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Single-Phase On-Board Integrated Battery Chargers for EVs Based on Multiphase Machines

Subotic, I and Bodo, N and Levi, E (2016) Single-Phase On-Board Integrated Battery Chargers for EVs Based on Multiphase Machines. IEEE TRANSACTIONS ON POWER ELECTRONICS, 31 (9). pp. 6511-6523. ISSN 0885-8993

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Abstract

The paper considers integration of multiphase (more than three phases) machines and converters into a single-phase charging process of electric vehicles (EVs) and, thus, complements recently introduced fast charging solutions for the studied phase numbers. One entirely novel topology, employing a five-phase machine, is introduced and assessed jointly with three other topologies that use an asymmetrical nine-phase machine, an asymmetrical six-phase machine, and a symmetrical six-phase machine. In all topologies, both charging and vehicle-to-grid (V2G) mode are viable. Moreover, all are capable of unity power factor operation. A torque is not produced in machines during charging/V2G process so that mechanical locking is not required. Hardware reconfiguration between propulsion and charging/V2G mode is either not required or minimized by using a single switch. Theoretical analysis of operating principles is given, and a control scheme, applicable to all topologies and which includes current balancing and interleaving strategy, is developed. Finally, operation of all topologies is compared by means of experiments in both charging and V2G mode, with a discussion of influence of current balancing and interleaving strategy on the overall performance.

Item Type: Article
Additional Information: (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works
Uncontrolled Keywords: 0906 Electrical And Electronic Engineering
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics and Electrical Engineering
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Date Deposited: 19 May 2016 12:01
Last Modified: 07 Nov 2016 16:31
DOI or Identification number: 10.1109/TPEL.2015.2504400
URI: http://researchonline.ljmu.ac.uk/id/eprint/3626

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