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| Presentation | 2007-01-26 14:15 Investigation on Mechanism of Radiated Emissions from Fan Unit Model Considering with AC-mains Cable Ran Wang, Nobuo Kuwabara (KIT), Kiyoshi Masui, Hideya Sato (DAIWA INDUSTRIES LTD.)  EMCJ2006-105 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Pulse width modulation (PWM) is used to drive fan units in order to control them precisely. It creates a need to maintain the technology suppressing radiated emissions. Recent study reported that the radiation phenomena could be explained to model the fan and drive unit by metallic planes and rods in frequency range of more than 100MHz. However, the appropriate model estimating the emission level has not been developed less than 100MHz. In this report, we investigate the model estimating the emissions less than 100MHz. The radiation source position was estimated from the radiated electric field distribution at distance of 3m. The result shown that the dominant radiation source placed at the AC-mains cable. Therefore, AC-mains cable was added the previous model and the radiated field were calculated when the radiation source was the common-mode current at the cable between the fan init and the drive unit. The calculation results almost agreed with the measured one. This means that the model can be used to estimate the radiation level. The suppression effect, when the ground between the fan and drive unit was improved, was investigated by the measurement and the calculation based on the model. The results shown that the improvement of ground condition is effective to suppress the radiated emission. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | PWM / Fan drive circuit / AC-mains cable / Radiated emission / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 508, EMCJ2006-105, pp. 39-44, Jan. 2007. | |
| Paper # | EMCJ2006-105 | |
| Date of Issue | 2007-01-19 (EMCJ) | |
| 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 | EMCJ2006-105 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2007-01-26 - 2007-01-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2007-01-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation on Mechanism of Radiated Emissions from Fan Unit Model Considering with AC-mains Cable |
| Sub Title (in English) | |
| Keyword(1) | PWM |
| Keyword(2) | Fan drive circuit |
| Keyword(3) | AC-mains cable |
| Keyword(4) | Radiated emission |
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| Keyword(8) | |
| 1st Author's Name | Ran Wang |
| 1st Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 2nd Author's Name | Nobuo Kuwabara |
| 2nd Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 3rd Author's Name | Kiyoshi Masui |
| 3rd Author's Affiliation | DAIWA INDUSTRIES LTD. (DAIWA INDUSTRIES LTD.) |
| 4th Author's Name | Hideya Sato |
| 4th Author's Affiliation | DAIWA INDUSTRIES LTD. (DAIWA INDUSTRIES LTD.) |
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| Speaker | Author-1 |
| Date Time | 2007-01-26 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2006-105 |
| Volume (vol) | vol.106 |
| Number (no) | no.508 |
| Page | pp.39-44 |
| #Pages | 6 |
| Date of Issue | 2007-01-19 (EMCJ) |
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