1,720,969 research outputs found
Improvement of Energy Efficiency in Light Railway Vehicles based on Power Management Control of Wayside Lithium-ion Capacitor Storage
No full textWayside ultracapacitors storage design for light transportation systems: A multiobjective optimization approach
No full textA Novel energy management control of wayside Li-Ion capacitors-based energy storage for urban mass transit systems
No full textControl of metro-trains equipped with onboard supercapacitorsfor energy saving and reduction of power peak demand
No full textLine-Voltage Control Based on Wayside Energy Storage Systems for Tramway Networks
No full textThis paper presents a control strategy for the power flow management of a wayside energy storage system based on a supercapacitor technology installed in a tramway network. The control is based on the management in real time of voltage levels at catenary point connections in order to optimize the energy flow among the running tramcars and substations with the goals of improving the energy saving and reducing the voltage drops in
the supply network. The suggested control algorithm was experimentally validated using a laboratory-scale model to verify the effectiveness of the strategy. A lithium-ion capacitor module with 72 series-connected laminated cells of the JSR Micro ULTIMO type was used. Thus, an emulation of a real tramway network in the city of Naples (ANM) was implemented to evaluate the potential impact in terms of costs/benefits of the next installation on the ANM network
An analytical solution for optimal design of stationary Lithium-ion capacitor storage device in light electrical transportation networks
No full textStationary ultracapacitors storage device for improving energy saving and voltage profile of light transportation networks
No full textSpeed-based supercapacitor state of charge tracker for light railway vehicles
No full textThe paper suggests a supercapacitor control for light railway vehicles based on the tracking of the actual train speed. Different configurations in terms of storage capacity and braking resistance power are presented and compared. The proposed control algorithm evaluates analytically the supercapacitor reference current on the basis of the actual train kinetic energy, taking properly into account the efficiencies of the different subsystems. Therefore, on the basis of the size selected for the storage device, the control is capable of recovering the electrical energy during the braking of the train for recharging completely the supercapacitor units and dissipating the extra energy on the braking resistor. Realistic railway vehicle operations are presented by means of numerical simulations referring to different configurations of storage device and braking resistors. The results obtained show that the control is very effective in all the cases considered and that the final choice of the storage size is a trade-off between energy saving and equipment cost
Comparison of energy management control strategy based on wayside ESS for LRV application
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