NDLI: Electromagnetic Actuator Design Analysis Using a Two-Stage Optimization Method With Coarse

Content Provider	IEEE Xplore Digital Library
Author	Hey, J. Tat Joo Teo Viet Phuong Bui Guilin Yang Martinez-Botas, R.
Copyright Year	1982
Abstract	Electromagnetic actuators are energy conversion devices that suffer from inefficiencies. The conversion losses generate internal heat, which is undesirable, as it leads to thermal loading on the device. Temperature rise should be limited to enhance the reliability, minimize thermal disturbance, and improve the output performance of the device. This paper presents the application of an optimization method to determine the geometric configuration of a flexure-based linear electromagnetic actuator that maximizes output force per unit of heat generated. A two-stage optimization method is used to search for a global solution, followed by a feasible solution locally using a branch and bound method. The finite element magnetic (fine) model is replaced by an analytical (coarse) model during optimization using an output space mapping technique. An 80% reduction in computation time is achieved by the application of such an approximation technique. The measured output from the new prototype based on the optimal design shows a 45% increase in air gap magnetic flux density, a 40% increase in output force, and a 26% reduction in heat generation when compared with the initial design before application of the optimization method.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	5453
Ending Page	5464
Page Count	12
File Size	2183185
File Format	PDF
ISSN	02780046
Volume Number	61
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational modeling Magnetic cores Atmospheric modeling Optimization Force Magnetic circuits Finite element analysis reduced order systems Electromagnetic devices electromechanical effect genetic algorithm (GA) optimization methods quadratic programming
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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