An optimal control model has been developed to minimize energy consumption from traction substations with supercapacitors voltage limitations and the effect of trip time on energy consumption is assessed. Hybrid electric trams equip with additional on-board energy storage devices to improve the performance of power sources. Both of optimal energy …
On-board energy storage systems have a significant role in providing the required energy during catenary free operation of trams and in recovering regenerated...
Semantic Scholar extracted view of "Energy management strategy optimization for hybrid energy storage system of tram based on competitive particle swarm algorithms" by Zhenyu Zhang et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar''s Logo. Search 221,988,764 papers from all fields of science ...
Combined with the operation condition of the tram, the optimal sizing model of hybrid energy storage system is established. An improved PSO algorithm with competition …
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 ...
Wayside energy storage installation can be a more efficient and cost-effective solution for off-board braking energy recuperation. They can reduce the energy provided by the AC grid and stabilize the DC grid voltage through …
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 integrated optimization (MPIO) method for the …
The modern tram system is an essential part of urban public transportation, and it has been developed considerably worldwide in recent years. With the advantages of safety, low cost, and friendliness to the urban landscape, energy storage trams have gradually become an important method to relieve the pressure of public transportation.
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 historical operation data, this …
However, power consumption can be optimized by considering regenerative braking, energy management with hybrid energy storage systems and modern air-conditioning systems [2,3,4], while problems like smooth guidance during curve negotiation cannot be easily tackled with the conventional tram design. This is particularly true for noise and ...
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 ...
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. from publication ...
A further economic feasibility on the single ESS installation at Shalesmoor was conducted to illustrate the potential merit of incorporating EVs into the energy storage system on the tram network. The EV batteries are expected to deliver the same energy storage capacity and the same energy-saving as the corresponding stationary ESS does.
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 technology.
This article proposes a rolling optimization strategy (ROS) based on wavelet neural network prediction and dynamic programming (DP) for tram equipped with on-board battery-supercapacitor hybrid energy storage system, and proves the rationality of using RB strategy to replace ROS strategy entirely or partially in some scenarios. This article focuses on …
The storage of enormous energies is a significant challenge for electrical generation. Researchers have studied energy storage methods and increased efficiency for many years.
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 to …
Since the on-board energy storage tram [1, 2] does not need to lay traction power supply lines and networks, it can effectively reduce the difficulty and cost of construction, and the energy storage tram is widely used. In engineering projects, it is necessary to consider both the construction cost and the reliability of the power supply system ...
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 …
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 peak …
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 …
With the increasing energy consumption of urban rail transportation, the on-board hybrid energy storage system, which integrates various energy storage technologies, …
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 ...
The energy storage capacity of a tram is vital as it directly influences operational efficiency, energy management, and the economics of public transport. A tram''s energy storage capacity can generally range from several hundred kilowatt-hours to several megawatt-hours.
In addition to trams, energy storage is also an important downstream application of lithium. Since this year, the energy storage market has attracted much attention, inverter manufacturers Sunshine Power (300274.SZ), Jinlang Technology (300763.SZ) has laid out the energy storage business sector.
The tram''s energy storage system hinges on lithium iron phosphate batteries, comprising the lithium iron phosphate battery pack, high-voltage enclosure, BMS (Battery Management System), and battery thermal management system, as depicted in Fig. 7. Download: Download high-res image (367KB)
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 …
To realize economical operation of a catenary-free tramline, we propose installing a stationary energy storage system (SESS) to assist the electric grid for trams charging. As the tram operation may not be fully aligned with a predetermined timetable, an economical coordination of the electric grid and the SESS under uncertain charging demands …
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 method of battery …
The simulation results show that the energy management strategy based on PMP can ensure the normal operation of tram. Keep the bus voltage of hybrid 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 …
Simms, M.: Hybrid energy storage system: high-tech traction battery meets tram''s hybrid energy storage system requirements. Ind. Technol. 2010(APR/MAY), 20 (2010) Google Scholar Meinert, M.: Experiences of the hybrid energy storage system Sitras HES based on a NiMH-battery and double layer capacitors in tram operation.
The new battery storage will provide enough power for more than 400,000 homes for two hours. Simone Sullivan, Head of Storage at EDF Renewables UK said: "Our upcoming project pipeline will ...
Electric vehicle (EV) is developed because of its environmental friendliness, energy-saving and high efficiency. For improving the performance of the energy storage system of EV, this paper proposes an energy management strategy (EMS) based model predictive control (MPC) for the battery/supercapacitor hybrid energy storage system (HESS), which …
Since a shared electric grid is suffering from power superimposition when several trams charge at the same time, we propose to install stationary energy storage systems (SESSs) for power supply network to downsize charging equipment and reduce operational cost of the electric grid.
Implementation of energy storage system on-board a tram allow the optimised recovery of braking energy and catenary free operation. Figure 3 shows the schematic which allows energy storage to be implemented on-board a tram. The braking resistor is installed in case the energy storage is unable to absorb braking energy. The energy flow
