To solve the negative sequence (NS) problem and enhance the regenerative braking energy (RBE) utilisation in an electrified railway, a novel energy storage traction power supply system (ESTPSS) is proposed in this
This paper presents an analysis on using an on-board energy storage device (ESD) for enhancing braking energy re-use in electrified railway transportation. A simulation model was developed in the programming
From a system-level perspective, the integration of alternative energy sources on board rail vehicles has become a popular solution among rolling stock manufacturers. Surveys
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
ISO/TR 9968 First edition 2023-06 Reference number ISO/TR 9968:2023(E) The rechargeable energy storage systems (RESS) (e.g. lithium-ion battery systems) used for new energy
We believe that the world needs more sustainable energy sources, and we are committed to offer innovative and reliable energy storage solutions to our customers. Our company produces energy storage systems such as
In the present case the cool thermal energy storage capacity of 24,000 TRH reduced the installation requirement of centralized air-cooled vapour compression air conditioning system from 6000 TR to
In the present case the cool thermal energy storage capacity of 24,000 TRH reduced the installation requirement of centralized air-cooled vapour compression air conditioning system
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The results reveal that on-board HESDs with a higher capacity does not necessarily lead to a higher energy-saving rate; a lower or excessive initial SOC could undermine the energy-saving potential
To solve the negative sequence (NS) problem and enhance the regenerative braking energy (RBE) utilisation in an electrified railway, a novel energy storage traction power supply system (ESTPSS) is proposed in this study.
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.
A hybrid energy storage system has also been reported aiming to smooth out DC traction network power fluctuations, due to moving trains. In this context, a variable gain K iterative learning control (K-ILC) is proposed to balance the DC regulated voltage characteristics and thus lead to optimal lifetime of the battery storage system.
Currently, as the key technology of smart grids and distributed generation, energy storage systems (ESSs) have attracted worldwide attention [24, 25]. The ESS can play a vital role in power demand-side management and load shifting. Moreover, the potential of an ESS in electrified railways has been widely discussed.
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.
A new topology, the energy storage TPSS (ESTPSS), which combines a cascade H-bridge PFC, a single-phase TT and an SC ESS, is presented, and its working principle is discussed. The working pattern of the system is divided, three different working patterns and their power transmission characteristics are elaborated in detail.
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