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Subotic, I, Bodo, N and Levi, E (2015) An EV Drive-Train With Integrated Fast Charging Capability. IEEE TRANSACTIONS ON POWER ELECTRONICS, 31 (2). pp. 1461-1471. ISSN 0885-8993
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Abstract
This paper proposes a new class of on-board chargers for electric vehicles (EVs). Instead of being placed on-board as a separate unit, the three-phase (fast) chargers reutilize the existing components in EVs, which are already used for the propulsion. These are primarily the inverter and the machine, which however have to be multiphase (with more than three phases). The concept is valid for all multiphase propulsion drives with a prime number of phases higher than three and a single neutral point in motoring and is illustrated in detail for the five-phase inverter/five-phase machine configuration. During the charging mode, electromagnetic torque is not produced in the machine so that the rotor does not require mechanical locking. Hardware reconfiguration between propulsion and fast charging is required, but it is achieved with only two switches, which are the only two nonintegrated elements. The integrated topology is explained in this paper, together with the control scheme, and extension from five phases to higher phase numbers is illustrated using the seven-phase system as an example. Finally, the propulsion-mode operation with complete suppression of low-order harmonics, which map into the second plane, is achieved for the five-phase machine. Experimental verification of theoretical results and proposed control is provided for both charging and vehicle-to-grid mode of operation, as well as for propulsion.
| Item Type: | Article |
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| 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 & Electrical Engineering (merged with Engineering 10 Aug 20) |
| Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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| Date Deposited: | 19 Nov 2015 09:40 |
| Last Modified: | 04 Sep 2021 13:48 |
| DOI or ID number: | 10.1109/TPEL.2015.2424592 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/2357 |
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