Energy storage tram charging device
Optimal sizing of battery-supercapacitor energy storage systems
Traditional trams mostly use overhead catenary and ground conductor rail power supply, but there are problems such as affecting the urban landscape and exclusive right-of-way [5].At present, new energy trams mostly use an on-board energy storage power supply method, and by using a single energy storage component such as batteries, or supercapacitors.
Energy Storage System Design for Catenary Free Modern Trams
The charging device for the supercapacitor is arranged in the base station and vehicle. The energy storage system on the trams has been convinced to meet the requirements of catenary free tram network for both at home and abroad. This technology improves the technical level of domestic tram development greatly and promotes the development
Optimization of Energy Management Strategy and Sizing in Hybrid Storage
In order to design a well-performing hybrid storage system for trams, optimization of energy management strategy (EMS) and sizing is crucial. This paper proposes an improved EMS with energy interaction between the battery and supercapacitor and makes collaborative optimization on both sizing and EMS parameters to obtain the best working performance of the hybrid
Energy coordinated control of DC microgrid integrated
The supercapacitor has a high relative power density and is a power-based energy storage device with a long charge/discharge cycle life and short response time, which is suitable for fast and frequent charge/discharge applications. The interface converter for energy storage devices commonly uses a half-bridge bidirectional DC/DC converter
Recent developments and applications of energy
The controller can automatically control the state of charge of energy storage devices within the working area, including both metro trains and trams. The term ''energy storage devices'' refers to batteries, flywheels, EDLCs
CN210502289U
The utility model belongs to the technical field of urban rail electric drive system technique and specifically relates to a power battery energy storage formula tram charging device, include the tram that utilizes the pantograph to get electricity from the contact rail, the control system that charges for the energy supply, the on-vehicle energy storage management system who sets
On-Board and Wayside Energy Storage Devices Applications in
This paper investigates the benefits of using the on-board energy storage devices (OESD) and wayside energy storage devices (WESD) in light rail transportation (metro and tram) systems. The analysed benefits are the use of OESD and WESD as a source of supply in an emergency metro scenario to safely evacuate the passengers blocked in a metro train
Supercapacitor and accelerating contact lines hybrid tram
This makes them suitable as on-board energy storage devices in hybrid with accelerating contact lines. Since supercapacitors have low energy density, conventional supercapacitor-powered trams have charging infrastructure installed at every stopping station. This makes it easy and more convincing to have accelerating contact lines to reduce the
Overall capacity allocation of energy storage tram with ground charging
Our current research focuses on a new type of tram power supply system that combines ground charging devices and energy storage technology. Based on the existing operating mode of a tram on a certain line, this study examines the combination of ground-charging devices and energy storage technology to form a vehicle (with a Li battery and a
Tram energy consumption per km for a catenary free section.
Download scientific diagram | Tram energy consumption per km for a catenary free section. from publication: On-Board and Wayside Energy Storage Devices Applications in Urban Transport Systems
Optimisation of a Catenary-Free Tramline Equipped With
Catenary-free trams powered by on-board supercapacitor systems require high charging power from tram stations along the line. Since a shared electric grid is suffering from power superimposition when several trams charge at the same time, we propose to install stationary
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 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 optimal sizing
Energy Efficiency Optimization of Collaborative Power Supply
as the power supply for energy storage trams, the ground energy storage system for regen-erative braking energy, and the auxiliary starting device for internal combustion engines. A series of high-power charging system schemes for supercapacitors have been pro-posed in recent years [12–18]. The priority is to focus on the optimal design of
Overall capacity allocation of energy storage tram with
combines ground charging devices and energy storage technology. Based on the existing operating mode of a tram on a certain line, this study examines the combination of ground-charging devices and energy storage technology to form a vehicle (with a Li battery and a super capacitor) and a ground (ground charging pile) power system.
