Simulation and analysis of charge accumulation characteristics of post insulator of transmission line for the CRAFT NNBI system

doi:10.1016/j.fusengdes.2021.112948

	Simulation and analysis of charge accumulation characteristics of post insulator of transmission line for the CRAFT NNBI system
	Wang, RiXin 1,3; Xu, YongJian 1; Jiang, CaiChao 1; Peng, XuFeng 1; Yu, ZiChen 1,2; Xie, YaHong 1; Xie, YuanLai 1; Hu, ChunDong 1
刊名	FUSION ENGINEERING AND DESIGN
	2021-12-01
卷号	173
关键词	High voltage transmission line Post Insulator Surface charge accumulation
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112948
通讯作者	Xu, YongJian(yjxu@ipp.ac.cn)
英文摘要	For the negative-ion based neutral beam injectors (NNBI) system, the High voltage transmission line (HVTL) is a vital link between the radio frequency ion source system and the power supply system. Under the action of DC voltage, the surface of the internal post insulator of the HVTL will accumulate lots of charge, which can easily cause the post insulator to flashover. Therefore, the study of the accumulation characteristics of the surface charge for the post insulator under DC voltage is very significative to enhance the performance of the insulation and the reliability of the operation for the DC HVTL of the NNBI system. In this paper, taking the main post insulator of the HVTL as the research object, the accumulation model of the surface charge for the solid-gas composite insulation structure is established. Through finite element analysis, the effects of the bulk and superficial conductivity on the surface tangential electric field intensity and the surface charge density under three different material models are obtained. According to the calculation results, some suggestions and strategies for restraining the accumulation of surface charge are given, which provides a theoretical basis for the selection of material properties of the solid post insulator in the HVTL of the NNBI system.
资助项目	Comprehensive Research Facility for Fusion Technology Program of China[2018-00005273-01-001228] ; National key R&D Program of China[2017YFE0300101]
WOS关键词	FLASHOVER ; SF6 ; MECHANISMS ; SPACERS
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000731500000004
资助机构	Comprehensive Research Facility for Fusion Technology Program of China ; National key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126974]
专题	中国科学院合肥物质科学研究院
通讯作者	Xu, YongJian
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, POB 1126,Shushanhu Rd 350, Hefei 230031, Anhui, Peoples R China 2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wang, RiXin,Xu, YongJian,Jiang, CaiChao,et al. Simulation and analysis of charge accumulation characteristics of post insulator of transmission line for the CRAFT NNBI system[J]. FUSION ENGINEERING AND DESIGN,2021,173.
APA	Wang, RiXin.,Xu, YongJian.,Jiang, CaiChao.,Peng, XuFeng.,Yu, ZiChen.,...&Hu, ChunDong.(2021).Simulation and analysis of charge accumulation characteristics of post insulator of transmission line for the CRAFT NNBI system.FUSION ENGINEERING AND DESIGN,173.
MLA	Wang, RiXin,et al."Simulation and analysis of charge accumulation characteristics of post insulator of transmission line for the CRAFT NNBI system".FUSION ENGINEERING AND DESIGN 173(2021).