The challenge and solution of overvoltage for 100 kA Quench Protection System in CRAFT project

doi:10.1016/j.fusengdes.2022.113001

HFCAS OpenIR

	The challenge and solution of overvoltage for 100 kA Quench Protection System in CRAFT project
	Xu, Meng 1,2; Li, Hua1 ; Song, Zhiquan1 ; Hu, Xingguang 1,2; Tang, Cunwen 1,2; Fu, Peng1
	2022-02-01
发表期刊	FUSION ENGINEERING AND DESIGN
ISSN	0920-3796
通讯作者	Li, Hua(lihua@ipp.ac.cn)
摘要	The high parameters of superconducting magnet in Comprehensive Research Facility for Fusion Technology (CRAFT) project can reach 10 kV/100 kA, which pose great challenge to the design of Quench Protection System (QPS). In particular, the large-scale discharge resistor built for consuming electromagnetic energy stored in superconducting coils, will bring unneglected stray inductance to operating circuit. Therefore, a transient overvoltage may be generated to fail the breaking process and damage the magnet insulation. In this paper, the generation and effects of overvoltage are discussed in detail and verified by simulation. This paper proposes an optimal snubber circuit to constrain overvoltage. By analyzing the commutation process of QPS with snubber circuit, the electrical equations and value selection principles are determined. In addition, the overvoltage constraint effects under different parameters of snubber circuit are compared by simulation. Finally, a set of optimum parameters is proposed to meet the requirements of voltage constraint and cost control.
关键词	CRAFT Quench protection system Stray inductance Overvoltage Snubber circuit
DOI	10.1016/j.fusengdes.2022.113001
关键词[WOS]	DESIGN
收录类别	SCI
语种	英语
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000779064100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/131459
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Hua
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Xu, Meng,Li, Hua,Song, Zhiquan,et al. The challenge and solution of overvoltage for 100 kA Quench Protection System in CRAFT project[J]. FUSION ENGINEERING AND DESIGN,2022,175.
APA	Xu, Meng,Li, Hua,Song, Zhiquan,Hu, Xingguang,Tang, Cunwen,&Fu, Peng.(2022).The challenge and solution of overvoltage for 100 kA Quench Protection System in CRAFT project.FUSION ENGINEERING AND DESIGN,175.
MLA	Xu, Meng,et al."The challenge and solution of overvoltage for 100 kA Quench Protection System in CRAFT project".FUSION ENGINEERING AND DESIGN 175(2022).