Keyword: plasma
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TUMPA03 The Implementation of KSTAR Fast Interlock System using C-RIO ion, FPGA, EPICS, operation 337
 
  • M.K. Kim, J.S. Hong, T.H. Tak
    NFRI, Daejon, Republic of Korea
 
  Tokamak using superconducting magnets is becoming more and more important as long pulse operation and the ability to confine high temperature and density plasma to the interlock system to protect the device. KSTAR achieved H-mode operation for 70 seconds in 2016. In this case, it is necessary to have precise and fast operation protection device to protect Plasma Facing Component from high energy and long pulse plasma. The higher the energy of the plasma, the faster the protection device is needed, and the accurate protection logic must be realized through the high-speed operation using signals from various devices. To meet these requirements, KSTAR implemented the Fast Interlock System using Compact RIO. Implementation of protection logic is performed in FPGA, so it can process fast and various input and output. The EPICS IOC performs communication with peripheral devices, CRIO control, and DAQ. The hard-wired signal for high-speed operation from peripheral devices is directly connected to the CRIO. In this paper, we describe the detailed implementation of the FIS and the results of the fast interlock operation in the actual KSTAR operation, as well as future plans.  
slides icon Slides TUMPA03 [1.238 MB]  
poster icon Poster TUMPA03 [1.072 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUMPA03  
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TUPHA105 Development of Pulse Fault Sequence Analysis Application with KSTAR Data Integration System ion, operation, interface, controls 663
 
  • T.H. Tak, J.S. Hong, M.K. Kim, G.I. Kwon, T.G. Lee, W.R. Lee
    NFRI, Daejeon, Republic of Korea
 
  The Korea Superconducting Tokamak Advanced Research (KSTAR) interlock related systems are configured with various system such as fast interlock, supervisory interlock, plasma control, central control, and heating using various types of hardware, software, and interface platforms. For each system, monitoring and analysis tools are already well-developed. However, for the analysis of system fault behavior, these heterogeneous platforms do not help finding the relation of failure. When the interlock events are latched or pulse is stopped by PCS, events are transmitted to different actuators and it could make another events via various interface. In other words, it could lead another factor of fault causes on different system. Through this application we will figure out sequence of fault factor during the pulse-by-pulse KSTAR operation. The KSTAR Data Integration System (KDIS) is configured with KSTAR event-driven architecture and data processing environment. This application will be developed on the KDIS environment and synchronized with KSTAR event. This paper will present the development of shot fault sequence analysis logic and application with KDIS.  
poster icon Poster TUPHA105 [1.156 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA105  
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TUPHA164 Evaluation of Model Based Real Time Feedback Control System on Plasma Density ion, controls, real-time, software 794
 
  • W.R. Lee, J.S. Hong, G.I. Kwon, T.G. Lee, T.H. Tak
    NFRI, Daejon, Republic of Korea
 
  The KSTAR plasma control system has very powerful monolithic software architecture that has dedicated centralized system architecture. However, due to increasing of real time functionality on distributed local control system, we need a flexible high-performance software framework. A new real time core engine program inherited design philosophy from the Very Large Telescope (VLT) control software. A new Tool for Advanced Control (TAC) engine was based on C++ standard run on Linux. It is a multithreaded core engine program for execution of real time application. The elemental building blocks are chained together to form a control application.
"Design and implementation of a standard framework for KSTAR control system", FED, Volumes 89, 2015
"Designing a common real-time controller for VLT applications", Proc. of SPIE Vol. 5496
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA164  
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THCPA01 Safety Instrumented Systems and the AWAKE Plasma Control as a Use Case ion, controls, operation, PLC 1206
 
  • E. Blanco Viñuela, H.F. Braunmuller, B. Fernández Adiego, R. Speroni
    CERN, Geneva, Switzerland
 
  Safety is likely the most critical concern in many process industries, yet there is a general uncertainty on the proper engineering to reduce the risks and ensure the safety of persons or material at the same time of providing the process control system. Some of the reasons for this misperception are unclear requirements, lack of functional safety engineering knowledge or incorrect protection functionalities attributed to the BPCS (Basic Process Control System). Occasionally the control engineers are not aware of the hazards inherent to an industrial process and this causes the lack of the right design of the overall controls. This paper illustrates the engineering of the SIS (Safety Instrumented System) and the BPCS of the plasma vapour controls of the AWAKE R&D project, the first proton-driven plasma wakefield acceleration experiment in the world. The controls design and implementation refers to the IEC61511/ISA84 standard, including technological choices, design, operation and maintenance. Finally, the publication reveals usual difficulties appearing in such kind of industrial installations and the actions to be done to ensure the proper functional safety system design.  
slides icon Slides THCPA01 [6.199 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THCPA01  
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