Comprehensive integration of Onboard Energy Storage systems …
Comprehensive integration of Onboard Energy Storage systems in tramways: Birmingham tram case study Abstract: Hybridization of rolling stock vehicles with onboard energy …
Energy management strategy optimization for hybrid energy …
Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to …
Innovative power supply technologies for traction systems in …
On-board production of traction energy: This solution applies to conventional diesel buses and the upcoming technology of fuel cell powered trams or buses. In the case of diesel buses, the power chain normally has a mechanical transmission and a high noise level is felt in the area near the diesel engine, which is usually located in the rear of the bus.
Energies | Free Full-Text | Integrated Optimization of Speed Profiles and Power Split for a Tram with Hybrid Energy Storage …
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 …
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 sy.
Onboard energy storage in rail transport: Review of …
Energy management in Siemens ''Combino Plus'' multimodal tram vehicles when rolling on non-electrified sections: (I) acceleration power is supplied by supercapacitors; (II) cruising/coasting power is …
Optimization for a fuel cell/battery/capacity tram with equivalent …
This paper describes a hybrid tram powered by a Proton Exchange Membrane (PEM) fuel cell (FC) stack supported by an energy storage system (ESS) composed of a Li-ion battery (LB) pack and an ultra-capacitor (UC) pack. This configuration allows the tram to ...
Battery Powered Trams | Hitachi Rail
The new technology is based on an onboard energy storage system (OBESS), with scalable battery capacity. It can be installed directly on the roof of existing trams - saving …
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 …
Energy Storage System Design for Catenary Free Modern Trams
According to the 100 A monomer charging and discharging test, each single monomer will actually release energy of 22 Wh. The number of monomers assembled on the vehicle energy storage system is 2160. Therefore, the actual energy storage is 47.6 kWh. Fully Regenerative Braking Power Absorption of Traction System.
Energies | Free Full-Text | Optimization of Energy Management …
There are two kinds of non-grid power supply technologies: sectional ground power supply technology and on-board energy storage technology. The more commonly used is on …
Supercapacitor and accelerating contact lines hybrid tram system
A supercapacitor and accelerating contact line hybrid tram system is proposed. A tram consumes high energy during acceleration but, low energy thereafter. Supercapacitors can be charged fast but, they have low energy density. During acceleration, a tram draws power from accelerating contact line.
Hybrid Energy Storage Trolley System Configuration Optimization …
2.1 HESSThe 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 ...
Energies | Free Full-Text | Optimal Sizing of On-Board Energy Storage Systems and Stationary Charging Infrastructures for a Catenary-Free Tram …
This paper introduces an optimal sizing method for a catenary-free tram, in which both on-board energy storage systems and charging infrastructures are considered. To quantitatively analyze the trade-off between available charging time and economic operation, a daily cost function containing a whole life-time cost of energy …
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 …
Integration of Photovoltaic Plants and Supercapacitors in Tramway Power …
This study analyzed the integration of a photovoltaic power plant, supercapacitor energy storage system, and railway power system. Random optimization was used to verify the feasibility of this integration in a real tramway electric system operating in the city of Naples, and the benefits and total cost of this integration were evaluated.
China''s carbon neutral goal: Foshan leads a silent revolution in green transport with its hydrogen trams …
A tram powered by Ballard Power System''s hydrogen fuel cells arriving at the Zhihu station in the Gaoming district of Foshan city in southern China''s Greater Bay Area on August 18, 2021. A ...
Onboard energy storage in rail transport: Review of real …
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 …
Next-generation traction batteries
A nickel-based traction battery system was specified for the city''s Citadis trams. Nickel technology was chosen for its excellent power storage in a compact, maintenance-free package. The unit was supplied as a ''plug and play'' solution in a custom-built tray, with power, communication, and safety capabilities.
Integrated Optimization of Speed Profiles and Power Split for a Tram with Hybrid Energy Storage …
energies Article Integrated Optimization of Speed Profiles and Power Split for a Tram with Hybrid Energy Storage Systems on a Signalized Route Zhuang Xiao, Pengfei Sun, Qingyuan Wang *, Yuqing ...
Battery Tram Technical Specification | Hitachi Rail
Our trams can operate on sections of routes with no overhead wires, such as historic city centres, and offer range increase of up to 5km. It''s flexible too. The new technology is based on an Onboard Energy Storage System (OBESS), with scalable battery capacity. It can be installed directly on the roof of existing trams - saving on costs all ...
The Charging Control Scheme of On-board Battery Energy Storage System in Tram
Each battery pack of the on-board battery energy storage system includes 324 series and 4 parallels. The capacity of the lithium titanate battery is 10 Ah. In the actual charging process, a battery pack is placed under a certain temperature condition. The maximum chargeable current is related to the state of charge.
(PDF) An On-board Energy Storage System for …
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 ...
Energies | Free Full-Text | Optimal Energy Management Strategy for Repeat Path Operating Fuel Cell Hybrid Tram …
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 …
Optimal sizing of battery-supercapacitor energy storage systems for trams using improved PSO algorithm,Journal of Energy Storage …
Therefore, the optimal sizing method of battery-supercapacitor energy storage systems for trams is developed to investigate the optimal configuration of ESEs based on a constant power threshold. Firstly, the optimal sizing model of HESS taking size, mass, and cost of ESEs as a comprehensive objective function is established.
Hybrid energy storage system topology approaches for use in transport vehicles: A review
These criteria''s include high-energy-density to provide an extensive vehicle range, 7 high-power-density to ensure high performance in terms of acceleration, deceleration, and capturing of regenerative braking energy 8-10; long lifespan to reduce cost, and fast 11
Energy management strategy optimization for hybrid energy storage system of tram …
DOI: 10.1016/j.est.2023.109698 Corpus ID: 265287757 Energy management strategy optimization for hybrid energy storage system of tram based on competitive particle swarm algorithms The traction substation in conventional power supply systems for trams is a ...
Optimal Sizing of On-Board Energy Storage Systems and Stationary Charging Infrastructures for a Catenary-Free Tram …
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 ...
Technical and economic feasibility of increasing tram system efficiency with …
The rated voltage of the Supertram system is 750 Vdc, and the LV distribution voltage of the UK utility grid is 11 kV ac. Hence, the substations transform the 11 kV ac into 750 V dc to supply the catenary and power the trams. The substations utilise a …
Position-Based T-S Fuzzy Power Management for Tram With …
Abstract: Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction systems. This paper investigates an …
Modeling and optimal energy management strategy for a catenary-battery-ultracapacitor based hybrid tramway …
Therefore, the optimal sizing method of battery-supercapacitor energy storage systems for trams is developed to investigate the optimal configuration of ESEs based on a constant power threshold. Firstly, the optimal sizing model of HESS taking size, mass, and cost of ESEs as a comprehensive objective function is established.
EVODRIVE: energy efficiency
EVODRIVE is an on-board system developed by CAF Power & Automation to maximise energy efficiency in rail transportation. At CAF Power & Automation we have developed the EVODRIVE energy storage system, based on ultracapacitors to recover the kinetic energy released on braking. This energy can be reused, improving the vehicle''s energy efficiency.
