Electric locomotive energy storage brake

How does a dual-mode Locomotive braking system work?

The FC is the primary energy source embedded in the dual-mode locomotive. Together with the pantograph, when available, they must supply the total energy consumed by the traction system. However, during braking, the FC current is reduced to limit the energy dissipated in the braking resistor.

Do electric trains use regenerative braking?

Abstract—Electric rail transit systems are large consumers of energy. In trains with regenerative braking capability, a fraction of the energy used to power a train is regenerated during braking. This regenerated energy, if not properly captured, is typically dumped in the form of heat to avoid overvoltage.

How can braking energy be recovered from trains?

One important bonus of railways comes from braking energy recovery. Braking energy of trains can be recovered in storage systems. High power lithium batteries and supercapacitors have been considered. Storage systems can be installed on-board or along the supply network. A simulation tool has been realised to achieve a cost/benefit analysis. 1.

How much braking energy does a freight train use?

In the evaluation driving profile, typical for a French freight train, the braking energy is around 12.8% of the total energy. With the proposed EMS, the energy recovered is around 99.8% of the total braking energy. A second EMS not oriented to reduce the energy in the braking resistor is also evaluated.

What are the different types of train braking systems?

There are several types of train braking systems, including regenerative braking, resistive braking and air braking. Regenerative braking energy can be effectively recuperated using wayside energy storage, reversible substations, or hybrid storage/reversible substation systems. This chapter compares these recuperation techniques.

Is braking energy recovery feasible in high-speed DC railway system?

In order to analyze the feasibility of braking energy recovery in case of the considered high-speed DC railway system, two different models have been developed. They include the feeding electrical substations (ESSs), the network and the trains.