Saft is supplying MSX nickel technology battery systems for the 1300 new Moskva-2000. trains currently being delivered to the Moskva Metro. Up to 30% lighter and 40% smaller than conventional …
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The first results carried out on real case studies can be very promising, evidencing peaks of about 38.5% of total energy sold back to the grid [].Differently, the installation of energy storage equipment in the RSO''s power system can be considered. ''on-board'' and ...
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These models are used to study the energy consumption and the operating cost of a light rail transit train with and without flywheel energy storage. Results suggest that maximum energy savings of 31% can be achieved using a flywheel energy storage systems with an energy and power capacity of 2.9 kWh and 725 kW respectively.
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Their primary efforts aim to reduce traction energy demand, replace diesel, and limit the impact of electrified overhead infrastructures. From a system-level …
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The on board energy storage system with Ultracaps for railway vehicles presented in this paper seems to be a reliable technical solution with an enormous energy saving potential. Bombardier Transportation has equipped one bogie of a prototype LRV (light rail vehicle) for the public transportation operator RNV in Mannheim with a …
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Supercapacitor energy storage systems (ESS) play a significant role in light rail vehicles LRV with no need for overhead lines and the pantograph. As the ESS of LRV demand short charging time and high-power supply, it is crucial to achieve the rapid energy balancing for series-connected supercapacitor modules of the ESS. To address this issue, this paper …
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Catenary-free technology, such as on-board battery or super capacitor systems, allows power savings of up to 20% by using energy from regenerative braking. …
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Improvement of energy efficiency in light railway vehicles based on power management control of wayside lithium-ion capacitor storage. IEEE Transactions on Power Electronics, 29(1), 275-286. [10] Novales, M. (2011).
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The battery-driven SWIMO vehicle is designed to use 16 GIGACELL battery modules in series with a nominal battery voltage of 576 V DC and a total battery capacity of 115.2 kWh. This allows a distance of over 10 km catenary-free operation. 5.6. Overview of SWIMO vehicle.
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Conventional solar and wind energy harvesters have the advantage of high power output [13, 14], and the clean energy around the railcar or rail is transformed into electric energy to supply to the traction network or the onboard or trackside electrical devices [15, 16], which increases the proportion of renewable energy in power sources …
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Considering the state of charge (SOC) of UC, the speed, and demand power of EV, an energy management strategy (EMS) based on fuzzy logic control (FLC) for the HESS is proposed in this paper. According to the strategy, the battery pack serves as a base power source while the UC pack serves as a transient power source so as to …
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In this paper an optimal energy management strategy (EMS) for a light rail vehicle with an onboard energy storage system combining battery (BT) and supercapacitor (SC) is presented. The optimal targets for the proposed EMS are obtained by an optimization process with multi-objective genetic algorithms (GA). The fitness functions are expressed …
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Yi Li Xiao Zhang Xingjian Dai. Engineering, Environmental Science. 2012. A prototype of flywheel energy storage system is developed for light rail-trains in cities to store the braking energy. The prototype is designed to …
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This paper presents the design and validation process of a supercapacitor storage based light rail vehicle (tramway). The main design aspects of the storage system are described: storage system rating, supercapacitor bank modeling, power electronic converter design and system control and management algorithms. Based on this design …
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on the alignment, at station platforms or vehicle staging locations. On-board energy storage systems provide energy to the propulsions system via a roof mounted unit. Keeping on track since 2004 – with more than 700 vehicles ordered in twelve cities across the
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In this paper an optimal energy management strategy (EMS) for a light rail vehicle with an onboard energy storage system combining battery (BT) and supercapacit.
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The on-board energy storage device can absorb the regenerative braking energy of light rail vehicle to be used as traction energy, and stabilize the traction ne
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June 09, 2013 by Jeff Shepard. Siemens is currently installing the first Sitras SES Energy Storage Unit with supercapacitor technology in the U.S. on the new TriMet Portland-Milwaukie Light Rail Transit Line. The southeast Portland Tacoma substation location will house the first U.S. storage unit that allows for energy created during braking to ...
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Hong Kong has received its first hydrogen-powered light rail train, with a trial run scheduled as part of the city''s plan to develop the use of the energy source to reach its goal of becoming ...
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In this paper, an optimal energy management strategy (EMS) for a light rail vehicle with an onboard energy storage system (ESS) combining batteries (BT) and supercapacitors (SC) is presented. The optimal operating targets for the proposed EMS and ESS sizing (BT+SC) are obtained by multiobjective (MO) optimization with genetic …
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The paper suggests an energy management control strategy of wayside Li-ion capacitor (LiC) based energy storage for light railway vehicles (LRV). The installation of wayside supercapacitor (SC) storage devices, as widely recognized, allows the recovery of the braking energy for increasing the system efficiency as well as a better pantograph …
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This paper reviews the application of energy storage devices used in railway systems for increasing the effectiveness of regenerative brakes. Three main storage devices are reviewed in this paper: batteries, supercapacitors and flywheels. Furthermore, two main challenges in application of energy storage systems are briefly discussed. …
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In this paper an optimal energy management strategy (EMS) for a light rail vehicle with an onboard energy storage system combining battery (BT) and supercapacitor (SC) is presented.
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Abstract. The objective of this paper is to analyze the potential benefits of flywheel energy storage for dc light rail networks, primarily in terms of supply energy reduction, and to present the ...
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Upgrading the existing propulsion based on DC motors with a state-of-the-art three-phase AC traction system. Compact mechanical integration in the available space. Compatibility with three-phase 600 V AC input supply. ABB solution. Standard modules and components (retro-) fitted into old system cabinet.
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The hybrid energy-storage systems, which combine batteries, ultracapacitors and fuel cell stacks, are beneficial to provide energy for the light rail vehicles during the travel [1][2] [3].
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Hybrid energy storage system (HESS) helps to lighten the power supply equipment of light rail vehicles (LRVs), and the static wireless power transfer (WPT) technology can improve the disadvantages ...
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The hybridization of these energy storage systems allows obtaining the advantages of the two different technologies improving ... Light Rail Vehicle using Genetic Algorithms", in IEEE ...
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3.2 Cycle efficiency Cycle efficiency, also known as round-trip efficiency, is the ratio of the output electrical energy to the input electrical energy as a percentage during a full charge/discharge cycle. Therefore, it is a key indicator of energy efficiency. According to [], the cycle efficiency of ESSes can be classified into three levels: very high efficiency …
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Isaac Herrera and others published Optimal energy management of a battery-supercapacitor based light rail vehicle ... one solution is to endow the train with an energy storage system, batteries ...
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Abstract: The hybrid energy storage system (HESS) helps to lighten the power supply equipment of light rail vehicles (LRVs), and the static wireless power …
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This article will propose different energy storage systems, ranging from 0.91 kWh to 1.56 kWh, suitable for a 30 m long tram. To configure the system regarding …
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Hybrid Energy Storage System in Light Rail Vehicles Long Cheng * ID, Wei Wang, Shaoyuan Wei, Hongtao Lin and Zhidong Jia National Active Distribution Network Technology Research Center, Beijing ...
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The proposed energy storage on board of a railway vehicle leads to a big step in the reduction of consumed energy. Up to 30% energy saving are measured in a prototype light rail vehicle, at the same time reducing the peak power demand drastically. Additionally, operation without catenary for several hundred meters was successfully …
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The typical power configuration of pure electric vehicle (EV) contains four major parts: the battery energy storage (BES), the power converter, the driving inverter of motor, and the energy ...
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