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Development of a high-efficiency motor/generator for flywheel energy storageThis study addresses the design changes and extensions necessary to construct and test a working prototype of a motor/generator for a magnetically suspended flywheel energy storage system. The brushless motor controller for the motor was specified and the electronic commutation arrangement designed. The laminations were redesigned and fabricated using laser machining. Flux density measurements were made and the results used to redesign the armature windings. A test rig was designed and built, and the motor/generator was installed and speed tested to 9000 rpm. Experimental methods of obtaining the machine voltage and torque constants Kv and Kt, obtaining the useful air-gap flux density, and characterizing the motor and other system components are described. The measured Kv and Kt were approximately 40 percent greater than predicted by theory and initial experiment.
Document ID
19920068132
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lashley, Christopher
(Maryland, University; Fare, Inc., College Park, United States)
Anand, Dave K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kirk, James A.
(Maryland, University College Park, United States)
Zmood, Ronald B.
(Royal Melbourne Institute of Technology Australia)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: IECEC ''91: Intersociety Energy Conversion Engineering Conference
Location: Boston, MA
Country: United States
Start Date: August 4, 1991
End Date: August 9, 1991
Accession Number
92A50756
Distribution Limits
Public
Copyright
Other

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