An Assessment of Additively Manufactured Bonded Permanent Magnets for a Distributed Wind Generator

Hannes Labuschagne, Latha Sethuraman, Tod Hanley, Parans Paranthaman, Lee Jay Fingersh

Research output: NRELPresentation

Abstract

In this paper, we examine and compare the performance of a generator design optimized using additively manufactured NdFeB-SmFeN in nylon-polymer-bonded permanent magnets (PMs) against a generator design with conventional NdFeB sintered PMs. To realize this, a commercially available 15-kW wind generator's rotor is re-optimized using both additively manufactured and sintered NdFeB magnets using simple geometric parameterization that allowed for two specific magnet shapes, namely, arc-shaped and crown-shaped designs. Results showed that for a similar generator performance, the designs with additively manufactured bonded PMs are more cost-competitive in terms of the estimated PM material cost and also have negligible eddy current magnet losses.
Original languageAmerican English
Number of pages26
StatePublished - 2023

Publication series

NamePresented at the 2023 International Electric Machines and Drives Conference (IEMDC 2023), 15-18 May 2023, San Francisco, California

NREL Publication Number

  • NREL/PR-5000-86192

Keywords

  • additive manufacturing
  • permanent magnet
  • wind energy
  • wind generator

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