Onboard energy storage in rail transport: Review of
The storage devices featured 600 Wh and 180 kW of rated energy and power, with a total weight of 430 kg and consequent specific energy and power of 1.4 Wh/kg and 418 W/kg, respectively. Experimental tests on the
Energy management and speed profile optimization for hybrid electric trams
An optimal control model has been developed to minimize energy consumption from traction substations with supercapacitors voltage limitations and the effect of trip time on
Optimization of Energy Management Strategy and Sizing in
A tram''s hybrid power system mainly consists of an energy storage system and a motor system. The motor system is connected to the DC bus through the inverter, whose power is all from
Overall capacity allocation of energy storage tram with ground
In recent years, the development of energy storage trams has attracted considerable attention. Our current research focuses on a new type of tram power supply system that combines
Optimization of Energy Management Strategy and
In order to design a well-performing hybrid storage system for trams, optimization of energy management strategy (EMS) and sizing is crucial. This paper proposes an improved EMS with energy interaction between the
Optimisation of a Catenary-Free Tramline Equipped With
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
Optimal Sizing of On-Board Energy Storage Systems
This paper introduces an optimal sizing method for a catenary-free tram, in which both on-board energy storage systems and charging infrastructures are considered. To quantitatively analyze the trade-off between
Optimal sizing of battery-supercapacitor energy storage systems
A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages of each ESE. The optimal sizing
A Hybrid Energy Management Strategy based on Line Prediction
This article focuses on the optimization of energy management strategy (EMS) for the tram equipped with on-board battery-supercapacitor hybrid energy storage system. The purposes of
3 FAQs about [Brazzaville tram energy storage]
What is a battery energy storage system for a tramway?
Typically, storage systems for tramway installations encompass batteries and super-capacitors (SCs) , , . Stationary battery energy storage (BES) systems compared to other technologies improves traction efficiency and reduces associated costs, reaching savings rate of up to 25% , , .
How does a tramway storage bank work?
The storage bank can be installed wayside or on-board. In the first case, the storage system supplies the tramway through the catenary, while in the latter it directly provides energy to the traction machinery. In both cases, the storage system is formed by SCs and batteries, as customary in tramway installations (e.g. see [20, 23 ]).
Can a tramway be supplied from the grid?
It is also worth noting that more energy is purchased from the grid in the case of on-board configuration, despite that in this scenario the tramway cannot be supplied from the grid along catenary-less stretches.