Comparing Various PM Synchronous Generators: A Feasible Solution for High-Power, Off-Highway, Series Hybrid, Electric Traction Applications

This article features the design and comparison of different disc-type axial flux permanent magnet (AFPM) generators for a Caterpillar D7E track-type tractor (TTT) electric drive model. For the given electrical and mechanical specifications, the design of several feasible generators with multiple stators and rotors are completed and, in terms of power density, torque density, loss distribution, efficiency, heat dissipation, volume, inertia ,and weight, are compared with a conventional permanent magnet (PM) generator. Also accomplished to finalize the designs are electromagnetic, mechanical, and thermal analyses. The benefits of axial gap PM generators over radial gap generators for a hybrid electric traction application are revealed by the results.


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  • Accession Number: 01520669
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 21 2014 4:10PM