energy storage documentation tram energy
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Investigating electric vehicles as energy storage systems for an …
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 …
Energy storage system in traction vehicle
1 Introduction. Energy storage systems (ESS) are increasingly being used in electric traction as a means of more effectively utilizing regenerative braking energy which, in case of rail vehicles, is a significant part of energy taken from power system because of their large mass, or to maintain proper voltage [1].
Fuzzy energy management strategy for tram with supercapacitors
Energy storage systems (ESS) have large impact on efficiency and reliability of modern electric traction systems. This paper investigates the fuzzy energy management strategy for ESS based on supercapacitors (SC) for human driven trams. Operating the SC on board of a tram brings the following benefits: reduction of peak power demands, decrease of …
Increasing urban tram system efficiency, with battery storage and …
1. Introduction There is a growing interest in ''green'' energy, prompted by both government regulations, and general interest amongst the population in achieving a low carbon future through the adoption of cleaner transportation (Rezvani et al., 2015, Brady and O''Mahony, 2011).).
Line-Voltage Control Based on Wayside Energy Storage Systems for Tramway …
This paper presents a control strategy for the power flow management of a wayside energy storage system based on a supercapacitor technology installed in a tramway network. The control is based on the management in real time of voltage levels at catenary point connections in order to optimize the energy flow among the running …
EV''s as energy storage on urban light rail systems — A synergy of …
The use of urban light rail networks to provide charging of EV''s at locations within a city, and the use of the EV''s as trackside energy storage to capture regenerated energy from trams leads to a win–win scenario, increasing the availability of EV charging, whilst improving the efficiency of the urban light trail systems.
Investigation on Characteristic Parameters Identification and Evolution of Supercapacitor Energy Storage …
Supercapacitors with advantages of high-power density, fast charging speed and long cycle life, have very promising application prospects in many fields such as transportation and energy storage. Usually, the onboard operation profiles will be recorded and sent to remote monitoring terminal for further study. As the working condition of onboard supercapacitor …
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 …
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. …
Energy efficiency of tram emulation with energy storage system
The paper is concerned with construction of the energy efficiency measurement of the tram emulation with the energy storage system. The kinetic energy is accumulated into the supercapacitor during vehicle braking. This energy can be used to accelerate the tram (in next). It is important to save the braking energy of the vehicle, which accelerate very often.
Simulation model of tram with energy storage system
The paper is concerned with description of the simulation model of the tram equipped by the energy storage system using supercapacitors. This paper is also concerned with the construction of the tram emulation with the energy storage system. The tram accumulates the kinetic energy into supercapacitors during vehicle braking. This energy can be used …
Research on Sizing Method of Tram Vehicle Hybrid Energy …
Abstract: In order to design a well-performing hybrid storage system for trams, optimization of energy management strategy (EMS) and sizing is crucial. This paper establishes a …
Integrated Optimization of Speed Profiles and Power Split for a Tram with Hybrid Energy Storage …
Then the charger makes the storage charged with the constant charging current (I cha ) until the amount of energy used in the previous inter-station section is charged. The charging current can be ...
[PDF] 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, and results show that a daily-cost reduction over 30% and a weight reduction over 40% can be achieved. This paper introduces an optimal sizing method for a …
siemenscomrailelectriication Sitras HES
Hybrid energy storage system for rail vehicles. The Sitras® HES hybrid energy storage system will be used for rail vehicles and enables the storage of the braking energy and the operation without overhead contact line. It combines the advantages of powerful double-layer capacitors and traction batteries. Due to its modular design Sitras HES ...
Research on heat dissipation optimization and energy conservation of supercapacitor energy storage tram …
Uneven heat dissipation will affect the reliability and performance attenuation of tram supercapacitor, and reducing the energy consumption of heat dissipation is also a problem that must be solved in supercapacitor engineering applications. This paper takes the vehicle supercapacitor energy storage power supply as the …
Multi-mode Dynamic Proportional Energy Management Strategy for Battery-Supercapacitor Hybrid Energy Storage System of Tram …
DOI: 10.1109/ITEC-AP.2019.8903767 Corpus ID: 208206888 Multi-mode Dynamic Proportional Energy Management Strategy for Battery-Supercapacitor Hybrid Energy Storage System of Tram Based on Pseudo-spectrum …
Research on Sizing Method of Tram Vehicle Hybrid Energy 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 establishes a mathematical model of battery and supercapacitor, compares the topology used in trams. Using adaptive particle swarm optimization(PSO) to optimize the size of battery and …
(PDF) Optimization of Energy Management Strategy and Sizing in Hybrid Storage System for Tram …
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 ...
Energy storage
Energy storage is the capture of energy produced at one time for use at a later time [1] to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential ...
An optimization framework for planning wayside and on-board hybrid storage systems for tramway applications …
SCs are mainly devoted on supplying fast peak loads produced by the tramway during acceleration, while the battery energy storage (BES) system provides large storage capacity [23]. In both cases, DC-DC converters are installed to properly operate the storage devices as well as keep catenary voltage constant [20] .
Energy management strategy optimization for hybrid energy storage system of tram …
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 of energy as well as enhance the service life of the hybrid energy storage system (HESS). Thus, an …
Collaborative optimization of energy management strategy and sizing for the hybrid storage system of tram …
Energy management strategy and sizing are the key steps of the design of tram''s power system and the result has a direct influence on operation characteristics and economic benefit. This paper subscribes an energy management strategy with dynamic power proportion, and makes a collaborative multi-objective optimization of dynamic power …
A Hybrid Energy Management Strategy based on Line Prediction and Condition Analysis for the Hybrid Energy Storage System of Tram …
A battery–supercapacitor hybrid energy-storage system (BS-HESS) is widely adopted in the fields of renewable energy integration, smart- and micro-grids, energy integration systems, etc. Focusing ...
Energy management strategy optimization for hybrid energy …
Energy management strategy optimization for hybrid energy storage system of tram based on competitive particle swarm algorithms. Zhenyu Zhang, Xiaoqing …
Energy Management Method for Hybrid Energy Storage Tram …
Abstract: In order to improve the system efficiency and operational economy of hybrid energy storage (HES) tramway under cycle conditions, this paper presents an energy management method based on equivalent loss instantaneous optimization (ELIO) for lithium battery/supercapacitor hybrid energy storage system (HESS) with dual DC/DC topology.
Energy management and speed profile optimization for hybrid electric trams …
Hybrid electric trams equip with additional on-board energy storage devices to improve the performance of power sources. Both of optimal energy management and velocity control are important to maximum the energy efficiency for catenary-supercapacitors hybrid trams. An optimal control model has been developed to minimize energy consumption from traction …
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.
(PDF) An On-board Energy Storage System for Catenary Free …
On-board energy storage systems have a significant role in providing the required energy during catenary free operation of trams and in recovering …
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 ...
Energy-efficient Train Control Considering Energy Storage …
The optimization of the train speed trajectory and the traction power supply system (TPSS) with hybrid energy storage devices (HESDs) has significant potential to reduce electrical energy consumption (EEC). However, some existing studies have focused predominantly on optimizing these components independently and have ignored the goal …