.1109/tpel.2019.2956653

• Journal Article Type: Article
• Acceptance Date: Oct 15, 2019
• Online Publication Date: Nov 28, 2019
• Publication Date: 2020-07
• Deposit Date: May 12, 2020
• Publicly Available Date: May 13, 2020
• Journal: IEEE Transactions on Power Electronics
• Print ISSN: 0885-8993
• Electronic ISSN: 1941-0107
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 35
• Issue: 7
• Pages: 7545-7562
• DOI: https://doi.org/10.1109/tpel.2019.2956653
• Keywords: Electrical and Electronic Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/4424142
• Publisher URL: https://ieeexplore-ieee-org.ezproxy.nottingham.ac.uk/document/8917568
• Additional Information: © 2019 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.