Title :
Control units for APS power supplies
Author :
Despe, O.D. ; Saunders, C. ; McGhee, D.G.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
The Advanced Photon Source (APS) accelerator facility is made up of five major subsystems in addition to the linac: the positron accumulator ring (PAR), low energy transport (LET), booster synchrotron (SYNCH), high energy transport (HET), and the storage ring (SR). Each subsystem has multiple magnet and power supply combinations, some requiring multiple modes of operation. These magnet and power supply combinations are computer controlled and monitored. The power supply control unit (PSCU) is the first layer of hardware and software directly above the power supply itself and is described in this paper. The description includes the basic philosophy for each mode of operation and how it influences the topology and means of implementing control. The design of the analog reference blocks (ARBs) influenced the design of other custom functions as well as the feedback controls for vibration and other dynamic corrections. The command set supported by the PSCU is discussed
Keywords :
computerised control; digital-analogue conversion; electron accelerators; feedback; local area networks; physical instrumentation control; power supplies to apparatus; storage rings; APS; Advanced Photon Source; analog reference blocks; feedback controls; hardware; power supplies; power supply control unit; software; Computerized monitoring; Feedback control; Hardware; Linear particle accelerator; Positrons; Power supplies; Storage rings; Strontium; Synchrotrons; Topology;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309157
