Designing a prototype of the ITER pulse scheduling system

Yamamoto, T.; Yonekawa, I.; Ohta, Kazuya; Hosoyama, H.; Hashimoto, Yasunori; Wallander, Anders; Winter, A.; Sugie, Toshiharu; Kusama, Y.; Kawano, Y.; Yoshino, R.

doi:10.1016/j.fusengdes.2012.08.005

Cited by 3 publications

(2 citation statements)

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“…Configuring a control environment like that of ASDEX Upgrade is a process and cannot be conceived as "downloading a global configuration data structure" (pulse schedule [6] or experiment program [5]) to the plant. With our flexible experimentation scheme, [9] a better approach is to allow plant systems to (pre)configure themselves from proprietary datastructures and according to own time schedules, guaranteeing resources to a pulse or a series of pulses.…”

Section: Resultsmentioning

confidence: 99%

“…At AUG, the configuration of the control environment is not done from a single pulse configuration description ("pulse type" in JET [4], "experiment program" in Wendelstein-7X [5], or "pulse schedule" in ITER [6]) but implemented as a staged process based on separately managed configuration items: Plant systems are preconfigured with "basic settings"; i.e. specific plant characteristics and operation limits compatible with the pulse goals [7].…”

Section: Introductionmentioning

confidence: 99%

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The ASDEX Upgrade Parameter Server

Neu

Cole²,

Gräter

et al. 2015

Fusion Engineering and Design

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Concepts for the configuration of plant systems and plasma control of modern devices such as ITER and W7-X are based on global data structures, or "pulse schedules" or "experiment programs", which specify all physics characteristics (waveforms for controlled actuators and plasma quantities) and all technical characteristics of the plant systems (diagnostics and actuators operation settings) for a planned pulse. At ASDEX Upgrade we use different approach. We observed that the physics characteristics driving the discharge control system (DCS) are frequently modified on a pulse-to-pulse basis. Plant system operation, however, relies on technical standard settings, or "basic configurations" to provide guaranteed resources or services, which evolve according to longer term session or campaign operation schedules. This is why AUG manages technical configuration items separately from physics items. Consistent computation of the DCS configuration requires access to all this physics and technical data, which include the discharge programme (DP), settings of actuator systems and real-time diagnostics, the current system state and a database of static parameters. A Parameter Server provides a unified view on all these parameter sets and acts as the central point of access. We describe the functionality and architecture of the Parameter Server and its embedding into the control environment.

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Section: Resultsmentioning

confidence: 99%