NSTX Power Supply Configuration Control Upgrade
Authors: N. Desai, R. Hatcher, C. Neumeyer
Abstract:
The National Spherical Torus Experiment (NSTX)
is in its second decade of operation at PPPL. NSTX has a total
of 15 coil systems (which include the coils, their dedicated
power supplies and associated auxiliary equipment) that create
and control the plasma per the experimental objectives. Each
coil system is individually controllable via the NSTX Power
Supply Real Time Controller (PSRTC) software code written
in C language. The NSTX has great flexibility in both the
configuration of its coil system and in the operating envelope
afforded by the connected power supplies. To ensure proper
operation and to minimize the probability of lost runtime due
to system faults, the project has developed a procedure that
governs system configuration. The Integrated System Test
Procedure (ISTP-001) documents the NSTX machine
parameters, experiment configuration limits, machine
protection settings and device settings.
This paper will describe calculations for the ISTP 001
methodology and system protection settings; record keeping of
the various configuration revisions and the upgrade in
progress to improve readability and calculation capabilities.
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Submitted to: 38th International Conference on Plasma Science & 24th Symposium on Fusion Engineering/ICOPS 2011 SOFE, Chicago, IL, June 26-30, 2011
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Download PPPL-4667 (pdf 462 KB 4 pp)
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