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COLLABORATIVE OPTIMIZATION OF MANAGEMENT STRATEGY …

implementation of clean energy policy and the demand for safety and aesthetics, the tram with onboard storage system has been widely studied. To meet the needs of high power …

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Energies | Free Full-Text | Optimization of Energy Management …

In order to design a well-performing hybrid storage system for trams, optimization of energy management strategy (EMS) and sizing is crucial.

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topology of hybrid energy storage tram As shown in …

The topology structure can make the number of cells and supercapacitors more reasonable, and make the energy management efficiency of hybrid energy storage system of tram higher. Source ...

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Optimal sizing of battery-supercapacitor energy storage systems …

A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages …

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Comparison study on life-cycle costs of different trams powered …

Life-cycle costs of five types of trams and related facilities are compared: 1) pantograph/catenary trams, 2) contact-rail trams, 3) fuel-cell hybrid trams, non …

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Skeleton Technologies

Skeleton Technologies. Skeleton Technologies is an energy storage developer and manufacturer for transportation, grid, automotive, and industrial applications. Skeleton is developing a novel raw material, curved graphene, [1] to produce solutions for the energy storage market, including high-power supercapacitors and high-energy solid-state ...

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Avenio M Trams

The first production tram was rolled out from the Siemens factory in Wien in December 2017 and deliveries were concluded in December 2018. ... Vehicles incorporate electro-dynamic braking and can be fitted with an optional on-board energy-storage unit, which can be used for storing braking energy through to catenary-free operation. The Avenio M ...

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Tram modernisation in Alexandria/ Egypt

The French ambassador to Egypt revealed in mid-July 2019 that France is preparing the provision of € 100 million for the modernisation of Alexandria''s tram network through the Agence française de développement (AFD). …

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Position-Based T-S Fuzzy Power Management for Tram With Energy Storage ...

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 …

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Technical and economic feasibility of increasing tram system …

Separate and common overhead catenary systems (OCS) are widely utilised on urban light-rail systems. This paper applies Simulink modelling to investigate …

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Skeleton to supply ultracapacitors for CAF P&A''s OESS-powered trams …

Credit: Marek Rucinski on Unsplash. Skeleton Technologies has secured a contract to deliver ultracapacitors for trams powered by CAF Power & Automation''s (CAF P&A) onboard energy storage systems (OESS). The Skeleton cells will be included in the Greentech OESS portfolio that is used by multiple railway companies for catenary-free …

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Optimal sizing of battery-supercapacitor energy storage systems for trams …

Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to enable a reasonable distribution of demand power among the storage elements, efficient use …

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A Hybrid Energy Management Strategy based on Line Prediction …

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. …

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Multi-objective planning-operation co-optimization of renewable energy system with hybrid energy storage…

Different ES technologies are employed in HRES, such as battery energy storage (BES), pumped hydro storage, thermal energy storage (TES), compressed air energy storage and hydrogen storage [9]. Rahman et al. [ 10 ] extensively reviewed the techno-economic and environmental assessments of different ES technologies to give a …

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Increasing urban tram system efficiency, with battery storage and ...

The Supertram network consists of three lines (or routes) and 48 stops. There are also 12 substations to supply energy to the system. The map of the Supertram is shown in Fig. 1.The substations are located at the stops identified with a red underline in Fig. 1.There are also overlaps between lines where the routes utilise the same rails, for …

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Overall capacity allocation of energy storage tram with ground …

(Overhaul and Maintenance Factory, China Yangtze Power Co., Ltd., Yichang 443000, Hubei, China) Abstract: In recent years, the development of energy storage trams has attracted considerable attention. Our current research focuses on a new type of tram

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Optimization of Energy Management Strategy and Sizing in …

A tram''s hybrid power system mainly consists of an energy storage system and a motor system. The motor system is connected to the DC bus through the inverter, whose power is all from the hybrid ...

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Energies | Free Full-Text | Optimal Sizing of On-Board Energy Storage Systems and Stationary Charging Infrastructures for a Catenary-Free Tram …

To improve the energy efficiency and meet the operation area without catenary, an on-board energy storage systems (OESS) has been utilized in urban …

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Onboard energy storage in rail transport: Review of real …

Since 2016, tram vehicles running on the tramway line in Doha, Qatar, have been equipped with Sitras HES devices for catenary-free operation on the entire …

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Overall capacity allocation of energy storage tram with …

(Overhaul and Maintenance Factory, China Yangtze Power Co., Ltd., Yichang 443000, Hubei, China) Abstract: In recent years, the development of energy storage trams has attracted considerable attention. Our current research focuses on a new type of tram power supply system that combines ground charging devices and energy storage technology.

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Energies | Free Full-Text | Optimal Energy Management Strategy …

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 …

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An optimization framework for planning wayside and on …

This way, braking energy can be stored rather than dissipated in order to boost up the efficiency of the installation. In [15], a comparison of a tramway system without energy storage and a tramway equipped with Li-ion batteries was performed. In this case, only wayside configuration was analyzed while the possibility of on-board installation ...

