Electrical-thermal coupling characteristics of pre-insertion resistors in AC filter circuit breaker for UHV grid

doi:10.3934/mbe.2023536

	Electrical-thermal coupling characteristics of pre-insertion resistors in AC filter circuit breaker for UHV grid
	Bao, Yanyan 1,2; Liu, Kang 2; Wen, Dingjun 3; Li, Yifan 1; Wang, Hao 1; Zhang, Hongliang1
	2023
发表期刊	MATHEMATICAL BIOSCIENCES AND ENGINEERING
ISSN	1547-1063
卷号	20 期号:7 页码:12056-12075
摘要	The ultra-high voltage (UHV) AC/DC grid can provide a platform for sustainable power worldwide. To improve the bus voltage quality of the UHV AC system, AC filters are frequently switched into the UHV grid through circuit breakers with pre-insertion resistors. The pre-insertion resistors suppress inrush currents and operate over-voltage during switching. In this paper, we establish a macro and micro model of the pre-insertion resistor based on its temperature coefficient and micromorphology. We simulate and analyze its electric-thermal coupling characteristics under standard closing and short-circuit faults. After the simulation model and physical comparison analysis, we find that under a usual closing surge, the electric field distribution of the pre-insertion resistor is uniform and undergoes a slight rise in temperature. However, under a short circuit fault, the temperature rise is drastic and exceeds the maximum allowable temperature, causing glassy melt in some parts of the resistor. Considering the volume ratio of each component of the resistor, a two-dimensional crosssectional simulation model of the resistor is established to simulate the electric-thermal characteristics of the microstructure of the resistor, and insinuates that the current is concentrated in the carbon channel. That is mainly due to the uneven distribution of carbon material and may lead the local temperature to exceed the maximum allowable temperature and damage the resistor.
关键词	AC filter circuit breaker pre-insertion resistor electrical-thermal coupling ultra-high voltage smart grid
DOI	10.3934/mbe.2023536
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Mathematical & Computational Biology
WOS类目	Mathematical & Computational Biology
WOS记录号	WOS:000996341600006
出版者	AMER INST MATHEMATICAL SCIENCES-AIMS
EI入藏号	20232714329588
EI主题词	Electric circuit breakers
EI分类号	641.1 Thermodynamics ; 701.1 Electricity: Basic Concepts and Phenomena ; 706.1 Electric Power Systems ; 706.1.1 Electric Power Transmission ; 706.1.2 Electric Power Distribution ; 713.4 Pulse Circuits ; 804 Chemical Products Generally
来源库	WOS
原始文献类型	Article
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/162087
专题	电气工程与信息工程学院
作者单位	1.Lanzhou Univ Technol, Coll Elect Engn & Informat Engn, Lanzhou, Peoples R China; 2.State Grid Gansu Elect Power Co, Elect Power Res Inst, Lanzhou, Peoples R China; 3.State Grid Gansu Elect Power Co, Party Sch, Training Ctr, Lanzhou, Peoples R China
第一作者单位	电气工程与信息工程学院
第一作者的第一单位	电气工程与信息工程学院
推荐引用方式 GB/T 7714	Bao, Yanyan,Liu, Kang,Wen, Dingjun,et al. Electrical-thermal coupling characteristics of pre-insertion resistors in AC filter circuit breaker for UHV grid[J]. MATHEMATICAL BIOSCIENCES AND ENGINEERING,2023,20(7):12056-12075.
APA	Bao, Yanyan,Liu, Kang,Wen, Dingjun,Li, Yifan,Wang, Hao,&Zhang, Hongliang.(2023).Electrical-thermal coupling characteristics of pre-insertion resistors in AC filter circuit breaker for UHV grid.MATHEMATICAL BIOSCIENCES AND ENGINEERING,20(7),12056-12075.
MLA	Bao, Yanyan,et al."Electrical-thermal coupling characteristics of pre-insertion resistors in AC filter circuit breaker for UHV grid".MATHEMATICAL BIOSCIENCES AND ENGINEERING 20.7(2023):12056-12075.