Title :
Six pulse bridge converter for rapid constant current charging of megajoule PFNs
Author :
Schofield, G.L. ; Jaitly, N.C. ; Chu, E.Y. ; Elwell, R.
Author_Institution :
Maxwell Lab. Inc., San Diego, CA, USA
Abstract :
Summary form only given. The authors describe how a 4.8 MW transformerless, three-phase, 60 Hz, AC to DC, SCR controlled power converter was recently designed, fabricated and successfully tested at Maxwell Laboratories, Inc. for use in the US Navy ETC (electrothermal-chemical) Gun Technology program. It can provide a maximum of 20 kV output into either a capacitive or resistive load. Power to the converter input is provided by a dedicated 13.8 kV, three-phase 60 Hz, synchronous generator. With a 4 MVA generator, this combination is capable of charging a 4 MJ bank to 15 kV in 2 seconds. The power converter incorporates two 17.5 mm, 300 A, air core current-limiting inductors, one in series with each output connection
Keywords :
AC-DC power convertors; bridge circuits; electrothermal launchers; load (electric); military equipment; power inductors; power supplies to apparatus; pulse generators; pulsed power technology; rectifying circuits; synchronous generators; thyristor convertors; 13.8 kV; 15 kV; 2 s; 20 kV; 300 A; 4 MJ; 4 MVA; 4.8 MW; 60 Hz; air core current-limiting inductors; capacitive load; electrothermal-chemical gun; pulse forming networks; pulsed power supplies; rapid constant current charging; resistive load; six-pulse bridge power converter; synchronous generator; three-phase AC/DC thyristor converter; Bridge circuits; Current limiters; Inductors; Laboratories; Leg; Pulse transformers; Storage area networks; Testing; Thyristors; Voltage;
Conference_Titel :
Power Modulator Symposium, 1996., Twenty-Second International
Conference_Location :
Boca Raton, FL
Print_ISBN :
0-7803-3076-5
DOI :
10.1109/MODSYM.1996.564497
