Energy recovery systems

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Railway Traction > Energy recovery systems

Energy recovery systems

A system installed in 750 1,500 and 3,000 kV railway systems to recover kinetic energy via regenerative braking.  When installed in traction substations, its reversibility is possible, allowing for the transmission of recovered energy to the main distribution grid, the operator´s grid or to the storage system.

Studies carried out show that a saving of 30% to 50% of the energy consumed by the system can be achieved.
  • There is currently a growing interest in improving the energy efficiency of the rail transportation systems. The reasons of this trend are clear:

     To strengthen the positioning of railways as the ecological means of transport as a result of introducing technological developments which are contributing to a reduction in energy consumption and in emissions of atmospheric pollutants
  •  To reduce operating costs.


Nowadays, it is common for the rolling stock to incorporate regenerative braking systems which enable the energy generated during braking to be returned to the catenary.

However, ind.c. system this kinetic energy cannot be used to the optimum degree because, since they are equipped with unidirectional substations, the use of the energy is limited to cases where there is another rail vehicle in the vecinity consuming energy at the same time that the other vehicle is generating it whilst the non-recoverable energy is burnt off in the brake resistors of the vehicle.



Studies carried out show that a saving of 30% to 50% of the energy consumed by the system can be achieved.



Ingeteam solves  all the limitations associated with the return of energy from the units. The equipment installed  in the substation is connected to the main equipment that already exists ( such as transformer or rectifier) to allow the reversibility and the  injection to the electrical grid, to the operator´s internal network, furthermore we can offer an storage solution for your infrastructure.

 

The system incorporates a double converter connected to the catenary, in parallel with the substation’s rectifier to the existing transformer.

INGEBERThe system incorporates a double converter connected to the catenary, in parallel with the substation’s rectifier to the existing transformer.




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