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Title: Post-assembly magnetization of a 100 kW high speed permanent magnet rotor

A post-assembly magnetizing fixture has been designed and successfully used to magnetize the rotor of a 100 kW high speed permanent magnet synchronous motor. The rotor is a solid cylinder with outer diameter of 80 mm and total length of 515 mm. The permanent magnet material is samarium-cobalt (Sm{sub 2}Co{sub 17}) with saturation magnetizing field of 6 T. The mechanical stability of the magnetizing fixture has been studied as well as the general design methodology. The magnetizing coil is subdivided in order to reduce the electromagnetic force, and the coils are separately reinforced in different ways. The electromagnetic and structural optimization is performed by finite element analysis and verified by experiments.
Authors:
;  [1] ;  [1] ;  [2]
  1. Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan (China)
  2. (China)
Publication Date:
OSTI Identifier:
22392421
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; COBALT; CYLINDERS; DESIGN; FINITE ELEMENT METHOD; LENGTH; MAGNETIZATION; MOTORS; OPTIMIZATION; PERMANENT MAGNETS; ROTORS; SAMARIUM; SATURATION; STABILITY; VELOCITY