Study On The Real-time Computation Algorithms Of Key ComPonent For EAST Safety Operation

For ensuring the operation safety of EAST and meet the requirements of plasma physics experiments with higher parameters,a platform which can achieve real-time monitoring,risk assessment and data processing will be built.Since it is difficult for commercial finite element analysis(FEA)software to achieve the real-time analysis and calculation for key components of EAST during operating.Therefore,The algo-rithms and simulator aim at EAST magnet systems,vacuum vessel(VV)and plasma facing components(PFCs),especially their electromagnetic load,the magnet AC loss are studied in this dissertation.They are used to develope the real-time monitoring and feedback platform for EAST.the real-time evaluation algorithm of EAST superconducting magnet is studied firstly.The traditional method of AC loss calculation is introduced in this part.Interac-tion matrix method is introduced to solve magnetic field B in AC loss calculation.The magnetic field interaction matrices of center of EAST PF magnets at unit current are established,then the magnetic field acting on each coil can be quickly obtained by a linear transform of given currents using the matrices.AC losses of all PF coils at several typical scenarios are evaluated.Results validated the method can be practical and con-veniently used for quick AC loss assessment of EAST magnet system.The electromag-netic(EM)loads interaction matrices of magnet is also established and EM loads of EAST magnets under typical shot are obtained.The real-time evaluation algorithm for of EAST magnet system safe operation is studied.Secondly,the real-time evaluation algorithm for EM response of EAST VV in complex electromagnetic environment is studied.Different EM loads type is acting on VV is analyzed,Equivalent circuit theory of first order linear system and equivalent discrete coil model method is used for developing the real-time evaluation algorithm of EM loads induced by VV poloidal eddy currents.EM loads acting on VV at given plasma scenarios are calculated.Then,based on magnetic moment theory,the integral parameters method applied to the real-time EM load evaluation algorithm for EAST PFCs is studied in this part.The basic principle of the method is introduced.The magnetic moment and time con-stant of integral parameters of each PFC are extracted by harmonic analysis technology.Then EM loads acting on EAST PFCs during two plasma scenarios are calculated by simple linear calculation using pre-obtained integral parameters and magnetic fields.Meantime,in order to prove the universality of the above real-time analysis algorithm,the algorithm is applied to the electromagnetic force solution of CFETR VV and blan-kets.Results further verify the accuracy and effectiveness of the real-time analysis al-gorithm.Finally,the developing real-time monitoring and feedback platform and its partial functions are introduced in this part.The real-time analysis algorithms are summarized and complete real-time analysis and calculation algorithms of key components for EAST is developed.The real-time AC loss evaluation algorithm of EAST PF coil are embedded in the platform.And the debugging and operating are completed,which pre-liminarily verified the feasibility and practicability of the platform...