Dynamometer test results from the Colorado University low-speed, permanent magnet electric generator

Conference · Fri Sep 01 04:00:00 EDT 1995

OSTI ID:93018

Fuchs, E F ^[1]; Carlin, P W; Muljadi, E B; Fingersh, L J ^[2]

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1. Univ. of Colorado, Boulder, CO (United States). Electrical and Computer Engineering
2. National Renewable Energy Laboratory, Golden, CO (United States). National Wind Technology Center

Under an NREL subcontract the Electrical and Computer Engineering Department of the University of Colorado has designed a 20 kilowatt, twelve pole, permanent magnet, electric generator which can supply 150% of rated power over a speed range from 60 to 120 RPM. The generator was fabricated and assembled by the Denver electric motor manufacturer, Unique Mobility. The generator is being tested on the National Wind Technology Center (NWTC) dynamometer. This dynamometer provides generator speeds from 0 to 150 RPM. Static and steadystate electrical and mechanical generator parameters will be given as well as voltage and efficiency vs speed curves, and winding temperature rise. Preliminary dynamometer results for the complete variable speed electrical system including the AC-DC-AC power electronics will be presented. Also, these results will be examined for factors which must be considered if the prototype design is to be scaled up to a 300 kilowatt size.

• OSTI ID: 93018
• Report Number(s): CONF-950116--; ISBN 0-7918-1294-4
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
DYNAMOMETERS
ELECTRIC GENERATORS
PERFORMANCE TESTING
POWER CONDITIONING CIRCUITS
WIND TURBINES