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Preliminary design development of 100 KW rotary power transfer deviceContactless power transfer devices for transferring electrical power across a rotating spacecraft interface were studied. A power level of 100 KW was of primary interest and the study was limited to alternating current devices. Rotary transformers and rotary capacitors together with the required dc to ac power conditioning electronics were examined. Microwave devices were addressed. The rotary transformer with resonant circuit power conditioning was selected as the most feasible approach. The rotary capacitor would be larger while microwave devices would be less efficient. A design analysis was made of a 100 KW, 20 kHz power transfer device consisting of a rotary transformer, power conditioning electronics, drive mechanism and heat rejection system. The size, weight and efficiency of the device were determined. The characteristics of a baseline slip ring were presented. Aspects of testing the 100 KW power transfer device were examined. The power transfer device is a feasible concept which can be implemented using presently available technologies.
Document ID
19820015521
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Weinberger, S. M.
(General Electric Co. Philadelphia, PA, United States)
Date Acquired
September 4, 2013
Publication Date
March 1, 1981
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
NAS 1.26:165431
NASA-CR-165431
GE-81SDS4215
Accession Number
82N23395
Funding Number(s)
CONTRACT_GRANT: NAS3-22266
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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