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This study focuses on minimizing fuel consumption of a fuel cell hybrid tram, operated with electric power from both the fuel cell stack and the energy storage system, by optimizing energy distribution between distinct energy sources. In the field of fuel cell hybrid system application, dealing with real-world optimal control implementation
An optimized energy management strategy for hybrid tram is presented. PEMFC, as a clean and renewable energy source, has been intensively developed in transportation such as automotive, As stated before, a SC is used as an energy storage system (ESS) to recover braking power or provide the rapidly changing power.
energies Article Optimal Sizing of On-Board Energy Storage Systems and Stationary Charging Infrastructures for a Catenary-Free Tram Ying Yang 1, Weige Zhang 2, Shaoyuan Wei 2 and Zhenpo Wang 3,* 1 CRRC Zhuzhou Locomotive Co., Ltd., Zhuzhou 412001, China; [email protected] 2 School of Electrical Engineering, Beijing Jiaotong
Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction systems. This paper investigates an ESS based on supercapacitors for trams as a reliable technical solution with considerable energy saving potential. Operating the ESS onboard a tram brings the following benefits: reduction of
Abstract: Trajectory optimization for energy storage tram (EST) aims at finding the optimal speed profile that can reduce the discharge energy of energy storage system (ESS) and absorb the regenerative braking energy as much as possible. This paper proposes a two-level programming framework considering the operational and signaling constraints as
A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages of each ESE. The optimal sizing of HESS with a reasonable combination of different ESEs has become an important issue in improving energy management efficiency.
carefully designed. The energy density of the battery is high, but the power density is low. On the contrary, the power density of the supercapacitor is high, but the energy density is low. In order to improve the dynamic performance of tram, the hybrid energy storage system with battery and supercapacitor has become a hot research direction
A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages of each ESE. The optimal sizing of HESS with a reasonable combination of different ESEs has become an important issue in improving energy management efficiency. Therefore, the
Subsequently, this study designs two energy storage systems (ESSs), the EV energy storage system (EVESS), which solely exploits EV batteries for energy storage, and the combined ESS (CESS), which integrates the EVs with a sub-system of a stationary battery. Both ESS arrangements were found to successfully deliver energy-saving to the tram
A tram with on-board hybrid energy storage systems based on batteries and supercapacitors is a new option for the urban traffic system. This configuration enables the tram to operate in both
GdGranada Tram Ferrocarriles de la Junta de AndalucíaFerrocarriles de la Junta de Andalucía SPAIN 13 5 6513x5 = 65 MCMC -SSTT MC 2012 Nantes Nantes Metropole FRANCE 8x5 = 40 Mc S T S Mc 2012 Besançon Tram Communauté d''agglomération du grand On-board Energy Storage System. . .
urban tram system for the purpose of exploring potential increases in operating. efficiency through the examination of different locations for battery energy storage. Further, the paper suggests the utilisation of Electric Vehicle (EV) batteries at existing. Park and Ride (P&R) sites as a means of achieving additional energy storage at these.
This study focuses on minimizing fuel consumption of a fuel cell hybrid tram, operated with electric power from both the fuel cell stack and the energy storage
1.2. Accelerating contact lines and previous works. To reduce required size of On-Board Energy Storage Device (OBESD), Accelerating Contact Line (ACL) and on-board battery storage hybridization concept was presented in [9, 10] iefly, an ACL is a short contact line extending from a stopping station, it is used to supply power to a train
tram under different energy storage types and different energy supplies: (1) UC storage systems with fast-charging at each station (US-FC); (2) battery storage systems with slow-charging at starting and final stations (BS-SC); (3) battery storage systems with fast-swapping at the swapping station (BS-FS).
Renewable Energy and Power Quality Journal (RE&PQJ) ISSN 2172-038 X, No.15 April 2017. An On-board Energy Storage System for Catenary Free Operation of a Tram. H. M. Al-Ezee, S. Tennakoon, I
Comparative analysis indicates that incorporating tram movement into traffic signals yields excellent results; however, combining such a solution with other energy-saving methods should provide synergistic effects, enabling energy cost reduction and, in the case of trams with energy storage, reducing the required supercapacitor or battery
out of energy, the tram can only slow down or stop. Sizing is the key step of the tram''s hybrid storage system optimization, and it has an impact on the characteristics of the energy storage system.
Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction systems. This paper investigates an ESS based on supercapacitors for trams as a
business centers or the tourist attraction. A tram with on-board energy storage systems (ESSs) can drive autonomy in the catenary-free zones [1]. For the tram with on-board ESSs, a method is called to improve the energy efficiency of the overall system. Apart from energy-efficient design of vehicles,
A tram with on-board hybrid energy storage systems based on batteries and supercapacitors is a new option for the urban traffic system. This configuration enables the tram to operate in both catenary zones and catenary-free zones, and the storage of regenerative braking energy for later usage. This paper presents a multiple phases
The hybrid energy storage tram in this paper uses lithium batteries and supercapacitors as power sources. The battery and the supercapacitor are connected to the DC bus through a bidirectional DC/DC converter, respectively. When the tram is on the state of starting, accelerating, and cruising phase, the lithium battery and the supercapacitor
Schematic diagrams of different energy supplies for the catenary-free tram: (a) UC storage systems with fast-charging at each station (US-FC), ( b ) battery storage systems with slow-charging at
This paper investigates an ESS based on supercapacitors for trams as a reliable technical solution with considerable energy saving potential and proposes a position-based Takagi-Sugeno fuzzy (T-S fuzzy) PM for human-driven trams with an E SS. Energy storage systems (ESSs) play a significant role in performance improvement of
A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages
Simms, M.: Hybrid energy storage system: high-tech traction battery meets tram''s hybrid energy storage system requirements. Ind. Technol. 2010(APR/MAY), 20 (2010) Google Scholar Meinert, M.: Experiences of the hybrid energy storage system Sitras HES based on a NiMH-battery and double layer capacitors in tram operation.
technologies: sectional ground power supply technology and on-board energy storage technology. The more commonly used is on-board energy storage technology. There are some similarities between a tram with on-board energy storage and an electric vehicle. However, there are also some differences.
The storage devices featured 600 Wh and 180 kW of rated energy and power, with a total weight of 430 kg and consequent specific energy and power of 1.4 Wh/kg and 418 W/kg, respectively. Experimental tests on the catenary/EDLC hybrid units showed a modest 1.6% reduction in the peak power demand from the overhead wire during
The new hydrogen tram is the company''s first commercial hydrogen fuel cell model. It is part of Hyundai Rotem''s larger goal to decarbonize rail and implement hydrogen energy across the industry. In addition to this H2 tram, Hyundai Rotem is currently planning a hydrogen-powered train that is expected to be finished in 2027 and will operate
Schematic diagrams of different energy supplies for the catenary-free tram: (a) UC storage systems with fast-charging at each station (US-FC), (b) battery storage systems with slow-charging at
There are two kinds of non-grid power supply technologies: sectional ground power supply technology and on-board energy storage
Abstract: This article focuses on the optimization of energy management strategy (EMS) for the tram equipped with on-board battery-supercapacitor hybrid energy storage system.
The modern tram system is an important part of urban public transport and has been widely developed around the world. In order to reduce the adverse impact of the power supply network on the urban landscape and the problem of large line loss and limited braking energy recovery, modern trams in some cities use on-board energy storage
This paper examines the possible placement of Energy Storage Systems (ESS) on an urban tram system for the purpose of exploring potential increases in operating efficiency through the examination of different locations for battery energy storage. an anticipated clean air zone is expected to promote an increased use of the city''s tram
energy consumption was a subject of interest for design ing energy storage. First, the tram characteristics data was collected. The surveyed tram routes had many operating parameters e.g. time per cycle, number of passengers, and travel distance, etc. Collected data was simulated in order to generate the driving cycle pattern.
result, the whole energy require ment of the tram can b e supplied by the initial energy that the stor age syst em b rings an d th e ch arg ing energ y th at charg ing sta tions pr ovide, a s sh
The on-board energy storage system was simulated as an RC equivalent circuit of a battery model. The parameters of R and C are 180mΩ and 211Farad consequently. During the charging phase of the on-board energy storage system, the nominal value of the high voltage side is 750V.
The Yarra Energy Foundation last year led the installation of a 110kW/284kWh lithium-ion battery energy storage system (BESS) in the inner Melbourne suburb of Fitzroy North – Australia''s first
Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to
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