Regenerative braking energy absorption and utilization of urban rail trains can be achieved in three main ways, such as train operation diagram optimization [4, 5], inverter feedback [] and energy storage [].
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However, the reuse of regenerative energy is another factor that contributes to energy consumption and conservation in multitrain networks. To improve regenerative energy receptivity and energy savings in a bidirectional metro transit network, this study formulated a coordinated train control algorithm that was based on …
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In order to realize the recovery of the braking energy generated by high-power traction motors of the Metro vehicles and reduce the power of the UESS, this paper proposes a control strategy of UESS based on V-I droop characteristics.
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The stationary supercapacitor energy storage systems (SCESS) in urban rail transit systems can effectively recover the regenerative braking energy of the trains and reduce the fluctuation of the traction network voltage. Generally, the charge/discharge states of SCESS is determined by the voltage of the traction network; however, in actual operation, …
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The traditional 25KV electric railways have various problems such as power quality issues, passing neutral sections, complex storage, and utilization of regenerative braking energy, the medium ...
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The data shows that the average share of traction energy obtained from regenerative braking is 27% across members, however there are notable differences between fleets and technologies. Key findings of the study cover areas of energy storage systems, relevant technologies, and benefits of using energy storage systems.
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The function of on-board energy storage device is to directly recover and store the regenerative energy generated by the train during braking, rather than feedback the traction network [9, 10]. Therefore, the on-board energy storage device can be used as an auxiliary power source to reduce the overall energy consumption of the traction power …
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A brake voltage following energy management strategy of ESS is proposed to adjust the charging and discharging threshold voltage based on the analysis of train operation states to realize the maximum usage of the ESS. The utilization of a supercapacitor energy storage system (ESS) to store regenerative braking energy in …
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Depending on the line geometry and the train headways, braking regeneration is usually predicted with a reasonable level of accuracy and with an energy …
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DOI: 10.1016/j.est.2022.106115 Corpus ID: 254329489 Metro traction power measurements sizing a hybrid energy storage system utilizing trains regenerative braking @article{Leoutsakos2023MetroTP, title={Metro traction power measurements sizing a hybrid energy storage system utilizing trains regenerative braking}, author={George …
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Preliminary results confirm the feasibility of the energy saving concept indicating a significant potential for the hybrid energy storage devices and subsequent …
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multi-time scale energy management of urban rail traction networks with distributed photovoltaic–regenerative braking hybrid energy storage systems. In: Journal of …
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SEPTA will capture the regenerative braking energy of trains through a large-scale battery storage system and will deploy that energy as virtual power into PJM''s wholesale power frequency regulation and energy markets. "Through this pilot project, SEPTA will become even more energy efficient, which will help control operating costs ...
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Purpose. Regenerative braking is an efficient energy saving technology in urban rail system, in which the recovery energy from braking trains is collected by some equipments and released to accelerating trains when needed. However, the high cost and low lifetime of storage devices prevent the widespread use of this technology.
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Highlights Super-capacitors are used to store regenerative braking energy in a metro network. A novel approach is proposed to model easily and accurately the metro network. An efficient approach is proposed to calculate the required super-capacitors. Maximum energy saving is around 44% at off-peak period and 42% at peak period. …
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In addition, regenerative braking energy utilization is becoming increasingly important to avoid energy waste in the railway systems, undermining the sustainability of urban railway transportation. However, the intelligent energy management of the trains equipped with OESSs considering regenerative braking energy utilization …
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Metro traction power measurements sizing a hybrid energy storage system utilizing trains regenerative braking. G. Leoutsakos, A. Deloukas, +5 authors. R. …
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regenerative braking energy is bythe use of especially in ESS urban railwaythe system where acceleration and braking processes of trains occur at high frequency and in excess [10]. The aim of this paper is to provide a literature review on the applications of the most widely used energy
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3. Case study: Panama City, Panama To exemplify the application of the proposed methodology, this section presents a case study on the interaction between Panama Metro Line 1 and the surrounding distribution grid. Considering the national plans [64, 65], Panama is looking for an energy transition that implies innovation in the …
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Research: Energy Storage Systems for Regenerative Braking. May 31, 2024. The study builds on the previous COMET study on Energy Efficiency, which was conducted last year as metros experienced increasing energy costs driven up by the conflict in Ukraine. This study examined how members use recovered braking energy and …
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A significant advancement regarding the electrification of transportation has occurred in recent years due to technological developments, environmental concerns, and geopolitical issues in the energy areas all over the world. In this study, a new concept for the integration of rail-based public transportation systems with electric vehicle (EV) parking lots operated …
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It should be pointed out that the storage energy in EES will come from regenerative braking energy (see Figure 2) on the one hand and charging power from grid (see Figure 5) on the other hand. By realizing the function of peak shaving, the economic cost of the whole railway will be reduced.
