Analysis of Trackside Flywheel Energy Storage in Light Rail Systems

Gee, Anthony M.; Dunn, R.W.

doi:10.1109/tvt.2014.2361865

Cited by 59 publications

(40 citation statements)

References 42 publications

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“…On-board accumulation is slightly better in terms of efficiency because the losses in the DC system are slightly lower, but wayside energy storage can be more cost-effective since a single accumulation device can be shared by all the trains in the system. Similar conclusions were obtained in [26]; in this work, the use of wayside energy storage improved the overall efficiency by more than 20% and also improved the controllability and the voltage profile of the network. Similar conclusions were obtained in [24,27] supporting the previous conclusions.…”

Section: Introductionsupporting

confidence: 88%

Modeling, Simulationand Analysis of On-Board Hybrid Energy Storage Systems for Railway Applications

et al. 2019

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In this paper, a decoupled model of a train including an on-board hybrid accumulation system is presented to be used in DC traction networks. The train and the accumulation system behavior are modeled separately, and the results are then combined in order to study the effect of the whole system on the traction electrical network. The model is designed specifically to be used with power flow solvers for planning purposes. The validation has been carried out comparing the results with other methods previously developed and also with experimental measurements. A detailed description of the power flow solver is beyond the scope of this work, but it must be remarked that the model must by used with a solver able to cope with the non-linear and non-smooth characteristics of the model. In this specific case, a modified current injection-based power flow solver has been used. The solver is able to incorporate also non-reversible substations, which are the most common devices used currently for feeding DC systems. The effect of the on-board accumulation systems on the network efficiency will be analyzed using different real scenarios.

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Section: Introductionsupporting

confidence: 88%

Modeling, Simulationand Analysis of On-Board Hybrid Energy Storage Systems for Railway Applications

et al. 2019

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“…Additionally, this The most adequate storage device can be determined by the system main characteristics, such as specific energy (Wh/kg), specific power (W/kg), and charge/discharge cycle duration, among others [29]. The main alternatives to be used in the energy recovery from regenerative braking are batteries [30,31], supercapacitors [32,33], and flywheels [34,35]. Among them, the batteries are the most adequate for freight trains [36].…”

Section: Methodsmentioning

confidence: 99%

Regenerative Braking for Energy Recovering in Diesel-Electric Freight Trains: A Technical and Economic Evaluation

et al. 2020

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The present work evaluates the application of regenerative braking for energy recovery in diesel-electric freight trains to increase efficiency and to improve decarbonization. The energy from regenerative braking has to be stored onboard when the track is not electrified. Different technologies of energy recovery are presented and discussed. The energy balance of an existing route is presented and simulated for different battery sizes. The analysis is illustrated with experimental data from an important Brazilian railway. Results show that the energy recovery from regenerative brake is a feasible investment and may be recommended to increase the efficiency in transportation and also to improve the low carbon mobility in railway systems.

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“…However, this kind of inverter is not widely applied in the DC railway due to its poor power quality and bad cost-performance. The installation of energy storage devices (such as super-capacitor, lithium battery or flywheel) at substations or tracksides could be a good alternative to absorb the surplus regenerated energy and regulate DC voltage [6][7][8][9][10][11][12]. However, compared with inverters, some drawbacks of energy storage system are bigger installation space, higher cost, shorter service life and more safety constraints [13].…”

Section: Introductionmentioning

confidence: 99%

Inverter Operating Characteristics Optimization for DC Traction Power Supply Systems

Zhang

Tian

Tricoli

et al. 2019

IEEE Trans. Veh. Technol.

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Analysis of Trackside Flywheel Energy Storage in Light Rail Systems

Cited by 59 publications

References 42 publications

Modeling, Simulationand Analysis of On-Board Hybrid Energy Storage Systems for Railway Applications

Modeling, Simulationand Analysis of On-Board Hybrid Energy Storage Systems for Railway Applications

Regenerative Braking for Energy Recovering in Diesel-Electric Freight Trains: A Technical and Economic Evaluation

Inverter Operating Characteristics Optimization for DC Traction Power Supply Systems

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