Optimization of a Microscale, Axial-Flux, Permanent-Magnet Generator

Abstract

This paper presents the design optimization and characterization of a microscale, permanent-magnet (PM) generator, capable of supplying 8 W of DC power to a resistive load at a rotational speed of 305,000 rpm. The generator is a three-phase, axial-flux, PM machine, consisting of a stator with Cu surface windings and a multi-pole SmCo PM rotor. Optimization of the machine geometries have resulted in a 30% improvement in power density over a previously reported machine (at 120,000 rpm). Furthermore, these design improvements in combination with higher rotational speeds has enabled a >7x improvement in total output power and a net power density of 59 W/cu cm.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA465738

Entities

People

  • D. P. Arnold
  • Florian Herrault
  • I. Zana
  • J. H. Lang
  • Jaeheung Park
  • Mark G. Allen
  • P. Galle
  • S. Das

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Gaps
  • Curie Temperature
  • Determinants (Mathematics)
  • Diameters
  • Eddy Currents
  • Fabrication
  • Generators
  • Geometry
  • Magnetic Properties
  • Magnets
  • Microbalances
  • Optimization
  • Permanent Magnet Generators
  • Permanent Magnets
  • Power Converters
  • Power Electronics
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Superconducting Magnet Technology