Modeling and Simulation of Metro DC Traction System with Different Motor Driven Trains

Du, Fei; He, Jinghan; Lu, Yu; Li, M. X.; Bo, Z.Q.; Klimek, A.

doi:10.1109/appeec.2010.5448372

Cited by 13 publications

(8 citation statements)

References 4 publications

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“…The force constant, k, representing not only the motor, but the whole drive-train of the tram, can be approximated to 14 under traction conditions (Du et al, 2010), and to 10 under braking (Yu et al, 2010) for systems similar to Supertram.…”

Section: Research Approachmentioning

confidence: 99%

Increasing urban tram system efficiency, with battery storage and electric vehicle charging

Zhang

Zhao

Ballantyne

et al. 2020

Transportation Research Part D: Transport and Environment

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Section: Research Approachmentioning

confidence: 99%

Increasing urban tram system efficiency, with battery storage and electric vehicle charging

Zhang

Zhao

Ballantyne

et al. 2020

Transportation Research Part D: Transport and Environment

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“…In the braking stage of high-speed area (43s-48s, 123s-128s), T jD will increase much faster than T jQ . This is due to the fact that according to the requirements of EMU motion, more power is needed in the high-speed braking stage than in the traction stage, and the braking power mainly flows through FWD rather than IGBT [23].…”

Section: The Effect Of Fwd and Igbt Actions On Device Accumulatedmentioning

confidence: 99%

Online Fatigue Estimation and Prediction of Switching Device in Urban Railway Traction Converter Based on Current Recognition and Gray Model

Wang

Liu

et al. 2019

IEEE Access

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It is difficult to estimate and predict the fatigue state of switchgear in traction converter of urban Electric Multiple Unit (EMU). At the same time, this is just the purpose of this paper. Firstly, the power loss and junction temperature of the device are analyzed by using the results of electro-thermal simulation and actual working conditions. Then, a novel Bi-directional accelerated fatigue test (BAFT) is proposed, and the data obtained from BAFT are used to establish a fitting fatigue model for a specific switch device. BAFT data enable the fatigue interaction between Insulated Gate Bipolar Transistor (IGBT) and Free Wheeling Diode (FWD) to be displayed in the common switching device module, and the interaction is represented by an acceleration factor. In the fatigue model, the service life and fatigue state of the equipment is related to the equivalent fatigue current which is used to generate the fatigue. The equivalent fatigue current is observed by the proposed analysis identification model. The historical data of fatigue values are subjected to Gray Model (GM) (2, 1) for trend prediction, and then the service time of the switch device is calculated using the predicted fatigue values from GM (2, 1). The examples presented in this paper are based on recorded field data.

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“…In [2]- [12] the modeling and the simulation of the electrical railway system have been fully described. Moreover, in [3] and [4] the new protection method known as DDL has been introduced. In [5] besides introducing different structures of railway supply, the algorithm of the DDL method is evaluated.…”

Section: Index Terms--ddlmentioning

confidence: 99%

“…Therefore, overcurrent protection system is not reliable and capable of proper and on-time fault detection [2]- [4].…”

Section: Railway Supply Line Protectionmentioning

confidence: 99%

A new protection scheme for the DC traction system supply

Hagh

Nouri

et al. 2015

2015 Australasian Universities Power Engineering Conference (AUPEC)

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In this paper a new protection scheme for DC traction supply system is introduced, which is known as 'overload protection method'. In this scheme, with the knowledge of the number of traveling trains between two traction substations and the value of current which is drawn from each substation, the occurrence of short circuit fault is detected. The aforementioned data can be extracted and transmitted from railway traffic control system. Recently DDL ('Détection Défaut Lign in French', which means 'Line Fault detection') protection method is used in supply line protection. In this paper, the electrical system of railway system is simulated using the data obtained from Tabriz (located in Iran) Urban Railway Organization. The performance of the conventional and proposed protection schemes is compared and the simulation results are presented and then the practical measures and requirements of both methods are investigated. According to the results obtained, both methods accomplish satisfactory protection performance; however the DDL protection scheme is severely sensitive to the change in components and supply system parameters and it is also hard to determine the setting range of protection parameters of this method. Therefore, it may lead to some undesired operations; while the proposed protection scheme is simpler and more reliable. Abstract-In this paper a new protection scheme for DC traction supply system is introduced, which is known as "overload protection method". In this scheme, with the knowledge of the number of traveling trains between two traction substations and the value of current which is drawn from each substation, the occurrence of short circuit fault is detected. The aforementioned data can be extracted and transmitted from railway traffic control system. Recently DDL ("Détection Défaut Lign in French", which means "Line Fault detection") protection method is used in supply line protection. In this paper, the electrical system of railway system is simulated using the data obtained from Tabriz (located in Iran) Urban Railway Organization. The performance of the conventional and proposed protection schemes is compared and the simulation results are presented and then the practical measures and requirements of both methods are investigated. According to the results obtained, both methods accomplish satisfactory protection performance; however the DDL protection scheme is severely sensitive to the change in components and supply system parameters and it is also hard to determine the setting range of protection parameters of this method. Therefore, it may lead to some undesired operations; while the proposed protection scheme is simpler and more reliable.

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Modeling and Simulation of Metro DC Traction System with Different Motor Driven Trains

Cited by 13 publications

References 4 publications

Increasing urban tram system efficiency, with battery storage and electric vehicle charging

Increasing urban tram system efficiency, with battery storage and electric vehicle charging

Online Fatigue Estimation and Prediction of Switching Device in Urban Railway Traction Converter Based on Current Recognition and Gray Model

A new protection scheme for the DC traction system supply

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