Modelling and performance analysis of advanced combined co‐phase traction power supply system in electrified railway

Chen, Minwu; Li, Qunzhan; Roberts, Clive; Hillmansen, Stuart; Tricoli, Pietro; Zhao, Ning; Krastev, Ivan

doi:10.1049/iet-gtd.2015.0513

Cited by 75 publications

(36 citation statements)

References 28 publications

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“…However, at the EMU running subsection, as the operation increment current is comprised of the EMU increment current and the fault increment current, the EMU current increases due to the voltage drop of the catenary caused by the fault, so the operation increment current of the catenary is larger than it in the negative feeder. Therefore, if the Equations (21)- (23) are satisfied, the C-NF fault, as Figure 8c indicates, is confirmed.…”

Section: Identification Of Nf-g and C-nf Faultmentioning

confidence: 83%

“…However, the short circuit current increases rapidly, so the increment current of short circuit is larger than that of the EMU. Therefore, Equations (19)- (23), based on increment current, can be used to distinguish the three fault types with high transition resistance at the AT subsection.…”

Section: Relationship Between Two Kinds Of Identification Methodsmentioning

confidence: 99%

“…Nevertheless, fault types are still not identified by multiterminals measuring impendence. In addition, with the increase of EMU power, the measuring impedance decreased [15,23] and the resistance set parameter of the high-speed railway becomes smaller. The ability of distance relays to avoid transition resistance is weakened, which threatens the safety operation of the TPSS.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System

Wang

Chen

et al. 2018

Energies

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The all parallel autotransformer (AT) traction power supply system (TPSS) including several subsections is widely used for high-speed railways. Unfortunately, any fault of catenary and negative feeder will cause all subsections power interruption in the whole system. Moreover, due to the nonlinear relationship between the distance and impedance as well as the symmetry of the system, conventional distance protection schemes fail to identify the fault subsection and the fault types. In this paper, a novel segmental power supply scheme is presented, which can switch the catenary and negative feeder at each AT subsection on and off independently. Based on the theoretical analysis of the electrical characteristics of the traction power network, multiterminals synchronous information is applied and a hybrid fault identification method is proposed, which can accurately identify the fault subsection and fault type. Consequently, only the catenary or negative feeder at the fault subsection will be quickly removed from service without the effect on normal operation of other subsections. Therefore, the reliability of all parallel AT TPSS is improved considerably. This method was verified through simulation and laboratory experiments by the case studies.

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Section: Identification Of Nf-g and C-nf Faultmentioning

confidence: 83%

Section: Relationship Between Two Kinds Of Identification Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System

Wang

Chen

et al. 2018

Energies

Self Cite

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“…However, the negative sequence that may influence system stability is one of the most pressing concerns in AC-DC-AC locomotives. One possible solution is to equip a cophase traction power supply system with a suitable energy storage device on its DC side [17,18]. Thus, the power quality can be considered and there is no need to use the neutral section device at the exit of the traction substation.…”

mentioning

confidence: 99%

“…Thus, the power quality can be considered and there is no need to use the neutral section device at the exit of the traction substation. However, expensive power electronic converters are employed in the aforementioned solutions [17,18].…”

mentioning

confidence: 99%

Power management in co-phase traction power supply system with super capacitor energy storage for electrified railways

Huang

Liao

et al. 2020

Rail. Eng. Science

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Increasing railway traffic and energy utilization issues prompt electrified railway systems to be more economical, efficient and sustainable. As regenerative braking energy in railway systems has huge potential for optimized utilization, a lot of research has been focusing on how to use the energy efficiently and gain sustainable benefits. The energy storage system is an alternative because it not only deals with regenerative braking energy but also smooths drastic fluctuation of load power profile and optimizes energy management. In this work, we propose a co-phase traction power supply system with super capacitor (CSS_SC) for the purpose of realizing the function of energy management and power quality management in electrified railways. Besides, the coordinated control strategy is presented to match four working modes, including traction, regenerative braking, peak shaving and valley filling. A corresponding simulation model is built in MATLAB/ Simulink to verify the feasibility of the proposed system under dynamic working conditions. The results demonstrate that CSS_SC is flexible to deal with four different working conditions and can realize energy saving within the Rail. Eng. Science (2020) 28(1):85-96 https://doi.

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Unified Power Quality Conditioner for V-V Connected Electrified Railway Traction Power Supply System

Sinha¹,

Vidya

Reddy

2023

Advances in Cognitive Science and Communications

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Modelling and performance analysis of advanced combined co‐phase traction power supply system in electrified railway

Cited by 75 publications

References 28 publications

A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System

A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System

Power management in co-phase traction power supply system with super capacitor energy storage for electrified railways

Unified Power Quality Conditioner for V-V Connected Electrified Railway Traction Power Supply System

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