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| Presentation | 2021-07-20 09:30 Independent Controlled Hot-Plug Switches for Parallel Operation of Reuse Battery Strings Kazuo Takehara, Fumiaki Nakao (NExTeS), Kimihiro Nishijima, Eiji Sakai (SOJO UNIV.)  EE2021-10 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The series strings of reused battery cells connected in parallel have different available voltage ranges due to the imbalance between the SoC (State of Charge) and SoH (State of Health) of these cells. Therefore, the utilization capacity of this battery system is limited due to overcharge and over discharge protection of any one of all cells. This paper proposes hot-plug switches to solve this problem. The series battery strings are connected in parallel via these switches and are controlled by the state of the battery cells monitored using the BMS (Battery Management System). Experiments have shown that the utilization efficiency of the reused battery system is improved. The proposed switches allow batteries to be hot-swapped without inrush current into the DC bus, and a reliable and redundant power storage system can be constructed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | reuse battery / hot-plug switches / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 124, EE2021-10, pp. 16-20, July 2021. | |
| Paper # | EE2021-10 | |
| Date of Issue | 2021-07-12 (EE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EE2021-10 |
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| Conference Information | |
| Committee | EE IEE-SPC |
| Conference Date | 2021-07-19 - 2021-07-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EE |
| Conference Code | 2021-07-EE-SPC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Independent Controlled Hot-Plug Switches for Parallel Operation of Reuse Battery Strings |
| Sub Title (in English) | |
| Keyword(1) | reuse battery |
| Keyword(2) | hot-plug switches |
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| 1st Author's Name | Kazuo Takehara |
| 1st Author's Affiliation | NExT-e Solutions Inc. (NExTeS) |
| 2nd Author's Name | Fumiaki Nakao |
| 2nd Author's Affiliation | NExT-e Solutions Inc. (NExTeS) |
| 3rd Author's Name | Kimihiro Nishijima |
| 3rd Author's Affiliation | SOJO UNIVERSITY (SOJO UNIV.) |
| 4th Author's Name | Eiji Sakai |
| 4th Author's Affiliation | SOJO UNIVERSITY (SOJO UNIV.) |
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| Speaker | Author-1 |
| Date Time | 2021-07-20 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | EE |
| Paper # | EE2021-10 |
| Volume (vol) | vol.121 |
| Number (no) | no.124 |
| Page | pp.16-20 |
| #Pages | 5 |
| Date of Issue | 2021-07-12 (EE) |
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