NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Development of a rotary power transformer and inverter drive for spacecraftMany future satellites and spacecraft with spun and despun configurations will require the transfer of power across rotating interfaces in lieu of slip-rings and/or flexures. This is particularly true of spacecraft that have to demonstrate a long life expectancy. The rotary transformer has the desirable characteristics of high reliability and low noise, which qualify it as a potential replacement for slip rings. Development of a rotary power transformer follows the successful completion of a task to develop rotary signal-level transformers for the Galileo Spacecraft Project. The physical configuration of a rotary power transformer has a significant effect on its magnetic and electrical characteristics and therefore impacts the design of the dc/ac inverter driver. Important characteristics addressed during this development effort include: operating frequency, efficiency, transformer gap size, leakage inductance, and leakage flux. A breadboard inverter and rotary transformer were designed, fabricated and tested.
Document ID
19840047338
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mclyman, W. T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bridgeforth, A. O.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Spacecraft Propulsion And Power
Accession Number
84A30125
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available