Research Achievements Integrated real-time RMP control for ELM-less H-mode in long pulse Research Overview - A study on integrated real-time RMP control for ELM-less H-mode operation in long pulse and enhancement of plasma confinement using real-time control technology based on artificial intelligence and RMP spectrum optimization Research Contents - Development of adaptive control(controlling the magnitude and structure of the three-dimensional magnetic field in real time), machine learning algorithm(classifying plasma state and detecting L-H transition and applying RMP in real time), and RMP spectrum optimization technology(ERMP, Edge-localized RMP) Major Research Achievements - Qualitative results : Achieved a record long, 45 seconds, ELM control period and βN ∼ 2.65 RMP-driven ELM crash suppression, which is ∼10% enhanced plasma confinement compared to the previous record through ELM control experiments in long-pulse high-performance plasmas based on adaptive ELM control, machine learning algorithm, and 3D field optimization via an edge-localized RMP - Quantitative Products : Multiple presentations in international conferences including APS-DPP 2022 and publications in prestigious journals such as nuclear fusion* Expectation Effect - By providing the latest technology for ELM control in long-pulse high-performance plasmas as expected in next generation fusion reactors such as ITER and K-DEMO, KSTAR will have the world-class ELM control capability as one of its unique technologies for nuclear fusion Image Comparison of plasma operations in 2021 (38 seconds) and 2022 (45 seconds) with AI-based real-time control technology and 3D magnetic field optimization

작성자 최고관리자 등록일 2024-02-05 13:49:01

Achievements > Major Achievements

Research Achievements Development of the Integrated engineering analysis platform of DEMO divertor through electromagnetic-structure coupled analysis Research Overview - By developing an environment capable of electromagnetic-structure coupling analysis, the electromagnetic force generated in the divertor during the DEMO plasma disruption and the resulting deformation and stress were evaluated. Research Contents - Develop an integrated analysis environment that can evaluate the structural integrity of the divertor by calculating the electromagnetic force generated during the DEMO plasma disruption for various scenarios using ANSYS Emag Solver and applying this force to structural analysis Major Research Achievements - Electromagnetic forces were evaluated for 6 types of MD (Major Disruption) and VDE (Vertical Displacement Events), which are representative plasma disruption scenarios of the DEMO, structural analysis was performed according to each scenario, and a coupling analysis environment was developed. Expected Effects - Through the developed integrated analysis environment, it is expected to be used for evaluating the electromagnetic force and structural integrity of various major parts such as the blanket and vacuum vessel as well as the divertor of the DEMO. Image Model for electromagnetic analysis Plasma disruption scenario of DEMO (Ex.: VDE_DW_exp16ms) Electromagnetic forces (PFV: left, HC: middle, TFV: right) generated by plasma destruction (e.g. VDE_DW_exp16ms) in the DEMO Evaluate the stress caused to the divertor by the electromagnetic force during the plasma disruption of the DEMO (e.g. VDE_DW_exp16ms)

작성자 최고관리자 등록일 2024-02-05 13:43:36

Achievements > Major Achievements

Research Achievements The SpaceX moment for fusion? HTS conductor design study Research Overview - HTS(High Temperature Superconductor) conductor concepts have been developed, which forms a basis for innovative ultra high field fusion magnets, a key leading edge technology Research Contents - New concepts of HTS conductor(SICC, Stacks-In-Conduit Conductor, suitable for high field fusion magnet) and thermo-hydraulic analysis scheme(stability analysis for the magnet made of SICC) developed Major Research Achievements (Qualitative results) - A genuine technological basis acquired, which compromise technological advantages of two major leading groups in US and EU (Quantitative Products) - A patent on conceptual designs of HTS conductor have been applied and a paper on their thermo-hydraulic analysis results submitted Expected Benefits - Feasibility study starting with demonstration fabrication is being carried out and technology transfer or commercialization will be tried afterwards Image HTS conductor concepts Thermo-hydraulic analysis scheme

작성자 최고관리자 등록일 2024-02-05 13:38:12

Achievements > Major Achievements