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Electric vehicle battery performance investigation based on real world current harmonics
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Amamra, Sid-Ali, Tripathy, Yashraj, Barai, Anup, Moore, Andrew D. and Marco, James (2020) Electric vehicle battery performance investigation based on real world current harmonics. Energies, 13 (2). e489. doi:10.3390/en13020489 ISSN 1996-1073.
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Official URL: https://doi.org/10.3390/en13020489
Abstract
Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels. These power subsystems can generate undesired electrical harmonics on the direct current (DC) bus of the powertrain. This may lead to the on-board battery being subjected to DC current superposed with undesirable high- and low- frequency current oscillations, known as ripples. From real-world measurements, significant current harmonics perturbations within the range of 50 Hz to 4 kHz have been observed on the high voltage DC bus of the EV. In the limited literature, investigations into the impact of these harmonics on the degradation of battery systems have been conducted. In these studies, the battery systems were supplied by superposed current signals i.e., DC superposed by a single frequency alternating current (AC). None of these studies considered applying the entire spectrum of the ripple current measured in the real-world scenario, which is focused on in this research. The preliminary results indicate that there is no difference concerning capacity fade or impedance rise between the cells subjected to just DC current and those subjected additionally to a superposed AC ripple current.
| Item Type: | Journal Article | ||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Library of Congress Subject Headings (LCSH): | Electric vehicles -- Batteries, Automobiles -- Power trains, Lithium ion batteries | ||||||
| Journal or Publication Title: | Energies | ||||||
| Publisher: | MDPI | ||||||
| ISSN: | 1996-1073 | ||||||
| Official Date: | 19 January 2020 | ||||||
| Dates: |
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| Volume: | 13 | ||||||
| Number: | 2 | ||||||
| Article Number: | e489 | ||||||
| DOI: | 10.3390/en13020489 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Reuse Statement (publisher, data, author rights): | ** From MDPI via Jisc Publications Router ** History: accepted 17-01-2020; pub-electronic 19-01-2020. ** Licence for this article: https://creativecommons.org/licenses/by/4.0/ | ||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||
| Date of first compliant deposit: | 22 January 2020 | ||||||
| Date of first compliant Open Access: | 22 January 2020 | ||||||
| RIOXX Funder/Project Grant: |
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