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Train2car Project

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The purpose of this project is to develop an innovative system for the smart management of the direct current grid of the trains and of the associated systems and devices of Metro de Madrid (traction substations, fixed accumulators, possible inverters), by introducing power feed points for electric cars into the grid, in such a way as to maximise the harnessing of the energy regenerated by the trains during braking and the overall efficiency of the system.
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For this purpose a Consortium has been formed, comprised by Metro de Madrid, the Universidad Pontificia de Comillas through its Technological Research Institute (ICAI), the company, Sistemas de Computación y Automática General (SICA), and the research centre, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), in order to address the objectives of the project and successfully undertake the relevant actions within a specified time limit.

The following specific targets have been set for the attainment of the objective described in the first paragraph:

• To develop configurable models and simulators making it possible to analyse the system overall (both the electricity grid as well as the traffic), and to investigate the strategies for the control of the energy regenerated in order to optimise its use. The models and simulators must consider the characteristics of the traction network, the operation and outputs of the various devices (accumulators, voltage transformation elements, etc.), the traction and braking characteristics of the trains and their auxiliary systems, traffic scenarios (peak and off-peak hours), and charging requirement of the electric cars (car fleet, connection points, charging cycles, power, business model, etc.).

• To simulate and design a regenerated energy control system that will implement smart management strategies of the grid and that will make it possible to provide power to the fleet of electric cars for each operation scenario. This design includes the selection and the dimensioning of the devices comprising the system (accumulators, voltage transformers, etc.), their connections and the design of the energy controller which, in the end, will have to manage the flow of energy between the catenary and the cars.

• To develop a prototype of the smart grid in METRO DE MADRID which will enable the testing and validation of the strategies developed.

This project is financed through the INNPACTO 2011 call for proposals, published by the Ministry of Science and Innovation and managed at the present time by the Ministry of Economy and Competitiveness.

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