Study on the Influencing Factors of Electrical Characteristics of Articulated Split-Zone Insulator Arc

Like Pan, Biaohuan Xie, Liming Chen (), Tong Xing, Haibo Zhang, Yanming Lu and Yang Song
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Like Pan: China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
Biaohuan Xie: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Liming Chen: China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
Tong Xing: China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
Haibo Zhang: China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
Yanming Lu: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Yang Song: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China

Energies, 2024, vol. 17, issue 16, 1-13

Abstract: The frequent occurrence of the pantograph–catenary (PC) arc seriously threatens the safe and stable operation of electric multiple units (EMUs). In order to investigate the primary factors affecting the electrical characteristics of the PC arc, this paper first reveals the mechanism of arc generation when EMUs leave the split-zone insulator according to the actual mechanical structure of the PC articulated split-zone insulator. Then, based on the Habedank black box arc model, considering the dynamic changes in arc length during the actual operation of EMUs, a numerical simulation model suitable for describing the PC articulated split-zone insulator arc is established. Furthermore, by comparing with existing research results, the effectiveness of the proposed model is verified. Next, a series of simulation experiments were conducted to analyze the influence of different operating parameters of the EMUs on the electrical characteristics of the PC arc. More importantly, the paper proposes using the entropy weight method to calculate the impact strength of different operating parameters of the EMUs on the arc duration time of the contact wire split-zone region. The research results of this paper can provide some technical references for reducing the erosion of the PC contact wire and slide caused by arcs when the EMUs pass through the split-zone insulator.

Keywords: high-speed railway; articulated split-zone insulator; pantograph–catenary arcing; arc modeling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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