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Fast, transient energy extraction from high-frequency AC alternators for use in electromagnetic launch applications

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3 Author(s)
M. Giesselmann ; Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA ; B. McHale ; M. Crawford

This paper describes work toward transient energy extraction from high-frequency alternators to drive electromagnetic launchers through intelligent triggering of thyristors or silicon controlled rectifiers (SCR). The work was done using a three-phase, 75 kVA level motor-generator set with a dc machine acting as the load. This system serves as a scale model to develop control techniques for full-scale, multimegajoule applications. With the use of a microcontroller and advanced sensors, the system is able to maintain synchronization of the SCR converter with the generator voltage despite dynamically changing frequency and voltage distortion.

Published in:

IEEE Transactions on Magnetics  (Volume:41 ,  Issue: 1 )