NSTX-U Digital Coil Protection System Software Design
Authors: Keith G. Erickson, Gregory J. Tchilinguirian, Ronald E. Hatcher, William M. Davis
Abstract:
The National Spherical Torus Experiment (NSTX)
currently uses a collection of analog signal processing solutions
for coil protection. Part of the NSTX Upgrade (NSTX-U) entails
replacing these analog systems with a software solution running
on a conventional computing platform. The new Digital Coil
Protection System (DCPS) will replace the old systems entirely,
while also providing an extensible framework that allows adding
new functionality as desired.
The development of the DCPS was a multi-discipline
engineering effort. The fact that long-trusted yet presentlyinadequate
protection mechanisms were being replaced with a
first-of-a-kind system at NSTX-U has led to a carefully crafted,
full-featured software design. Real-time Concurrent RedHawk
Linux provides the deterministic environment in which the
software runs, and the software architecture follows a UML
design with industry standard patterns.
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Submitted to: SOFE 2013 Proeedings (June 0213) 25th Symposium on Fusion Engineering, San Francisdco, CA (June 10-14, 2013)
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Download PPPL-4904 (pdf 1.20 MB 6 pp)
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