城市轨道交通研究-2020年（第23卷）第5期-研究报告-《储能式有
The hybrid power supply mode of vehicle energy storage device and catenary has become the development tendency in modern tram power supply technology. It is crucial to design the ground charging scheme reasonably, based on the actual line
Figure A1. Tram tractive effort, braking effort, rolling resistance
Tram tractive effort, braking effort, rolling resistance and efficiency as a function of velocity. from publication: On-Board and Wayside Energy Storage Devices Applications in Urban Transport
Sputtered thin film deposited laser induced graphene based
Micro-supercapacitors (MSCs) are a category of energy storage devices known for high power density and facilitating rapid charging-discharging processes. These are well-suited for devices that
Recent developments and applications of energy storage devices
The controller can automatically control the state of charge of energy storage devices within the working area, including both metro trains and trams. The term ''energy storage devices'' refers to batteries, flywheels, EDLCs and HES devices. HES devices are very promising for future railway applications, because they combine the
城市轨道交通研究-2020年（第23卷）第5期-研究报告-《储能式有
The hybrid power supply mode of vehicle energy storage device and catenary has become the development tendency in modern tram power supply technology. It is crucial to design the
Onboard energy storage in rail transport: Review of
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
CN215154055U
The utility model discloses an energy storage formula tram charging device and tram of remote wireless communication, the device includes: wireless communication system reaches charge control system and on-vehicle energy storage system through wireless communication system communication connection, and wireless communication system includes: the wireless
Energy Storage Systems: Technologies and High-Power
Energy storage systems are essential in modern energy infrastructure, addressing efficiency, power quality, and reliability challenges in DC/AC power systems. Recognized for their indispensable role in ensuring grid stability and seamless integration with renewable energy sources. These storage systems prove crucial for aircraft, shipboard
On-Board and Wayside Energy Storage Devices Applications in
This paper investigates the benefits of using the on-board energy storage devices (OESD) and wayside energy storage devices (WESD) in light rail transportation (metro and tram) systems.
Optimization of Energy Management Strategy and Sizing in Hybrid Storage
supplied in charging stations, the whol e energy requirement of the tram, and the whole energy l oss, respectively. If the hybrid storage system is i nstalled o n the tram, it should not be too
Energy Efficiency Optimization of Collaborative Power Supply
To solve the challenge of low efficiency and high operation cost caused by intermittent high-power charging in an energy storage tram, this work presents a collaborative power supply system with supercapacitor energy storage. The scheme can reduce the peak power of the transformer, therefore reducing the grid-side capacity and improving the
IET Intelligent Transport Systems
The state of charge (SOC) of on-board energy storage determines the reliability of the loop operation of the tram, and the operating capacity of the tram depends on the PSS, that is, the characteristics and capacity of on-board energy storage and the layout of the charging stations. In the design of the PSS, the cost of the PSS is a key factor
SRS: Innovative, safe and automatic charging for trams and
SRS is a conductive ground-based static charging system for trams or electric buses equipped with on-board energy storage. embedded in the road or track surface at the bus or tram stop. When the vehicle is stationary over the device, a current collector shoe lowers automatically and makes contact to charge the battery.
Green Logistics Tram Charging and Path Optimization
The aim of this article is to investigate the optimization of electric vehicle charging and swapping for green logistics, as well as path planning considering urban impedance. We improved a road impedance function model suitable for urban road traffic in China to calculate the actual traffic time based on real-time traffic data and the intricate urban road environment.
Optimal Sizing of On-Board Energy Storage Systems and
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 storage and an expense of
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
Supercapacitor and accelerating contact lines hybrid tram
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]. Briefly, an ACL is a short contact line extending from a stopping station, it is used to supply power to a train during dwelling and acceleration (as the train leaves the
Energy Efficiency Optimization of Collaborative Power Supply
To solve the challenge of low efficiency and high operation cost caused by intermittent high-power charging in an energy storage tram, this work presents a collaborative power supply system with
An On-Board Battery System for Catenary Free Operation of a Tram
An on-board energy storage system for catenary free operation of a tram is investigated, using a Lithium Titanate Oxide (LTO) battery system. The battery unit is charged by trackside power
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 during accelerations due to
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