Energy evaluation of the power network of a DC railway system with regenerating trains

Tian, Zhongbei; Hillmansen, Stuart; Roberts, Clive; Weston, Paul; Zhao, Ning; Chen, Lei; Chen, Mingwu

doi:10.1049/iet-est.2015.0025

Cited by 69 publications

(51 citation statements)

References 35 publications

(41 reference statements)

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“…Renewable energies can conveniently be integrated to the RES with the aid of AC/DC and DC/DC converter modules. Energy storage facilities along the traction line can store the surplus energy, as well as energy from the braking system [14][15][16], which can be utilized by accelerating trains or can also be shared with metropolitan DC railways. Although [2] provides brief information about the basic architecture, advantages, and control of the system, in simulations, equally-spaced trains are considered on the traction line; this is the best-case scenario for a droop control scheme, as each VSC TSS encounters a similar traction line resistance and shares an equal amount of power to the system (simulated in Section 5).…”

Section: System Topologymentioning

confidence: 99%

Adaptive droop control for better current-sharing in VSC-based MVDC railway electrification system

Aatif

Yang

et al. 2019

J. Mod. Power Syst. Clean Energy

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The share of voltage source converter (VSC) technology is increasing in conventional power systems, and it is penetrating into specific transportation systems such as electric vehicles, railways, and ships. Researchers are identifying feasible methods to improve the performance of railway electrification systems (RESs) by utilizing VSC-based medium-voltage direct current (MVDC) railways. The continuous motion of electric trains makes the catenary resistance a variable quantity, as compared to the traction substation (TSS), and affects the currentsharing behavior of the system. A modified droop control technique is proposed in this paper for VSC-based MVDC RES to provide more effective current-sharing while maintaining catenary voltages above the minimum allowable limit. The droop coefficient is selected through an exponential function based on the ratio between the concerned TSS current and the system average current. This enables small adjustments of droop values in less concerning marginal current deviations, and provides higher droop adjustments for large current deviations. Meanwhile, the catenary voltages are regulated by considering the voltage data at the midpoint between two TSSs, which experiences the lowest voltages owing to the larger distance from the TSSs. The proposed techniques are validated via simulations and experiments.

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Section: System Topologymentioning

confidence: 99%

Adaptive droop control for better current-sharing in VSC-based MVDC railway electrification system

Aatif

Yang

et al. 2019

J. Mod. Power Syst. Clean Energy

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“…In the literature, the concept of audit appears in a different context. The first of these concerns the verification of safety management systems (SMS), the implementation of which is required, among others, infrastructure managers [12][13][14]. The audits also concern activities related to technical maintenance of control command and signalling equipment [15].…”

Section: Audit Of the Railway Linementioning

confidence: 99%

“…Another context is the design of property security systems for travellers [16]. An important group of audits are also energy [14,17,18], organization [19], environmental [20][21][22][23][24] and financial audits [25]. Audit also plays a very important role in maintenance systems that are used on the railways [26][27][28][29].…”

Section: Audit Of the Railway Linementioning

confidence: 99%

Method of railway line audit in terms of the condition of railway infrastructure

Bartoś

Gołębiowski

2019

MATEC Web Conf.

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The most important problems concerning the organization of railway traffic is continuous provision and systematic improvement the level of safety of services provided by railway transport enterprises. This safety results from many factors – including condition of the infrastructure, state of superstructure or the way of conducting railway traffic. This article covers railway infrastructure within its scope. In this regard include, among others take appropriate actions to monitor its condition. One of the methods may be the audit of the railway line in terms of infrastructure condition. The purpose of the article is to present the method of railway line audit in the area of infrastructure. The concept of railway line audit from the point of view of infrastructure status was defined in the paper. The audit method was presented along with the identification of problems that may occur as a result of the audit and suggestions for solutions to these problems. The presented method was verified for a selected railway line in Poland railway line No. 12 Skierniewice – Łuków. The possibilities of improving the condition of this line were proposed together with the estimation of the amount of expenditures necessary to make therefore and time gains achieved through improvement.

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“…B. Mohamed, P. Arboleya and C. Gonzalez-Moran [7] have provided a method called a Modified Current Injection to solve the electric railway power flow, whether the substations were reversible or non-reversible. Different simulation methods for electric railways were provided in [8], [9], [10], [11] and [12]. However, all of them were able to just provide the trains contact voltages, and not the track voltage.…”

Section: Takedownmentioning

confidence: 99%

Development of an Electrical Model for Multiple Trains Running on a DC 4th Rail Track

Alnuman

Gladwin

Foster

2018

2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Syst

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Energy evaluation of the power network of a DC railway system with regenerating trains

Cited by 69 publications

References 35 publications

Adaptive droop control for better current-sharing in VSC-based MVDC railway electrification system

Adaptive droop control for better current-sharing in VSC-based MVDC railway electrification system

Method of railway line audit in terms of the condition of railway infrastructure

Development of an Electrical Model for Multiple Trains Running on a DC 4th Rail Track

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