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Paper Abstract and Keywords
Presentation 2010-11-12 17:15
Study on Zero-Flux Application for Restraining the Remanence of High-DC-power Electromagnet
Yuan Haiwen, Mi Hanguang, Guo Xin, Liu Yingyi (Beihang Univ.) EMD2010-125
Abstract (in Japanese) (See Japanese page) 
(in English) High-DC-power electromagnet whose coil voltage is 24V or 48V has been wildly used in the lifting equipment and the braking system of construction machinery. In applications, it works on the switching state condition. The armature drives objective as schedule when turn on power and when shut off power, the armature should be released immediately. But in applications, many factors such as material properties, processing technic and design technic result that there is too much remanence left after the power shut off and the armature cannot be released as required. This situation can be very serious in applications of High-DC-power Electromagnet.
Light of above, the paper proposes a new method to restrain the remanence. The method is based on feedback control. A feedback controller is embedded in magnetic circuit of electromagnet. If there is much remanence left when the power of electromagnet shut off, the controller will generate the excitation current which is against the direction of remanence current. The Zero-Flux can be reached based on this method and the armature will be released as requirement. Detail analysis is given in this paper. Necessary simulation and theoretical analysis is done. Then the experimental circuit is designed and some experiment is done to test and verify this method. At last, the method is used in application. The application result indicates that the method restrains the remanence of High-DC-power electromagnet and the armature is released immediately. So the reliability has been greatly improved. Furthermore, the method can be reference in industry applications.
Keyword (in Japanese) (See Japanese page) 
(in English) Zero-Flux / Remanence / Electromagnet / / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 270, EMD2010-125, pp. 243-246, Nov. 2010.
Paper # EMD2010-125 
Date of Issue 2010-11-04 (EMD) 
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 EMD2010-125

Conference Information
Committee EMD  
Conference Date 2010-11-11 - 2010-11-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Xi'an Jiaotong University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IS-EMD2010 (10th International Session in Electro-Mechanical Devices) 
Paper Information
Registration To EMD 
Conference Code 2010-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Zero-Flux Application for Restraining the Remanence of High-DC-power Electromagnet 
Sub Title (in English)  
Keyword(1) Zero-Flux  
Keyword(2) Remanence  
Keyword(3) Electromagnet  
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1st Author's Name Yuan Haiwen  
1st Author's Affiliation Beihang University (Beihang Univ.)
2nd Author's Name Mi Hanguang  
2nd Author's Affiliation Beihang University (Beihang Univ.)
3rd Author's Name Guo Xin  
3rd Author's Affiliation Beihang University (Beihang Univ.)
4th Author's Name Liu Yingyi  
4th Author's Affiliation Beihang University (Beihang Univ.)
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Speaker Author-1 
Date Time 2010-11-12 17:15:00 
Presentation Time 15 minutes 
Registration for EMD 
Paper # EMD2010-125 
Volume (vol) vol.110 
Number (no) no.270 
Page pp.243-246 
#Pages 4 
Date of Issue 2010-11-04 (EMD) 

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