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Paper Abstract and Keywords
Presentation 2024-01-19 14:25
Experimental Verification of Impedance Balance Method for Reducing Radiated Emission of Three-Phase Inverters
Taiki Nishimoto, Yasuhiro Arai (Panasonic Industry) EMCJ2023-97
Abstract (in Japanese) (See Japanese page) 
(in English) This report verifies the effectiveness in reducing radiated emission of three-phase inverters by impedance balance method. In the proposed method, impedance elements are added between the output trace of each phase and the bus trace. Furthermore, connecting output traces mutually with additional impedance elements. Then, CM voltage propagation from transistors to each-phase output terminal can be described with bridge-shaped equivalent circuits. Therefore, applying impedance balance method, we can suppress noise propagation from each transistor to all output terminals simultaneously when the bridge circuits are balanced. Implementing the impedance elements on an evaluation board of the three-phase inverter, we confirmed the CM current reduction by up to 31.5 dB. Furthermore, the radiated emission was verified to be suppressed by up to 22 dB through the measurement in an anechoic chamber.
Keyword (in Japanese) (See Japanese page) 
(in English) Three-Phase Inverter / Impedance Balance / EMC / Common-Mode Noise / Radiated Emission / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 346, EMCJ2023-97, pp. 55-60, Jan. 2024.
Paper # EMCJ2023-97 
Date of Issue 2024-01-12 (EMCJ) 
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)
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Conference Information
Committee EMCJ  
Conference Date 2024-01-19 - 2024-01-19 
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 2024-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Verification of Impedance Balance Method for Reducing Radiated Emission of Three-Phase Inverters 
Sub Title (in English)  
Keyword(1) Three-Phase Inverter  
Keyword(2) Impedance Balance  
Keyword(3) EMC  
Keyword(4) Common-Mode Noise  
Keyword(5) Radiated Emission  
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Keyword(7)  
Keyword(8)  
1st Author's Name Taiki Nishimoto  
1st Author's Affiliation Panasonic Industry Co., Ltd. (Panasonic Industry)
2nd Author's Name Yasuhiro Arai  
2nd Author's Affiliation Panasonic Industry Co., Ltd. (Panasonic Industry)
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Speaker Author-1 
Date Time 2024-01-19 14:25:00 
Presentation Time 20 minutes 
Registration for EMCJ 
Paper # EMCJ2023-97 
Volume (vol) vol.123 
Number (no) no.346 
Page pp.55-60 
#Pages 6 
Date of Issue 2024-01-12 (EMCJ) 

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