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Proceedings ArticleDOI

Comparative study of investment and efficiency to reduce energy consumption in traction power supply: A present situation of regenerative energy utilization by energy storage system

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TLDR
In this article, some methods to make use of regenerative energy are compared not only in the effect but also in the cost, and other existing choices for eco-friendly energy utilization such as energy saving at station and renewable energy utilization are also compared.
Abstract
Railway is widely recognized as eco-friendly transportation method. For example, in Japan, CO2 emission per person per 1km by railway is about 18g while it is 164g for car and 108g for air plane. On the other hand, the total amount of energy consumption for railway operation is not small and it is important to improve efficiency of energy utilization in traction power supply system more. As one of the most possible solutions to improve energy efficiency in traction power supply system, a regenerative utilization is expected and some energy storage systems have realized in d.c. traction power supply system in Japan. In this paper, some methods to make use of regenerative energy are compared not only in the effect but also in the cost. Other existing choices for eco-friendly energy utilization such as energy saving at station and renewable energy utilization are also compared. In conclusion, regenerative energy utilization by energy storage system has a large potential and will be a practical choice even from the viewpoint of return on investment in the near future.

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Citations
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Journal ArticleDOI

Comparative Analysis of Topologies to Integrate Photovoltaic Sources in the Feeder Stations of AC Railways

TL;DR: The analysis demonstrates that with a progressive integration of PV sources into railway systems, the configurations with power converters supplying the overhead lines could become more beneficial than more classical solutions where the overhead line is supplied via a transformer.
Proceedings ArticleDOI

Effect evaluation of Li-ion battery for regenerative energy utilization in traction power supply system

TL;DR: In this article, the effect of energy storage system for energy saving by making use of regenerative energy is evaluated in detail, according to their experiences, the annual effects of EH storage systems at HAIJIMA SS and OKEGAWA SS are 400MWh/year and 600 or 700MWh /year, respectively.
Journal ArticleDOI

Adaptive Eco-Driving Strategy and Feasibility Analysis for Electric Trains With Onboard Energy Storage Devices

TL;DR: This paper aims to develop the optimal driving strategy of electric trains with three popular types of energy storage devices, namely supercapacitors, flywheels and Li-ion batteries, as the OESD to minimize the net energy consumption.
Journal ArticleDOI

Recent Trend of Regenerative Energy Utilization in Traction Power Supply System in Japan

TL;DR: In this paper, the recent Japanese trends of regenerative energy utilization are summarized not only in DC railway but also in AC railway, and the effects of these systems are also shown quantitatively in this paper.
References
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Proceedings ArticleDOI

Possibility of energy saving by introducing energy conversion and energy storage technologies in traction power supply system

TL;DR: In this article, three realized and under construction projects are summarized which enhance efficiency of traction power supply system, including the installation of lithium ion battery at Haijima Substation on February 20th, 2013 to make use of regenerative power in d.c. traction power and will start operation in the end of 2013 fiscal year.
Proceedings ArticleDOI

Potentials, peculiarities and prospects of solar power generation on the railway premises

TL;DR: In this paper, the potentials, peculiarities and prospects of solar power generation system to the platform roofs of the railway station are discussed, and the realization of solar generation system with lithium ion batteries for local station called zero-emission station is also shown.
Proceedings Article

Necessity and possibility of smart grid technology application on railway power supply system

TL;DR: In this paper, the necessity and future possibility of utilizing regenerative energy and realizing reasonable power supply system based on practical load data is discussed for railway power supply in the smart grid.
Proceedings ArticleDOI

Cost impacts of high efficiency power supply technologies in railway power supply - Traction and Station -

TL;DR: In this paper, the tested and calculated impact of high efficiency power supply and energy saving technologies in railway power supply system for traction and station, office etc. is compared and a comparative study will be instructive to draft a cost target for future development of smart grid and renewable energy technology.
Proceedings ArticleDOI

Survey of power electronics and electric machine application for on-site railway power system in Japan to realize eco-friendly transportation

TL;DR: In this paper, a survey of novel applications of power electronics and electric machine technology for on-site railway power supply system during the last decade in Japan to realize environmentally friendly transportation is conducted.
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