on-board energy storage system
Случайные ссылки
Optimal Sizing of On-Board Energy Storage Systems …
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 …
Comparative Study of Energy Consumption for Electric Vehicles with ...
The objective function is shown in (5), ( ) ( )Dregenchw EEnEWEwf âˆ''++= )(min 0 (5) Where bc += and 0E is the initial energy in an energy storage system, DE is the required tractive energy of an electric vehicle, regenE is the regenerative braking energy, chE is the electrical energy obtained from wireless charging, cW and bW are the ...
Peak demand reduction in mining haul trucks utilizing an on-board ...
A mining haul truck driven by electrical wheel motors is powered by a trolley power system during an uphill climb. Retard energy captured during braking action on either the uphill climb or downhill descent is stored by an on-board electrical energy storage system. Electrical power is supplied from the on-board electrical energy storage system to …
Train Speed Trajectory Optimization With On-Board Energy Storage …
Additionally, in the case with on-board ESD, more than 11.6% of net energy consumption can be reduced compared with the one without on-board ESD. This paper indicates that the proposed method is an effective and robust way to study how on-board ESD influences optimal train operation as well as to achieve optimal train speed trajectory with on ...
On-board hydrogen storage systems for automotive application
Storage through glass microspheres is a promising technology for small-scale storage of gaseous hydrogen for vehicular applications. In an automobile, hydrogen diffusion through the walls of the microsphere can be achieved by heating to a temperature level of 200-300 in a high pressure hydrogen environment.
Technologies
Modern energy storage devices permit the storage of braking energy on-board for use in subsequent acceleration phases. Especially in DC system, where energy losses in the distribution network are high, this could be an interesting alternative to feeding back energy into the supply system. Furthermore reduced peak load is beneficial for system ...
Joint optimization combining the capacity of subway …
On-board energy storage devices (OESD) and energy-efficient train timetabling (EETT) are considered two effective ways to improve the usage rate of regenerative braking energy (RBE) of subway …
Train speed profile optimization with on-board energy storage …
Regenerative energy, generated by the braking train, is considered to store into its individual on-board energy storage devices and provided for the follow-up traction operations. Some parameters, including the comfort criterion and increased train mass due to the installation of energy storage devices, are all taken into account in the …
Containerized Maritime Energy Storage | ABB Marine & Ports
ABB''s Containerized Energy Storage System is a complete, self-contained battery solution for a large-scale marine energy storage. The batteries and converters, transformer, controls, cooling and auxiliary equipment are pre-assembled in the self-contained unit for ''plug and play'' use. Available for simple on-deck installation for a wide ...
Optimal energy saving in DC railway system with on-board energy storage ...
A problem of peak power in DC-electrified railway systems is mainly caused by train power demand during acceleration. If this power is reduced, substation peak power will be significantly decreased. This paper presents a study on optimal energy saving in DC-electrified railway with on-board energy storage system (OBESS) by using peak …
Mass minimization of a discrete regenerative fuel cell (RFC) system …
A block diagram of a regenerative fuel cell (RFC) system for on-board energy storage is shown in Fig. 1. The mass of the RFC system is the sum of these components in Eq. (1) (1) M s = m fc + m el + m storage + m rad + m array + m aux where M s is the mass of the RFC system, ...
Optimal Sizing of Onboard Energy Storage Devices for Electrified …
Abstract: For improving the energy efficiency of railway systems, onboard energy storage devices (OESDs) have been applied to assist the traction and recover …
Hierarchical Optimization of an On-Board Supercapacitor Energy Storage ...
Abstract: In order to absorb the regenerative braking energy of trains, supercapacitor energy storage systems (ESS) are widely used in subways. Although wayside ESS are widely used, because of the influence of no-load voltage, and so on, a wayside ESS cannot absorb all the regenerative braking energy in some special cases, …
On board energy storage and control for Inter-City Hybrid EMU
Inter-City Hybrid electric multiple unit (EMU) is very good choice for the cross line transportation between electrified and non-electrified railways. This paper proposes an on board energy storage system (ESS) for inter-city hybrid EMU to absorb braking energy and feed the train for the non-electrified lines. The system and its …
Towards Smart Railways: A Charging Strategy for On-Board Energy …
With the usage of on-board energy storage systems, it is possible to increase the energy efficiency of railways. In this paper, a top-level charging controller for the on-board …
Off-board and on-board energy storage versus …
The present study describes and analyses a set of quasi-static railway power systems models and simulations considering on-board and off-board energy storage systems but also reversible and non …
Efficiency constraints of energy storage for on-board power systems
Energy storage has the potential to reduce the fuel consumption of ships by loading the engine(s) more efficiently. The exact effect of on-board energy storage …
(PDF) An On-board Energy Storage System for Catenary
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 ...
