Accession Number:

ADA463729

Title:

Magnetic Patterning of Permanent-Magnet Rotors for Microscale Motor/Generators

Descriptive Note:

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s):

• Zana, I.
• Herrault, F.
• Arnold, D. P.
• Allen, M. G.

Report Date:

2005-01-01

Pagination or Media Count:

5.0

Abstract:

We present and characterize a process to pattern magnetic poles on small permanent-magnet PM rotors used in microscale, axial-flux, PM machines. Unlike other previously reported approaches, this approach uses a ferromagnetic magnetizing head MH and an externally applied magnetic field, and it offers the potential for moderate scalability and batch-magnetization of multiple parts. The process is verified using 8-pole annular PM rotors with thicknesses of 500 micrometers and 9.5 mm outer diameters. 3-D magnetostatic, finite element analysis FEA is employed to examine the process and to verify the experimental magnetization patterns.

Descriptors:

• *PERMANENT MAGNET GENERATORS
• MAGNETIC FIELDS
• FINITE ELEMENT ANALYSIS
• MAGNETIZATION
• ELECTRIC GENERATORS

Subject Categories:

• Electric Power Production and Distribution

Distribution Statement:

APPROVED FOR PUBLIC RELEASE