基于雨水混合物模型的平抗直流套管的雨闪故障分析

doi:10.19595/j.cnki.1000-6753.tces.160591

Abstract
Figure/Table
References
Related Citation (8)

Download: PDF (2470 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Rain flashover analysis has always been a hotspot in the high voltage insulation research.By using finite-element method,a rain flashover fault in the HVDC bushing of 500 kV reactor has been analyzed.In order to simulate the electric field of the HVDC bushing in the rain,the rainwater and air are assumed as one mixture with equivalent material properties,which are determined by their proportion respectively.Hence,by using the equivalent material properties in the mixture model,the coupling of fluid flow-electric field can be implemented.Simulation results indicate that the rain flashover is more likely to occur on the upper end of the bushing.Owing to the collision and aggregation in the rainwater-air mixture,the electric field intensity in the rain on the upper end of the bushing increases significantly compared to that in the dry environment.Compared with the scene photographs,the actual position where rain flash occurred agrees well with simulations and the veracity is validated.

Key words： Rain flashover HVDC bushing fluid field-electric field coupling fault analysis

Received: 27 April 2016 Published: 10 November 2017

PACS:

TM852

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Deng Wanting
	Zhang Bo
	Wang Tao
	Li Liang

Cite this article:

Deng Wanting,Zhang Bo,Wang Tao等. Rain Flashover Analysis of HVDC Reactor Bushing Using Rainwater-Air Mixture Model[J]. Transactions of China Electrotechnical Society, 2017, 32(21): 211-217.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160591 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I21/211

[1] 郭树永,郝江涛.天生桥换流站高压直流分压器雨闪事故分析[J].四川电力技术,2008,31(2):36-37.
Guo Shuyong,Hao Jiangtao.Rain flashover accident analysis of HVDC voltage divider in Tianshengqiao converter station[J].Sichuan Electric Power Technology,2008,31(2):36-37.
[2] 张福增,赵锋,王黎明,等.高海拔地区复合支柱绝缘子的污雨闪特性[J].中国电机工程学报,2010,30(1):14-19.
Zhang Fuzeng,Zhao Feng,Wang Liming, et al.Wet flashover characteristic of composite post insulators at high altitudes[J].Proceedings of the CSEE,2010,30(1):14-19.
[3] 宿志一.超高压变电设备污秽外绝缘设计的重点[J].中国电力,2001,34(1):51-54.
Su Zhiyi.To prevent the big bushing flashover the focal point of external insulation design of the UHV transformation equipment[J].Electric Power,2001,34(1):51-54.
[4] 胡长猛,谢从珍,袁超,等.雾霾对输变电设备外绝缘特性影响机理综述[J].电力系统保护与控制,2015,43(16):147-154.
Hu Changmeng,Xie Congzhen,Yuan Chao,et al.A review on influence mechanism of haze on external insulation characteristics of transmission and transformation equipment[J].Power System Protection and Control,2015,43(16):147-154.
[5] Filho O O,Cardoso J A,Ramalho de Mello D,et al.Use of Booster sheds to improve performance of 800 kV multicone type insulators under heavy rain[J].High Voltage Engineering,2011,37(11):2772-2779.
[6] 张楚岩,孟晓波,张福增,等.支柱绝缘子直流污雨闪放电机理研究[J].中国电机工程学报,2014,34(9):1481-1489.
Zhang Chuyan,Meng Xiaobo,Zhang Fuzeng,et al.Research on the DC rain flashover mechanism of polluted post insulators[J].Proceedings of the CSEE,2014,34(9):1481-1489.
[7] 胡琴,袁伟,舒立春,等.电压类型对复合绝缘子覆冰及闪络特性的影响[J].电工技术学报,2015,30(3):268-274.
Hu Qin,Yuan Wei,Shu Lichun,et al.Influence of voltage types on composite insulator icing and flashover characteristics[J].Transactions of China Electrotech-nical Society,2015,30(3):268-274.
[8] 张志劲,张东东,刘小欢,等.污秽成分对LXY_4-160绝缘子串交流闪络特性的影响[J].电工技术学报,2014,29(4):298-305.
Zhang Zhijin,Zhang Dongdong,Liu Xiaohuan,et al.Effect of pollution compositions on the AC flashover performance of LXY4-160 suspension glass insulator string[J].Transactions of China Electrotechnical Society,2014,29(4):298-305.
[9] 徐志钮,律方成,李和明.分离水珠对支柱绝缘子电场分布的影响[J].高电压技术,2010,36(9):2278-2284.
Xu Zhiniu,Lü Fangcheng,Li Heming.Influence of separated globules on post insulator electric field distribution[J].High Voltage Engineering,2010,36(9):2278-2284.
[10]刘刚,李琳,纪锋,等.基于节点电荷电位有限元法的油纸绝缘结构极性反转电场分析[J].中国电机工程学报,2011,31(25):132-138.
Liu Gang,Li Lin,Ji Feng,et al.Analysis of polarity reversal electric field of oil-paper insulation based on charge-scalar potential finite element method[J].Proceedings of the CSEE,2011,31(25):132-138.
[11]熊小伏,翁世杰,王建,等.考虑降雨修正的干字型耐张塔跳线风偏放电在线预警方法[J].电力系统保护与控制,2015,43(5):136-143.
Xiong Xiaofu,Weng Shijie,Wang Jian,et al.An online early warning method for windage yaw discharge of jumper towards "JG" type strain tower considering corrected by rainfall[J].Power System Protection and Control,2015,43(5):136-143.
[12]杨翠茹,杨帅,唐铭骏,等.较低湿度下含糖污秽绝缘子放电特性[J].电工技术学报,2015,30(10):346-353.
Yang Cuiru,Yang Shuai,Tang Mingjun,et al.Discharge mechanism of polluted insulator with glucose under low humidity[J].Transactions of China Electrotechnical Society,2015,30(10):346-353.
[13]王燕,皇甫成,杜志叶,等.覆冰情况下输电线路有限元计算及其结构优化[J].电力系统保护与控制,2016,44(8):99-106.
Wang Yan,Huangfu Cheng,Du Zhiye,et al.Finite element calculation and structural optimization method for the high voltage transmission line under icing condition[J].Power System Protection and Control,2016,44(8):99-106.
[14]ABB(2016,May)[Online].Available:www.abb.com.cn.
[15]Manninen M,Taivassalo V.On the mixture model for multiphase flow[M].ESPOO:Valtion Teknillinen Tutkimuskeskus(VTT)Publications,1996.
[16]Iwasa Y.Case studies in superconducting magnets[M].Springer US,2009.
[17]吴光艳,祝振华,成婧,等.黄土高原南部降雨侵蚀力试验研究[J].水土保持学报,2011,25(2):33-38.
Wu Guangyan,Zhu Zhenhua,Cheng Jing,et al.Preliminary study on rainfall erosivity in the southern Loess Plateau[J].Journal of Soil and Water Conservation,2011,25(2):33-38.
[18]孙学金,孙海洋,江志东.不同大气条件雨滴下落速度的数值仿真[J].计算机仿真,2011,28(12):402-406.
Sun Xuejin,Sun Haiyang,Jiang Zhidong.Numerical simulation of terminal velocity of raindrops falling under different atmospheric conditions[J].The Computer Simulation,2011,28(12):402-406.