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- W619318013 abstract "Research in nuclear fusion devices is motivated by the increasing global demand of low-cost and eco-friendly energy. To meet the requirements for an economically attractive fusion power plant, new real-time control and data acquisition systems that support quasi-continuous plasma operation and unstable plasma scenarios have to be investigated. This thesis covers hardware and software design and codesign issues in real-time control and data acquisition for quasi-continuous nuclear experiments, with emphasis on the choice of data acquisition and generation hardware, central processing units, real-time operating systems andapplication frameworks. The work starts with an introduction to fusion science and magnetic nuclear fusion experimental devices. Two different experiments (RFX-mod and JET) are then presented in order to show several plasma instabilities that need to be controlled in real time, namely Magneto Hydro Dynamic modes stabilization (MHD) and Vertical Stabilization (VS). The thesis then focuses on the hardware design of data acquisition boards; moreover interpolation problems in analog to digital signal conversion that arise from the adoption of nonsimultaneous sampling instead of the established simultaneous sampling are covered. A section dedicated to Open-Source software that addresses Operating Systems and application frameworks for low latency real-time control and data acquisition follows. Linux with its Real-Time patches is proved to be a Hard Real-Time Operating System running on multicore CPUs along with resource partitioning and shielding. Different control computational models and software frameworks implementing them are presented; MARTe, among EPICS and many others, has shown the lowest latency and the most bounded jitter. The thesis ends with the design and implementation details of the proposal for the RFX-mod MHD control system upgrade." @default.
- W619318013 created "2016-06-24" @default.
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- W619318013 date "2011-01-31" @default.
- W619318013 modified "2023-09-27" @default.
- W619318013 title "Emerging Hardware Architectures and Advanced Open-Source Software Technologies for Real-Time Control and Data Acquisition in Quasi-Continuous Nuclear Fusion Experiments" @default.
- W619318013 hasPublicationYear "2011" @default.
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