Energy Storage
The SEC-3PH-11-OBC-EVB is a three-phase On Board Charger (OBC) reference design platform achieving state-of-the-art system efficiency with AEC qualified SiC power devices and drivers. Show more. Technical Documents. Battery Energy Storage System Solution Guide. BESS (Battery Energy Storage System) is widely employed in both residential …
Review on Energy Management Strategies of On-Board Hybrid Energy …
If the energy storage system equipped on the train can recycle the braking energy, the economical and environmental protection of urban rail transit systems will be greatly improved. This paper focuses on the energy management of on-board hybrid energy storage system (HESS) for urban rail transit.
Research on Capacity Configuration of On-Board and Wayside
The on-board energy storage system is usually installed on the top or bottom of the train. At present, on-board ESS have been applied in rail transit systems such as Seoul Metro in South Korea, Tokyo Metro in Japan, and trams on the Haizhu Line in Guangzhou, China [6,7,8].
Energies | Free Full-Text | On-Board Cold Thermal Energy Storage System ...
In this study, a recovery system for hydrogen pressure energy in a fuel cell vehicle is proposed. During pressure regulation in the vehicle, an expander is used to recover the pressure energy and produce additional power. In addition, the cold energy of expanded hydrogen is stored in an on-board cold thermal energy storage (CTES) system.
Optimized configuration and economic evaluation of on-board energy ...
The on-board supercapacitor energy storage system for subway vehicles is used to absorb vehicles braking energy. Because operating voltage, maximum braking current and discharge depth of supercapacitor have a great influence on its rational configuration, there are theoretical optimum values based on the analysis of vehicle …
System Design, Analysis, and Modeling for Hydrogen …
Develop and apply a model for evaluating hydrogen storage requirements, performance and cost trade-offs at the vehicle system level (e.g., range, fuel economy, cost, efficiency, mass, volume, on-board efficiency) Provide high level evaluation (on a common basis) of the performance of materials based systems: Relative to DOE technical targets.
Off‐board and on‐board energy storage versus reversible substations in ...
However, in this condition, part of the energy is provided by the on-board energy storage system. The best indicator to verify if the trains are able to consume all the required power is the non-supplied energy (row 8 in Tables 5 and 6 and row 5 in Table 7). As it can be observed, the non-supplied energy in the on-board energy storage cases …
Energy storage system with ultracaps on board of railway …
The on board energy storage system with Ultracaps for railway vehicles presented in this paper seems to be a reliable technical solution with an enormous energy saving potential. Bombardier Transportation has equipped one bogie of a prototype LRV (light rail vehicle) for the public transportation operator RNV in Mannheim with a MITRAC …
Stationary and on-board storage systems to enhance energy …
The most natural way to reuse this energy is either to send it back into other trains that need it or to store into some storage means. The situation is depicted in Fig. 1 and Fig. 2 Fig. 1 the braking energy from train A is sent into train B, while in Fig. 2 it is partly sent into B, partly stored in the storage system located around ESS2. The next …
Onboard Energy Storage Systems for Railway: Present and Trends
This article provides a detailed review of onboard railway systems with energy storage devices. In-service trains as well as relevant prototypes are presented, …
Free Full-Text | Impact of On-Board Hybrid Energy …
At present, on-board hybrid energy storage devices (HESDs) were utilized in some modern railway systems, which can supply traction energy and recover regenerative energy to improve the …
Mass minimization of a discrete regenerative fuel cell (RFC) system …
RFC combined with solar photovoltaic (PV) array is the advanced technologic solution for on-board energy storage, e.g. land, sky, stratosphere and aerospace applications, due to its potential of achieving high specific energy.This paper focuses on mass modeling and calculation for a RFC system consisting of discrete …