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Analysis and optimization of air-core permanent magnet linear synchronous motors with overlapping concentrated windings for ultra-precision applications

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Abstract

This paper presents the analysis and optimization of air-core permanent magnet linear synchronous motor with overlapping concentrated windings to achieve high thrust density, high thrust per copper losses and low thrust ripple. For the motor design, we adopt equivalent magnetizing current (EMC) method to analyse the magentic field and give analytical formulae for calculation of motor parameters such as no-load back EMF, dynamic force, thrust density and thrust per copper losses. Further, we proposed a multi-objective optimization by genetic algorithm to search for the optimum parameters. The design optimization is verified by 2-D Finite Element analysis (FEA).

Original languageEnglish
Title of host publicationICEMS 2012 - Proceedings
Subtitle of host publication15th International Conference on Electrical Machines and Systems
StatePublished - 2012
Event15th International Conference on Electrical Machines and Systems, ICEMS 2012 - Sapporo, Japan
Duration: 21 Oct 201224 Oct 2012

Publication series

NameICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems

Conference

Conference15th International Conference on Electrical Machines and Systems, ICEMS 2012
Country/TerritoryJapan
CitySapporo
Period21/10/1224/10/12

Keywords

  • air-core permanent magnet linear synchronous motor
  • optimization
  • thrust density
  • thrust per copper losses

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