7 research outputs found
Modeling and Simulation of Regenerative Braking Energy in DC Electric Rail Systems
Regenerative braking energy is the energy produced by a train during
deceleration. When a train decelerates, the motors act as generators and
produce electricity. This energy can be fed back to the third rail and consumed
by other trains accelerating nearby. If there are no nearby trains, this energy
is dumped as heat to avoid over voltage. Regenerative braking energy can be
saved by installing energy storage systems (ESS) and reused later when it is
needed. To find a suitable design, size and placement of energy storage, a good
understanding of this energy is required. The aim of this paper is to model and
simulate regenerative braking energy. The dc electric rail transit system model
introduced in this paper includes trains, substations and rail systems