CAJ | 학술논문

KTX反场箍缩装置的主要参数介于RFX装置与MST装置之间。反场箍缩的外加纵场需跟随等离子体电流的演化而变化，同时由于RFP中的磁面对于外部特别是等离子体边界处的径向磁场较敏感，所以需外部线圈的磁场更加精细，这对于线圈的磁场分布、误差场以及波纹度等的设计提出了更高的要求。根据KTX物理目标参数要求，提出矩形和楔形截面纵场磁体线圈设计方案，借助有限元软件和程序分析了其电磁场空间分布和结构受力大小。结果表明，6.4°楔形截面方案相比矩形截面方案在控制误差场方面更具有可行性。
KTX반장고축장치적주요삼수개우RFX장치여MST장치지간。반장고축적외가종장수근수등리자체전류적연화이변화，동시유우RFP중적자면대우외부특별시등리자체변계처적경향자장교민감，소이수외부선권적자장경가정세，저대우선권적자장분포、오차장이급파문도등적설계제출료경고적요구。근거KTX물리목표삼수요구，제출구형화설형절면종장자체선권설계방안，차조유한원연건화정서분석료기전자장공간분포화결구수력대소。결과표명，6.4°설형절면방안상비구형절면방안재공제오차장방면경구유가행성。
KTX device is a new reversed field pinch (RFP) device .Its main parameter is between RFX and MST .The external toroidal field (TF) of RFP is required to follow the evolution of the plasma current changes .Due to the facts that the magnetic surface in the RFP is more sensitive to the external radial magnetic field ,especially at the plasma boundary area ,the magnetic field distribution of the TF coil is required more sophisticated .Besides ,a number of TF design problems need to be better solved such as the error field .Two types of TF design programs were proposed according to the KTX physical target parameters . Electromagnetic and structure analyses were detailedly carried out by using finite element analysis method and magnetic code .The results show that the 6.4 degree wedge-shaped TF design is feasible .