Tram industrial energy storage cabinet

How much energy does a MTS tram use?

In MTS trams, the Ni-MH battery features rated energy and power of 18 kWh and 85 kW, respectively, while the supercapacitors' rated power output is 288 kW. The total weight of the hybrid storage system is 1646 kg, resulting in specific energy and power of 11.45 Wh/kg and 226 W/kg, respectively.

Why do we need stationary energy storage systems?

Since a shared electric grid is suffering from power superimposition when several trams charge at the same time, we propose to install stationary energy storage systems (SESSs) for power supply network to downsize charging equipment and reduce operational cost of the electric grid.

Do catenary-free trams require high charging power?

Abstract: Catenary-free trams powered by on-board supercapacitor systems require high charging power from tram stations along the line.

Should rail vehicles have onboard energy storage systems?

However, the last decade saw an increasing interest in rail vehicles with onboard energy storage systems (OESSs) for improved energy efficiency and potential catenary-free operation. These vehicles can minimize costs by reducing maintenance and installation requirements of the electrified infrastructure.

What is a wayside energy storage system?

Wayside energy storage installation can be a more efficient and cost-effective solution for off-board braking energy recuperation. They can reduce the energy provided by the AC grid and stabilize the DC grid voltage through proper peak-shaving action. Moreover, their design is not affected by space and weight restrictions.

Why is EMS important in multimodal traction systems?

The EMS is of great importance for safe, reliable, and energy-efficient operation of the multimodal traction system. The following section reviews the architectures and energy management strategies of real multimodal trains. For battery hybrid trains, the onboard energy can be stored in several submodules.