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Multi-objective planning-operation co-optimization of renewable energy ...

The simplified configuration of wind-PV-battery-TES hybrid power system is shown in Fig. 1, which mainly includes wind and PV farms, converters, battery, Electric Heater (EH) based on resistive heating, two-tank molten salt thermal energy storage and power block based on steam Rankine cycle.Wind farm and power block are connected to …

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The Charging Control Scheme of On-board Battery Energy Storage …

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 …

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Optimized operation combining costs, efficiency and lifetime …

The energy storage system consists of a 14.28 kWh rated energy lead acid-battery [22] and a hydrogen system of 3.04 kWh at 1.2 kW rated power. The lead-acid battery is connected to the DC bus using a bidirectional DC/DC converter governed by the energy management system to store or deliver energy from or to the DC bus.

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A Hybrid Energy Management Strategy based on Line Prediction …

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 purposes of the optimization are to prolong the battery life, improve the system efficiency, and realize real-time control. Therefore, based on the analysis of a large number of …

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Egypt signs $656m deal with Hyundai Rotem for new Cairo Metro …

AFP. Egypt has signed a $656 million deal with Hyundai Rotem to upgrade Cairo''s Metro and help localise the industry, the Egyptian Ministry of Transportation said on Wednesday. The South Korean company will manufacture and supply 320 cars and 40 trains for the city''s second and third metro lines in the agreement signed with Egypt''s ...

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Energy management strategy optimization for hybrid energy storage system of tram …

Since there is still a lack of a single energy storage element with high power density and energy density to meet the vehicle operation requirements [6,7]. A common solution for on-board power supply systems is to use two or more energy storage devices in combination to synthesize their respective advantages and optimize the …

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Urban Mobility in Greater Cairo: A history of patchwork solutions.

Then the article touches upon the early attempts by the state to control the operation of public transport in Cairo, the impact of the 1970s'' economic crisis on the bus and tram networks in ...

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Position-Based T-S Fuzzy Power Management for Tram With Energy Storage …

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 …

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Energy management strategy optimization for hybrid energy storage ...

The characteristics of the energy storage equipment of the tram, which is the tram power supply system, will largely affect the performance of the whole vehicle. Since there is still a lack of a single energy storage element with high power density and energy density to meet the vehicle operation requirements [6, 7]. A common solution for on ...

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Cairo Tramways Company – شركة تراموي القاهرة – La fabrique du …

The Société des Tramways du Caire was established in 1895 to utilize the tramway construction concession in Cairo, obtained by Baron Ed. Empain in 1894, expiring in 1976. In 1900, already 11,245,960 passengers travelled in its networks and 35,637 meters was the total length of the line and constantly growing. In 1905-1906, 36,531,630 ...

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Supercapacitor and accelerating contact lines hybrid tram system

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 …

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Transport in Cairo

The Cairo Metro is the first rapid transit system in Greater Cairo, Egypt and the first of only two full-fledged metro systems in Africa and only four in the Arab world. It was opened in 1987 as Line 1 from Helwan to Ramsis square, with a length of 29 kilometres (18.0 mi). As of 2014, the Cairo Metro has 61 stations (mostly At-grade), of which three are transfer …

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Model-based investigation of an uncontrolled LTO wayside energy storage …

Wayside energy recovery systems (WERS), i.e. stationary energy storage systems that are connected to the tram grid, absorb this excess energy and thus improve the energy efficiency or increase voltage stability. Simulations of DC tram grids with WERS are an important tool to find the optimal system design and evaluate the operation.

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Optimization of Energy Management Strategy and Sizing in Hybrid Storage …

optimization on both sizing and EMS parameters to obtain the b est worki ng performance o f the. hybrid storage system. This paper de monstrates the whole process o f the improvement of the EMS ...

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Cairo Tramways Company – شركة تراموي القاهرة

The Société des Tramways du Caire was established in 1895 to utilize the tramway construction concession in Cairo, obtained by Baron Ed. Empain in 1894, expiring in 1976. In 1900, already 11,245,960 passengers travelled in its networks and 35,637 meters was the total length of the line and constantly growing. In 1905-1906, 36,531,630 ...

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Comprehensive integration of Onboard Energy Storage systems in tramways: Birmingham tram …

Hybridization of rolling stock vehicles with onboard energy storage systems in AC and DC electrification system is a realistic future trend that will transform the railway industry. In this emerging market even nowadays there are challenges related to the optimization of the storage system and its design, with the goal of minimizing TCO and fulfilling current …

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Comprehensive integration of Onboard Energy Storage ...

Hybridization of rolling stock vehicles with onboard energy storage systems in AC and DC electrification system is a realistic future trend that will transform the railway industry. In this emerging market even nowadays there are challenges related to the optimization of the storage system and its design, with the goal of minimizing TCO and fulfilling current …

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