NDLI: Fields and Inductances of the Sectioned Permanent-Magnet Synchronous Linear Machine Used in the EMALS

Content Provider	IEEE Xplore Digital Library
Author	Li Liyi Junjie Hong Zhang Lu Liu Ying Yang Song Liu Rizhong Li Xiaopeng
Copyright Year	1973
Abstract	Some intriguing advantages of permanent-magnet linear synchronous machines (PMLSMs), such as simple structure, high thrust, high efficiency, ease of maintenance, and controller feedback, make it possible to take the place of steam catapults in the future. The conventional PMLSM is renowned for its simple structure and high efficiency, whereby the high reactive power resulted from great leakage inductances during the long stator. Thus, great concern is paid to the section structure of the PMLSM. A sectioned permanent-magnet linear synchronous machine (SPMLSM) used in the EMALS is introduced in this paper, whose stator core is continuous but the armature winding is divided into two sectioned parts. First, the electromagnetic fields of the SPMLSM are investigated analytically. Then, the fields are computed by the finite-element method (FEM) and measured experimentally. Not only are the self-inductances and mutual inductances in one section studied but also the mutual inductances between the two sections. These inductances are then calculated by the FEM and measured experimentally. Good correlation among the results was obtained by these three methods.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	87
Ending Page	93
Page Count	7
File Size	641638
File Format	PDF
ISSN	00933813
Volume Number	39
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synchronous machines Stator cores Linear feedback control systems Reactive power Stator windings Machine windings Electromagnetic fields Electromagnetic analysis Finite element methods Electromagnetic measurements self-inductance Finite-element method (FEM) mutual inductance section sectioned permanent-magnet linear synchronous machine (SPMLSM)
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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