Pantograph–Catenary Arcing Detection Based on Electromagnetic Radiation

Gao, Guoqiang; Yan, Xin; Yang, Zefeng; Wei, Wenfu; Hu, Yi; Wu, Guangning

doi:10.1109/temc.2018.2841050

Cited by 33 publications

(27 citation statements)

References 18 publications

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“…An electric arc, as anticipated, is a source of electromagnetic emissions and disturbance [7] [8], both conducted and radiated, impacting the power quality of the line [12] as well as the measurement of electrical quantities [12]- [15] and radio systems for signalling and communications [16]- [19]. An electric arc, as with any other steep transient, is not a standalone event; rather, it is a broadband excitation for the entire electric traction system and triggers other conducted phenomena, such as resonances, oscillations, and overvoltages.…”

Section: Introductionmentioning

confidence: 89%

“…The number of electric arcs is indicated as a direct index for the assessment of the quality of current collection in EN 50367 [3], sec. 7.3 'Percentage of arcing'; thus, their identification is a relevant problem: arcs can be detected by measuring the light emissions (mostly blue and ultraviolet) [4]- [6], the electromagnetic emissions [7] [8], or by processing the pantograph electrical quantities [9]- [11], looking for typical distortions, such as voltage jumps and oscillations. The presence of many similar transients can confuse detection algorithms, which can be beneficial in an analysis of the related phenomena and system response, as carried out in this work.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Characterization of Pantograph Arcs and Transient Conducted Phenomena in DC Railways

Mariscotti

Giordano

2020

ACTA IMEKO

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<p class="Abstract">An electric arc is an example of a transient event that is quite common in electrified transportation systems as by-product of the current collection mechanism. As a broadband transient, an electric arc excites a wide range of (often oscillatory) responses related to the substation and onboard filters, as well as the line resonances and anti-resonances. Similarly do the charging of onboard filter and other related inrush events. This work considers the electrical characteristics of these transients and of the excited responses in order to define their typical spectral signatures in DC railways and take them into account concerning their impact on Power Quality measurements and the measurements of instruments deployed onboard.</p>

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of Pantograph Arcs and Transient Conducted Phenomena in DC Railways

Mariscotti

Giordano

2020

ACTA IMEKO

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“…The electric energy required by urban rail trains is obtained from the continuous sliding contact between the pantograph and the contact line [1]. During train operation, the pantograph and contact line may be offline due to the longitudinal vibration caused by the vehicle body vibration, irregularity of wheels and rail, hard point and other factors.…”

Section: Introductionmentioning

confidence: 99%

“…Different from the 27.5 kV power supply mode of AC electrified railways, urban rail use DC 1500V power supply generally [6]. The AC and DC pantograph arc current signals are quite different from each other, the AC pantograph arc current signal is periodic and presents a completely different state from DC [1]. Therefore, the applicability of the existing AC arc detects method in DC arc needs to be further verified.…”

Section: Introductionmentioning

confidence: 99%

Pantograph Arc Detection of Urban Rail Based on Photoelectric Conversion Mechanism

2020

IEEE Access

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According to the solar-blind characteristic of the pantograph arc spectrum distribution, an arc detection method based on the photoelectric conversion mechanism for urban rail was proposed, and the design of each part of the arcing detection system was completed. Through the analysis of arc spectral distribution, the 275-285 nm band was determined as the detection characteristic waveband. The optical acquisition system located on the roof of the train collects the arc characteristic light and transmits it to the photoelectric conversion module, which converts the received optical signal into the corresponding current signal linearly. After amplification, comparison and screening in this module, the optical signal is sent to the data processing module for output display. Finally, a field test conducted on an urban rail transit line shows that this arc detection system can effectively detect the pantograph arc phenomenon and reflect the arc intensity linearly avoiding the influence from natural light, train load and train running direction. INDEX TERMS Urban rail, pantograph arc, photoelectric conversion, arcing detection.

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“…The waveform of the pantograph arcing looks like high-frequency pulse width modulation and such a transient process could last for a fraction of a second [14]. The electromagnetic radiated interference caused by pantograph-catenary arcing has been analyzed, and solutions in the arcing detection method and the sensitivity to components have been presented [15][16][17]. A laboratory test platform was built to verify both the arcing characteristic and the detection method [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

A Supercapacitor-Based Method to Mitigate Overvoltage and Recycle the Energy of Pantograph Arcing in the High Speed Railway

Xu¹,

Chen²,

Cheng³

et al. 2019

Energies

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The pantograph arcing phenomenon may shorten the service life of a pantograph and even destroy onboard devices and instruments, due to the irregular motions of the train and the intermittent line–pantograph disconnection. This paper points out that abrupt inductive energy from the magnetizing inductance of the traction transformer can lead to an electromagnetic transient process with unexpected overvoltage across it. Further, a supercapacitor-based power electronic system is proposed, which can not only redirect the inductive energy to the supercapacitor pack through bidirectional converters but also mitigate the overvoltage across the main electrical equipment when pantograph arcing occurs. Simulation results show the overvoltage could be reduced and the energy stored in the supercapacitor which could also be used to provide energy for sensors or other devices.

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Pantograph–Catenary Arcing Detection Based on Electromagnetic Radiation

Cited by 33 publications

References 18 publications

Experimental Characterization of Pantograph Arcs and Transient Conducted Phenomena in DC Railways

Experimental Characterization of Pantograph Arcs and Transient Conducted Phenomena in DC Railways

Pantograph Arc Detection of Urban Rail Based on Photoelectric Conversion Mechanism

A Supercapacitor-Based Method to Mitigate Overvoltage and Recycle the Energy of Pantograph Arcing in the High Speed Railway

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