There are three major challenges to the broad implementation of energy storage systems (ESSs) in urban rail transit: maximizing the absorption of regenerative braking power, enabling online global optimal control, and ensuring algorithm portability. To address these problems, a coordinated control framework between onboard and wayside …
Abstract: The electricity consumption of urban rail transit increases year by year with its rapid development. The regenerative braking energy generated by the train can be …
In order to reduce the peak power of traction substation as much as possible and make better use of the configu-ration capacity of battery energy storage system (BESS) in …
Firstly, the simulation platform of an urban rail power supply system, which includes trains and super-capacitor energy storage systems, is established. Then, two evaluation functions from the ...
3.3. Regenerative braking. Regenerative braking consists in recovering and reusing the vehicles'' braking energy in the form of electricity. This technology may offer a great potential to reduce energy consumption in urban rail systems as they are typically characterised by numerous and frequent stops.
of supercapacitor energy storage system for urban rail transit based on operating status of Trains, " Transactions of China Electrotechnical Society, vol. 32, no. 21, pp. 16–23, Nov . 2017.
In 2006, the first Lithium-ion battery in Japan was installed in traction power supply system by the West Japan Railway Company and now more than 20 energy storage systems have already been installed in traction power supply system in Japan. In this article, the recent Japanese trends of regenerative energy utilization are …
As a secondary energy, electric power is clean, but the power of rail transit mainly comes from urban power grid. That is to say, most of the power used in rail transit is traditional thermal power. In order to realize the low-carbon transformation of energy, this paper ...
tive braking energy, the supercapacitor-based energy storage system (SCESS), which consists of the DC/DC converter and supercapacitor modules, is installed in the traction substation, as shown in Fig. 1. The line-voltage-based control strategy is Fig. 1 Fig. 2.
The results show that the proposed BESS control strategy can effectively realize energy transfer and achieve energy saving and voltage stability, and also can effectively reduce the peak power of traction substation, bring more economic benefits. In order to reduce the peak power of traction substation as much as possible and make better use of the …
[Show full abstract] the characteristics of the urban rail traction power supply network . Then, a simulation platform for the energy storage system of the stationary super capacitor applicable to ...
A novel topology of a hybrid energy storage is proposed for a standalone Remote Area Power Supply (RAPS) system consisting of a Doubly Fed Induction Generator (DFIG), dump load and mains loads. In ...
There are great differences in topology, train traction drive system, power supply range, operation frequency, etc. Therefore, the access scheme of ESS is also different. This chapter will analyze the on-board energy storage and ground energy storage schemes. 3.
Traction power supply system is responsible for providing energy and power for urban rail transit, which is an important part of urban rail transit system. In the traction power supply system, digital twin can be applied to build a high-precision digital twin of the system, which is used to obtain the accurate state of the system online.
The energy management system at each level manages the energy objects, such as power supply, energy storage, and load at the individual level respectively to achieve optimal overall results. Download : …
In the urban rail traction power supply system, the load power fluctuates greatly, and the regenerated braking energy waste is serious. The fluctuation of load …
energy storage system (SCESS) plays the role of an energy buffer, which releases energy when the train is accelerating, and recycles the surplus energy when the train is braking,
The composite energy storage system is a complex nonlinear system. Its genetic algorithm has been widely used in multi-objective optimisation. It has also been applied in the parameter optimisation of hybrid electric vehicle components. However, it is rarely used in urban rail trains, which is worth studying [ 7 – 10 ].
The energy feedback system (EFS) is widely accepted to utilize the regenerative braking energy (RBE) in an urban rail traction power supply system (TPSS). However, the sharing relationship of RBE between EFS, traction trains and on-board braking resistors is not clear. In addition, the impact of EFS operation on the sharing of RBE has …
Train regenerative braking energy can supply other train traction state using the same power supply area, so as to reduce the energy consumption of train. But when the train regenerative braking reduces the reliability and security of the urban rail transit, there may be renewable failure situation.
Urban rail transit plays an important role in modern life and consumes a massive amount of energy every day. It is essential to guarantee the high power quality and reliability of the system and maximize energy utilization. Traditional power supply architecture has problems of large fluctuation of power and grid voltage, a waste of braking energy and …
Graber et al. [26] undertook a comprehensive study on the sizing and energy management of on-board hybrid energy storage systems (H-ESS) tailored for urban rail transit.
There are three major challenges to the broad implementation of energy storage systems (ESSs) in urban rail transit: maximizing the absorption of regenerative …
Request PDF | On Sep 15, 2023, Zheng Liu and others published Grid-Connected Topology Design of Urban Rail Photovoltaic-Energy Storage Based on Multi-Port Energy Router ...
Morden railway transportation usually requires high-quality power supplies to guarantee fast and safe operation. Renewable energy such as solar power and wind power, will be highly utilized in future transportation systems. However, renewable energy technologies have issues of instability and intermittence. An energy compensation scheme with …
Abstract: In order to reduce the peak power of traction substation as much as possible and make better use of the configu-ration capacity of battery energy storage system (BESS) …
Recuperation of braking energy offers great potential for reducing energy consumption in urban rail transit systems. The present paper develops a new control strategy with variable threshold for wayside energy storage systems (ESSs), which uses the supercapacitor as the energy storage device. First, the paper analyzes the braking …
Compared with the catenary and rail system, the fourth-rail system can promote system energy efficiency by 23.5% at most. The CF and energy fed to main substations counts for less than 2% and 8% ...
The serious negative sequence (NS) issues and energy shortage problems are aroused by the single-phase 25-kV traction power supply system (TPSS) of high-speed railways. To ...
This paper explores the possibility of using EV''s as temporary trackside energy storage systems on urban light rail systems through the use of bi-directional connection interfaces (chargers), which allow use of the vehicle battery in typical V2X scenarios. The paper uses the city of Sheffield (UK) Supertram network as an example …