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400Hz High Speed Static Transfer Switch

Journal Article
ISSN: 1946-3855, e-ISSN: 1946-3901
Published November 11, 2008 by SAE International in United States
400Hz High Speed Static Transfer Switch
Citation: Cooper, R. and Cooper, E., "400Hz High Speed Static Transfer Switch," SAE Int. J. Aerosp. 1(1):946-965, 2009,
Language: English


The objective of this project was to replace electromechanical power line contactors with a Static Transfer Switch (STS) to improve the transfer of electrical power between aircraft generators and decrease required maintenance. The switch requirements include high reliability, lightweight, and high speed (less than 15mS) power transfer. An STS can shorten the bus transfer time to less than the “ride-through” of aircraft electronic loads and therefore have the ability to control and transfer electrical power while maintaining critical mission requirements.
The content of this paper and presentation will discuss the initial problem, the research and development approach, design, and initial testing of the STS.