Study on Characterization of Electrical Contact between Pantograph and Catenary

Wang, Wangang; Dong, Anping; Wu, Guangning; Gao, Guoqiang; Zhou, Lijun; Wang, Bo; Cui, Yi; Liu, Donglai; Li, Dajian; Li, Tianzhi

doi:10.1109/holm.2011.6034815

Cited by 16 publications

(10 citation statements)

References 4 publications

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“…The research studies of PC interaction dynamics include the system algorithm of PC [4,5] and control strategy of contact force [6,7], which can provide assessment of PC current collection quality. For the research studies of PC electrical contact, Holm analysed the microscopic structure of contact face and put forward the concept of contact resistance [8]; on this basis, many research studies refined the mathematical form of contact resistance [9,10] and revised the contact resistance model considering external factors of contact face [11][12][13]; combined with the electric contact theory many experiments of PC electrical contact have been carried out [14][15][16] and reflected the influence of practical PC factors on current collection quality. The research studies of PC arc detection include the methods of data detection [17,18] and image detection [19,20], which can provide forecast for PC contact failure.…”

Section: Inrotductionmentioning

confidence: 99%

Study on electric spark discharge between pantograph and catenary in electrified railway

Zhou

Duan

Liu

et al. 2022

IET Electrical Syst in Trans

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The electric spark caused by pantograph‐catenary (PC) electrical contact failure happens frequently, it is a kind of arcing phenomenon which can severely affect the current collection of PC. The theoretical analysis and modelling of PC electric spark are tried. First, the contact spots between PC and their temperature rise are analysed and derived based on the classical electrical contact theory, respectively. The mechanism of spark discharge is revealed through the analysis of PC voltage difference, and the spark discharge model is proposed combining with the spot temperature rise formula and spark discharge mechanism. Then, in order to obtain some key parameters in an electric spark discharge model, such as contact force and contact current, the structure model of PC and the circuit model of vehicle‐grid are established for the calculation of the spark rate in PC. Finally, the spark rate is calculated and analysed under the different parameters in PC system. The calculation results are verified by the experiment results. Through the presentation of the correlation of electric spark discharge and factors, such as contact force, contact current and material of PC, this study can support the assessment of electrical contact quality in the PC system in future study.

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Section: Inrotductionmentioning

confidence: 99%

Study on electric spark discharge between pantograph and catenary in electrified railway

Zhou

Duan

Liu

et al. 2022

IET Electrical Syst in Trans

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“…Hence contact resistances can be acquired by means of Ohm's law. Contact resistances were one of the key parameters of the electric contact property, and the normal force had a highly influence on contact resistances [15,16]. Therefore contact resistance can reflect the contact status between carbon strips and contact wires.…”

Section: Measurement Details and Test Parametersmentioning

confidence: 99%

“…The variations of contact resistance of pantograph and catenary system under various electric current and normal forces were analyzed in the static contact condition [15,16]. The variation of contact resistance with time was studied, and the temperature distribution of a carbon strip was obtained in a static contact condition [17].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways

Jie

Wei

et al. 2017

Energies

Self Cite

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Abstract:The sliding electric contact of pantograph/contact wire systems plays a significant part in the current collection stability and operation life of pantograph/contact wire systems. This paper addresses the evolutionary process of sliding electric contact of pantograph/contact wire systems by analyzing three key characteristics including contact resistance, temperature distribution and microstructure. The influence of electric current on contact resistance was interpreted. Furthermore, the evolution of the spatial temperature distribution of the carbon strip was obtained in the zigzag movement, while the dominant role of electric effect in temperature rise was demonstrated. In the end, the wear morphology differences under pure friction and current-carrying conditions were analyzed. The formation of radial cracks was illustrated and its influenced on the wear process was discussed.

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“…The influence factors of the friction and wear in the pantograph catenary system are: contact pressure, contact current, the speed of the Motor vehicle and so on. The intercoupling of the factors will also affect each other and then influence the wear, which is involved in electric erosion wear and mechanism wear [3][4][5]. Qualitative analysis is major research method in recent days.…”

Section: Introductionmentioning

confidence: 99%

Modeling study of the amount of wear in sliding electric contact

Chen

Hui

Wang

et al. 2012

26th International Conference on Electrical Contacts (ICEC 2012)

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The wear produced from the sliding contact in the pantograph slide and contact line system, has a direct relationship with the contact load. In premise of the current carrying performance conditions, there will be erosion resistance wear when the load is smaller, but mechanism wear when the load is bigger. In this article, many experiments through the leaching copper carbon sliding plate and Silver copper wire were conducted to study the wear characteristics of the sliding electrical contact in different load flow, speed and the changes of load. And some variables are fixed, then the others will be changed to find the variety of wear, also the data have been saved. After analyzing the relationship of different conditions, a model including the wear and the contact load will be produced, then draw the function equation include speed and others variables. The coefficient of which will be devised based on the saved data using the least-square method. And some experimentations are taken to validate the model, which could adequately reflect the function relationship between the wear and contact load. Also this model will be given a theory basis on the best load designing.

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Study on Characterization of Electrical Contact between Pantograph and Catenary

Cited by 16 publications

References 4 publications

Study on electric spark discharge between pantograph and catenary in electrified railway

Study on electric spark discharge between pantograph and catenary in electrified railway

Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways

Modeling study of the amount of wear in sliding electric contact

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