This paper presents a proposal to modify power supply systems currently used in ac-fed railways with neutral zones (NZs), in order to allow power-flow routing. The proposed system complements the existing infrastructure with additional power-electronic devices connected in parallel to both sides of the NZs, allowing control of power flow through adjacent electrical sections. The description and control of such a modified railway system is outlined in this paper. In addition, a mixed-integer programming optimization problem is formulated, which minimizes the investment and the operation costs, while ensuring the power supply to the train traffic. This optimization model is used to allow a systematic evaluation of the benefits of implementing such a railway smart grid system. Finally, a section of the high-speed line between Madrid and Barcelona is used as a case study, and the advantages of the proposed system are quantified in two different scenarios.
Smart Electrical Infrastructure for AC-Fed Railways With Neutral Zones
IEEE Transactions on Intelligent Transportation Systems ; 16 , 2 ; 642-652
2015-04-01
2684334 byte
Article (Journal)
Electronic Resource
English
Smart Electrical Infrastructure for AC-Fed Railways With Neutral Zones
Online Contents | 2015
|British Library Conference Proceedings | 2014
|Engineering Index Backfile | 1915
|Assuring the safety of railways in earthquake zones
Tema Archive | 1998
|