Research On Electromagnetic Plasma Simulation For RMP Coils In Tokamak

In order to solve the energy problem,controlled thermonuclear fusion research is imminent.In the study of magnetic confinement fusion,high constraint(H)mode discharge experiment can increase the constraints time,it is great significance for fusion research,whic is the main direction of magnetic confinement fusion research.after all,fusion research institutions are designing a new type of tokamak is given priority to with high constraint mode discharge.However,due to the high discharge the constraint has high operation parameters,it will come into being some Magnetohydrodynamics(MHD)instability,such as edge of localized modes(ELM),resistance wall model(RWM).This is very adverse for realize the fusion reaction.In order to control the high constraint mode discharge experiment of MHD instability,so as to guaranteeing the high parameter high constraint modes of the plasma discharge studied can be runing smoothly.New type tokamak will be installed 16 saddle Resonant magnetic perturbation(RMP)coils.Each coil has 4 turns.including eight coils up on midplane,the lower is symmetry with it.Designed maximum current in RMP is 15 kA..Internal RMP coil need to be solved achieve a fixed support,insulation,vacuum sealing,and the coil to be able to carry the larger electromagnetic load and thermal load in very limited space.In this paper,the main research content and purpose is: through the study of the stress analysis and calculation of RMP coil support in the new type of tokamak plasma discharge experiments RMP coil by electromagnetic load,so as to calculate the RMP coil under various discharge configuration of mechanical deformation,and according to the structure characteristics of verifying the rationality of the design model and optimization and the into advice.Specific work content is as follows:1.Use SolidWorks RMP coil mechanical model is set up.2.Using ANSYS workbench stress analysis was carried out on the RMP coil support structure,the electromagnetic load calculation for behind and mechanical deformation.3.The RMP poloidal field coil set up by using the ANSYS APDL analysis model.And the plasma discharge experiments of several common poloidal field configuration simulation,the configuration of magnetic field distribution are obtained.Configuration and then load the poloidal field discharge current load at the same time in the RMP loading 15 ka RMP for maximum design current calculation by the electromagnetic force of load on the coil.Finally,according to some of the load and calculation of supporting structures in front of the stiffness of calculate the RMP support structure,and according to the structure characteristics of the model to analyze its rationality and optimization Suggestions.4.Using ANSYS APDL,RMP coil to field analysis model is established.According to the maximum current of toroidal field,calculate the RMP coil by the toroidal field coils load,and analyze the RMP for the rationality of the toroidal field and the optimization model.5.When calculating the poloidal field and the circular field analysis in the process of the simulation method to study the RMP coil load are simulated,and according to the simulation results to analyze its performance by means of the theory of electromagnetism.