Title :
Upgrading the TFTR Transrex power supplies
Author :
Lawson, J.E. ; Marsala, R. ; Ramakrishnan, S. ; Zhao, X. ; Sichta, P.
Author_Institution :
Princeton Plasma Phys. Lab., Princeton, NJ, USA
Abstract :
In order to provide improved and expanded experimental capabilities, the existing Transrex power supplies at PPPL are to be upgraded and modernized. Each of the 39 power supplies consists of two six pulse silicon controlled rectifier sections forming a twelve pulse power supply. The first modification is to split each supply into two independent six pulse supplies by replacing the existing obsolete twelve pulse firing generator with two commercially available six pulse firing generators. The second change replaces the existing control link with a faster system, with greater capacity, which will allow for independent control of all 78 power supply sections. The third change replaces the existing Computer Automated Measurement and Control (CAMAC) based fault detector with an Experimental Physics and Industrial Control System (EPICS) compatible unit, eliminating the obsolete CAMAC modules. Finally the remaining relay logic and interfaces to the ¿Hardwired Control System¿ will be replaces with a Programmable Logic Controller (PLC).
Keywords :
CAMAC; Tokamak devices; control engineering computing; elemental semiconductors; fusion reactor instrumentation; nuclear engineering computing; physical instrumentation control; power supplies to apparatus; programmable logic devices; rectifiers; silicon; CAMAC; Computer Automated Measurement and Control; Experimental Physics and Industrial Control System; TFTR Transrex power supplies; Tokamak Fusion Test Reactor; fault detector; hardwired control system; programmable logic controller; pulse firing generators; silicon controlled rectifier sections; Automatic control; CAMAC; Control systems; Fault detection; Physics; Power supplies; Programmable control; Pulse generation; Pulsed power supplies; Thyristors; CAMAC; EPICS; power supply;
Conference_Titel :
Fusion Engineering, 2009. SOFE 2009. 23rd IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2635-5
Electronic_ISBN :
978-1-4244-2636-2
DOI :
10.1109/FUSION.2009.5226392
