Title :
Fast, transient energy extraction from high frequency AC-alternators for use in electromagnetic launch applications
Author :
Giesselmann, M. ; McHale, B. ; Crawford, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Tech. Univ., Lubbock, TX, USA
Abstract :
This paper describes work towards transient energy extraction from high frequency alternators to drive electromagnetic launchers through intelligent triggering of thyristors/silicon controlled rectifiers (SCRs). The work was done using a 3-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, multi-mega joule 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.
Keywords :
digital control; electric sensing devices; electromagnetic launchers; induction motor drives; machine control; microcontrollers; rectifying circuits; synchronous generators; thyristor convertors; transients; 3-phase level motor-generator; 75 kVA; AC-alternator; DC machine load; SCR; digital control; electromagnetic launcher; induction machine; intelligent triggering; microcontroller; motor drive; sensors; silicon controlled rectifier; synchronous generator; thyristor; transient energy extraction; voltage distortion; Alternators; DC machines; Electromagnetic launching; Electromagnetic transients; Frequency; Machine intelligence; Microcontrollers; Sensor systems; Thyristors; Voltage;
Conference_Titel :
Electromagnetic Launch Technology, 2004. 2004 12th Symposium on
Print_ISBN :
0-7803-8290-0
DOI :
10.1109/ELT.2004.1398070
