Tram us energy storage field

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.

Can EVs be used as energy storage for the tram network?

Therefore, this research assumes that the tram service provider would provide the EV owners, who allow their EVs to be used as energy storage for the tram network, with incentives (e.g. discounted travel perhaps) to compensate for the extra degradation of the EV battery.

Does the ESS provide its own energy to the tram?

Conversely, if the increase of E reg is less than the reduction of energy from E sub, then the ESS provides its own energy to the tram.

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.

How are tram travel data collected?

1. The distance, speed, acceleration and altitude data of example tram journeys that covers all the routes and stops was collected, initially on a second by second basis via a dedicated GPS device, with data collection covering both morning (08:00–12:00) and afternoon (14:00–18:00) travel patterns, on three different weekdays in June 2018. 2.

Can energy storage improve regenerative braking in a light rail system?

An energy storage system (ESS) is considered as an effective measure to improve regenerative braking and hence improve the energy balance of a light rail system, as it can store the un-utilized regenerated electricity and feed the stored electricity back to the supply network when needed ( Morita et al., 2008, Teymourfar et al., 2012 ).