Influence of Surface Roughness of Sliding Friction Pairs on Pantograph-Catenary Contact Resistance

Pantograph-catenary systems are the key equipment for current conduction from power grids to electric locomotives, and within such a system, the property of the slide, especially the contact resistance ( R j ), directly affects its current collection performance. Compared to previous studies, this p...

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Bibliographic Details
Published inIEEE transactions on transportation electrification p. 1
Main Authors Wang, Xiaokang, Guo, Fengyi, Li, Fuhua, Liu, Zhigang, Kou, Jiabao
Format Journal Article
LanguageEnglish
Published IEEE 2024
Subjects
Carbon
Contact resistance
Correlation coefficient
Curve fitting
Friction
Rough surfaces
Surface resistance
Surface roughness
Wires
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Summary:Pantograph-catenary systems are the key equipment for current conduction from power grids to electric locomotives, and within such a system, the property of the slide, especially the contact resistance ( R j ), directly affects its current collection performance. Compared to previous studies, this paper focuses on the microscopic roughness parameters which affects R j greatly. The changing rule of R j under different roughness conditions is studied on 128 groups of data collected from experiments. More importantly, the second-order partial correlation coefficient is introduced to quantify the impact strength of different roughness parameters on R j . Based on this, a multi-parameter influence model of R j is established and verified by non-linear fitting. The results show that the impact strength of the relevant roughness parameters is ranked as R pc > R p > R sm . The conclusion provides a theoretical basis for minimizing pantograph-catenary R j and improving current collection quality. Moreover, it facilitates slide material selection and contributes to new prototype design.
ISSN:2332-7782
2332-7782
DOI:10.1109/TTE.2024.3384022