Characteristic analysis of the VCB operational overvoltage for high-speed trains considering arc reignition phenomenon

IF 3.4 2区工程技术 Q2 TRANSPORTATION SCIENCE & TECHNOLOGY

International Journal of Rail Transportation Pub Date : 2022-07-27 DOI:10.1080/23248378.2022.2105268

Song Xiao, Hao Hou, Y. Jin, Guoqiang Gao, Yujun Guo, Jie Zhou, Changlei Ju, Yixiang Shen, Jie Liu, Siyan Chen, Guangning Wu

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引用次数: 1

Abstract

ABSTRACT Due to the constant pursuit for higher operating velocity, the traction power capacity for high-speed trains needs to be enlarged. When the train passes approach the insulating sections set between the two neighbouring contact lines carrying the traction current with different phases, the vehicle-mounted vacuumed circuit breaker (VCB) needs to be switched off. Generally, the arc may generate when connecting or separating the contacts, when switching on or off the VCB. In order to investigate the characteristics of the reignition overvoltage the ‘train-rail-catenary’ traction power supply model considering the reignition process between the VCB’s contacts is launched in this paper. The impact of the dielectric strength recovery rate between the contacts of the VCB on the number of reignition and the amplitude of the reignition overvoltage is analysed based on the experimental and simulation results. Ultimately, the corresponding restraining measures are proposed for suppressing the reignition overvoltage.

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考虑电弧重燃现象的高速列车VCB运行过电压特性分析

摘要高速列车由于不断追求更高的运行速度，牵引功率容量亟待提高。当列车经过两条相邻接触线之间的绝缘段时，需要关闭车载真空断路器。通常，在连接或分离触点时，在打开或关闭真空断路器时，可能会产生电弧。为了研究重燃过电压的特性，本文建立了考虑VCB触点间重燃过程的“列车-轨道-接触网”牵引供电模型。根据实验和仿真结果，分析了VCB触点间介电强度恢复率对重燃次数和重燃过电压幅值的影响。最后，针对重燃过电压的抑制提出了相应的抑制措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Rail Transportation TRANSPORTATION SCIENCE & TECHNOLOGY-

CiteScore

6.90

自引率

15.00%

发文量

期刊介绍： The unprecedented modernization and expansion of rail transportation system will require substantial new efforts in scientific research for field-deployable technologies. The International Journal of Rail Transportation (IJRT) aims to provide an open forum for scientists, researchers, and engineers in the world to promote the exchange of the latest scientific and technological innovations in rail transportation; and to advance the state-of-the-art engineering and practices for various types of rail based transportation systems. IJRT covers all main areas of rail vehicle, infrastructure, traction power, operation, communication, and environment. The journal publishes original, significant articles on topics in dynamics and mechanics of rail vehicle, track, and bridge system; planning and design, construction, operation, inspection, and maintenance of rail infrastructure; train operation, control, scheduling and management; rail electrification; signalling and communication; and environmental impacts such as vibration and noise. The editorial policy of the new journal will abide by the highest level of standards in research rigor, ethics, and academic freedom. All published articles in IJRT have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent experts. There are no page charges and colour figures are included in the online edition free of charge.