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Energies 2013, 6(4), 1802-1820; doi:10.3390/en6041802

The Use of Energy Storage Systems for Supporting the Voltage Needs of Urban and Suburban Railway Contact Lines

1
Electrical Engineering Department, University of Federico II, Naples, via Claudio 21, 80125 Naples, Italy
2
School of Electronic, Electrical and Computer Engineering, University of Birmingham, Gisbert Kapp Building, Birmingham B15 2TT, UK
*
Author to whom correspondence should be addressed.
Received: 23 November 2012 / Revised: 13 March 2013 / Accepted: 18 March 2013 / Published: 27 March 2013
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Abstract

The paper aims to contribute to the use of electric double layer capacitor (EDLC) sets for boosting voltages of contact lines in urban and suburban railway traction systems. Different electrical configurations of contact lines are considered and investigated. For each of them, proper mathematical models are suggested to evaluate the electrical performances of the contact lines. They give rise, also, to sample design procedures for the sizing of the most appropriate energy storage systems, to be distributed along the lines, for boosting line voltages and avoiding undesired voltage drops. A numerical example based on the “Cumana” suburban Naples railway network is presented to give an idea of the weights and sizes of electric double layer capacitors needed to boost the voltage of a sample contact line. In particular, three different EDLC systems, for a overall installed energy of 9.6 kWh, have been placed nearby the stations presenting the highest voltage drops during the most representative situation of trains’ service. The new voltage drop is equal to 32% of that obtained in absence of EDLCs. View Full-Text
Keywords: energy management; light railway systems; power peak compensation; EDLC storage systems energy management; light railway systems; power peak compensation; EDLC storage systems
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Iannuzzi, D.; Pagano, E.; Tricoli, P. The Use of Energy Storage Systems for Supporting the Voltage Needs of Urban and Suburban Railway Contact Lines. Energies 2013, 6, 1802-1820.

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