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An Energy Storage System for Recycling Regenera tive Braking Energy in High-Speed Railway Junyu Chen, Student Member, IEEE, Haitao Hu, Senior Member, IEEE, Yinbo Ge, Student Member,
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Field measurements based energy storage system design with proven feasibility. • Energy re-use of train braking energy using HESS, of 4-6 MWh/day per …
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Metro traction power measurements sizing a hybrid energy storage system utilizing trains regenerative braking Journal of Energy Storage, Volume 57, 2023, Article 106115 G. Leoutsakos, …, R. Hanke-Rauschenbach
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The Regenerative Braking Energy (RBE) of metro trains plays an important role in metro energy saving. If the regenerative energy can be directly absorbed by the adjacent trains, the investment in other RBE usage equipments like super capacitors will be reduced. To increase the RBE usage, the overlaps of traction and braking processes of adjacent …
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Fig. 2 shows the model of battery and ultracapacitor. According to Fig. 2 (a) and (b), the ultracapacitor can be equivalent to three parts of ideal capacitor C, series resistance R s and large resistance leakage resistor R p.Among them, R p determines the long-term storage performance of the ultracapacitor, and R s is very small under normal …
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This article will compare the benefits and constraints of onboard and stationary energy storage systems (ESS) with the aim of reducing the overall energy consumption on a low DC voltage metro network.
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Three main technologies are used at home and board, including train timetable optimization, energy storage solution, and reversible substations. Timetable optimization is a solution …
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Aiming at the recovery and utilization of regenerative braking energy and harmonic control in electrified railway, this paper proposes an energy storage method based on railway power regulator to solve the above problems. In this paper, the harmonic extraction method...
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A regenerative brake. [1] Regenerative braking systems (RBSs) are a type of kinetic energy recovery system that transfers the kinetic energy of an object in motion into potential or stored energy to slow the vehicle down, and as a result increases fuel efficiency. [2] These systems are also called kinetic energy recovery systems.
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Semantic Scholar extracted view of "Metro timetable optimization for improving regenerative braking energy utilization efficiency" by Zhenyu Zhang et al. DOI: 10.1016/j.jclepro.2024.141970 Corpus ID: 268811876 Metro timetable optimization for improving regenerative
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Specifically, the storage, immediate and delayed utilization of regenerative braking energy, and the evolutions of train traffic, passenger load and energy …
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In the process of train braking, the traction motor is transformed from a motor to a generator to convert kinetic energy into electrical energy, which is the regenerative braking energy (RBE). When the RBE generated by the braking train is too large and cannot be directly absorbed and utilized, the network voltage in the power …
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Energies 2023, 16, 5117 2 of 24 Despite many publications regarding these utilization methods, a few papers have paid attention to charge EVs directly from RBE. In [10,11] studies have been conducted regarding the amount of lost RBE in metro system and the
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storage array on the regenerative braking energy of the metro, a 1 MW regenerative energy utilization system consisting of three GTR flywheel devices (333 kW) was tested in a metro traction station
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