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| Presentation | 2010-07-29 13:00 Charge-Discharge Characteristics of Telecommunication System with Large-scale Nickel Metal Hydride Batteries Keita Takahashi, Akihiro Miyasaka, Keiichi Saito, Takahisa Shodai (NTT)  EE2010-5 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have developed an 80-kWh-class telecommunication backup systems using 95-Ah large-scale nickel metalhydride batteries to reduce the footprint comparison with conventional lead-acid batteries. The system which output is 400Abackup time is 3hours consists of 20 series in parallel of 40 nickel metal hydride cells, chargers, dischargers, and an electroniccontrol unit. The electroniccontrol unit monitors and controls the system and reports the state of batteries and errors to the monitoring sites. A simultaneous charge of all batteries and a constant-power discharge was performed very well. The backup systems is very reliable. Compared with lead-acid batteries, The backup systems can reduce 40% occupied floor space. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Ni-MH battery / Backup system / Battery / Large capacity / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 151, EE2010-5, pp. 1-5, July 2010. | |
| Paper # | EE2010-5 | |
| Date of Issue | 2010-07-22 (EE) | |
| ISSN | Print edition: ISSN 0913-5685 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 | EE2010-5 |
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| Conference Information | |
| Committee | EE IEE-SPC |
| Conference Date | 2010-07-29 - 2010-07-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kochi National College of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EE |
| Conference Code | 2010-07-EE-SPC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Charge-Discharge Characteristics of Telecommunication System with Large-scale Nickel Metal Hydride Batteries |
| Sub Title (in English) | |
| Keyword(1) | Ni-MH battery |
| Keyword(2) | Backup system |
| Keyword(3) | Battery |
| Keyword(4) | Large capacity |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Keita Takahashi |
| 1st Author's Affiliation | NTT Energy and environment systems laboratories (NTT) |
| 2nd Author's Name | Akihiro Miyasaka |
| 2nd Author's Affiliation | NTT Energy and environment systems laboratories (NTT) |
| 3rd Author's Name | Keiichi Saito |
| 3rd Author's Affiliation | NTT Energy and environment systems laboratories (NTT) |
| 4th Author's Name | Takahisa Shodai |
| 4th Author's Affiliation | NTT Energy and environment systems laboratories (NTT) |
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| Speaker | 1 |
| Date Time | 2010-07-29 13:00:00 |
| Presentation Time | 25 |
| Registration for | EE |
| Paper # | IEICE-EE2010-5 |
| Volume (vol) | IEICE-110 |
| Number (no) | no.151 |
| Page | pp.1-5 |
| #Pages | IEICE-5 |
| Date of Issue | IEICE-EE-2010-07-22 |
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