Research on the distributed capacitance for high-voltage key components on CRAFT NNBI
简介：The negative ion based neutral beam injector(NNBI)with a beam energy of 400 keV is one of the subsystems at the Comprehensive Research fAcility for Fusion Technology(CRAFT)in China.The distributed capacitance of the high-voltage components is an important basis for the design of surge suppression devices at CRAFT NNBI.This study conducted calculations of distributed capacitance for the key components,including the high-voltage deck,transmission line and isolation transformer in the power supply system using the finite element method.The relationship between the high-voltage deck(HVD)distributed capacitance and the distance from the wall is discussed.The differences in distributed capacitance and energy storage between non-coaxial and coaxial transmission lines are also debated.Finally,the capacitance between the primary and secondary windings of the-400 kV isolation transformer,as well as between the secondary winding and the oil tank casing,was calculated.展开
学者：刘波刘智民蒋才超刘胜潘军军陈世勇魏伟屈宇琛梁立振白若昕谢远来
关键词：NNBIpower supply systemdirect-current high voltagedistributed capacitancefinite elements analysis
在线出版日期：2025-06-13 （网站首发日期）
