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Variable Speed Constant Frequency (VSCF) Aircraft Electrical Power
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Sector:
Event:
Aerospace Meeting
Language:
English
Abstract
This paper describes the operation, design, performance, and application of high reliability, variable speed constant frequency (VSCF) aircraft electric power generating systems. A high frequency, multi-phase, brushless generator supplies power to a frequency converter which conditions the variable frequency generator output into precision 3-phase, 115/200V, 400 Hz aircraft power, using the cycloconverter principle. Systems have been built with ratings from 20 to 150 kva. For a 75 kva system, the weight to rating ratio is about 1.6 lbs/kva and rated load efficiency is 80%. Predicted MTBF for current systems is in the 2000 to 6000 hour range.
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Authors
Citation
Canfield, E. and Summerford, J., "Variable Speed Constant Frequency (VSCF) Aircraft Electrical Power," SAE Technical Paper 771002, 1977, https://doi.org/10.4271/771002.Also In
References
- Carlson H. G. “VSCF Technology.” Technical Proceedings of General Electric Aircraft Electrical Power Seminar Binghamton, New York May 10-11 1977
- McMurray W. “The Theory and Design of Cycloconverters.” The MIT Press 1972
- Carlson H. G. Wright R. N. “VSCF Aircraft Electrical Power.” IEE 1977 National Aerospace and Electronics Conference May 17-19 1977
- Lafuze D. L. “VSCF Engine Start Capability.” Technical Proceedings of General Electric Aircraft Electrical Power Seminar Binghamton, New York May 10-11 1977