Hybrid energy storage technology, which consists of lithium-ion batteries (LiB) and super capacitors (SC), is an effective way to ensure the safety of power supply and realize energy
Discover how seawater desalination energy recovery systems are transforming freshwater production, slashing costs, and paving the way for
For this purpose, wayside energy recovery systems can be used to store excess energy and release it during acceleration of nearby vehicles. They offer further advantages,
In this paper, the stationary super-capacitors are used to store a metro network regenerative braking energy. In order to estimate the required energy storage systems (ESSs),
The second solution is recovery of the regenerative braking energy of trains, which can be provided by trains'' timetable adjustment, use of reversible substations to return
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
Regenerative braking system is a promising energy recovery mechanism to achieve energy saving in EVs (electric vehicles). This paper focuses on a novel mechanical
The quantitative formulas suitable for HESS are deduced to evaluate the regenerative energy recovery rate. Through comparing different power allocation strategies
Train operation chart optimization, energy storage system recovery, and inverter system feedback are the main technical means for its implementation. At present, the recovery
The solution algorithm exhibits promising computational efficiency in real-world experiments. Abstract Focusing on the energy-conservation train operation issues, this paper
The coupling of drive units of electric and hybrid vehicles with flywheel-based kinetic energy recovery systems is one of the best suitable
Due to the short distance between urban rail transit stations, a large amount of regenerative electric energy will be generated. Studying how to recuperate regenerative
A hybrid Energy Storage System termed MetroHESSforesees the storage and reuse of regenerative train braking energy through an active combination of batteries covering base
Abstract Focusing on the energy-conservation train operation issues, this paper proposes an effective real-time train regulation scheme for metro systems with energy storage
Real-time train regulation in the metro system with energy storage devices: An efficient decomposition algorithm with bound contraction General information Publication type Journal
In order to verify the utilization effect of the flywheel energy storage array on the regenerative braking energy of the metro, a 1 MW
In order to minimize the net traction energy consumption (i.e., the difference between traction energy and feedback energy) of trains in a metro system, an energy-saving
For improving the energy efficiency of railway systems, onboard energy storage devices (OESDs) have been applied to assist the traction and recover the regenerative energy.
PDF | On Sep 1, 2021, Chunhui Liu and others published Research on regenerative braking energy recovery strategy of electric vehicle | Find, read and cite all the research you need on
Aiming at the problem that it is difficult to recycle the braking energy generated by the frequent braking of metro trains, this paper puts forward to store and utilize the regenerative braking
Abstract In this paper, a new onboard energy storage system (ESS) is designed. In addition, the experiment system is developed for the energy recovery of the metro vehicle braking. The
PDF | On Jan 1, 2024, Feng Zhao and others published Regenerative Braking Energy Recovery System of Metro Train Based on Dual-Mode Power
With the development of urban rail transit, the energy consumption and carbon emissions of subway operation are increasing. How to reduce the energy consumption of subway operation,
The voltage of DC traction network is decreased to ensure the stability of power network by utilizing regenerative braking energy generated by metro. This paper adds the
The Specifics of Energy Storage Devices and their Disadvantages In urban electric transport (metro, trolleybus, tram), high voltage direct current is used in the supply
Request PDF | On Apr 1, 2012, Reza Teymourfar and others published Stationary super-capacitor energy storage system to save regenerative braking energy in a metro line | Find, read and cite
ABSTRACT In order to realize the cyclic utilization for the regenerative braking energy of a metro, a high-speed flywheel array based on high power density and long life is adopted.
Energy recovery systems capture and reuse energy typically lost in processes like industrial waste heat. They provide significant benefits in both
In recent years, China’s urban rail transportation has developed rapidly. It is in line with the direction of urban railway system development to study the technology of
If there is a high power demand from the low-voltage loads, regenerative energy produced by the metro train could be preferentially fed back to the AC 400 V grid to meet the demand. On the other hand, if the demand is low, the energy could be stored by a device such as a supercapacitor.
In order to fully utilize the regenerative braking energy of metro trains and stabilize the metro DC traction busbar voltage, a hybrid regenerative braking energy recovery system with a dual-mode power management strategy is proposed. Firstly, the construction of the hybrid regenerative braking energy recovery system is explained.
Before connecting the regenerative braking energy recovery system, when a metro train is in traction operation, E tr is provided by the traction substation. When a metro train is in regenerative braking operation, part of the braking energy is returned to the DC bus, and part of it is consumed by the braking resistance of the train.
The energy-storage system consists of supercapacitors and a bi-directional DC/DC conversion circuit. According to the state of the metro train’s operation, the storage system can be controlled to inject or absorb energy, thereby stabilizing the DC busbar and compensating for energy deficiencies.
Metro trains experience frequent regenerative braking during operation, producing a significant amount regenerative braking energy [4, 5].
The metro train is equipped with a braking resistor system. The braking resistor is activated when the DC busbar voltage rises to the limit, consuming the residual braking energy as a final measure to ensure the safety of the DC busbar voltage.
