Rapid analytical optimization of eddy current shield thickness for associated loss minimization in electrical machines

Manoj R. Shah, Sang Bin Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

A copper or another high conductivity shield is often used in solid rotor machines for reducing armature reaction space and time harmonic induced surface eddy current losses in the rotor. Since finite element simulations can make the design process very time consuming and complicated, an analytical model for calculating the surface losses is derived in this paper. A set of equations is derived based on Maxwell's equations for a general case and applied to a solid rotor synchronous machine. The simulation results show that the model can serve as an effective screening tool for determining the optimal shield thickness for minimizing the surface losses, especially for high speed machines operating in conjunction with power electronic converters.

Original languageEnglish
Title of host publication2005 IEEE International Conference on Electric Machines and Drives
Pages1304-1310
Number of pages7
Publication statusPublished - 2005 Dec 1
Event2005 IEEE International Conference on Electric Machines and Drives - San Antonio, TX, United States
Duration: 2005 May 152005 May 15

Other

Other2005 IEEE International Conference on Electric Machines and Drives
CountryUnited States
CitySan Antonio, TX
Period05/5/1505/5/15

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Keywords

  • Eddy Currents
  • Rotor Shield
  • Shield thickness optimization
  • Surface Losses

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Shah, M. R., & Lee, S. B. (2005). Rapid analytical optimization of eddy current shield thickness for associated loss minimization in electrical machines. In 2005 IEEE International Conference on Electric Machines and Drives (pp. 1304-1310). [1531509]