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. …
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 ...
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 …
ECMS aims at representing the electrical energy from the energy storage system(ESS) such as the LB and UC to equivalent fuel consumption. For the hybrid tram herein, the control focuses on calculating the optimal FC power that minimizes the hydrogen consumption, C, which is the sum of the FC hydrogen consumption C fc (g/s) and the LB …
the DoD of the EV battery exploited for energy storage for the tram network could be regulated < 20% • the life cycle of the EV battery for this application is at a reasonable value of 6,000 • the life cycle is directly inversely proportional to …
Energy management in Siemens ''Combino Plus'' multimodal tram vehicles when rolling on non-electrified sections: (I) acceleration power is supplied by …
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 …
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.
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] .
In a typical three-unit ART tram, the energy storage system boasts a 200 kWh capacity as standard. However, project-specific needs can drive this capacity to over …
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 ...
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 …
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 …
Cloudenergy''s energy storage systems are designed to perform efficiently across a wide range of temperatures, making them ideal for outdoor applications. With a charging temperature range of 0℃ to 45℃ (32℉ to 113℉) and a discharging temperature range of -20℃ to 60℃ (-4℉ to 140℉), our products can effortlessly adapt to ...
Further indicators found in the literature may be derived from the above-mentioned indicators of travel time [7,14,16,52], tram travel time [13] (with variability) [12,51,52], and level of service ...
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 ...
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.
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 characteristics of the energy storage equipment of the tram, which is the tram power supply system, will largely affect the performance of the whole vehicle. Since there is still a lack of a single energy storage element …
Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to …
It is indeed expected that when some energy storage is installed along the line or on-board tram, energy recovery during braking can be enhanced. In fact, even when no enough load is present to adsorb energy from trains that are braking, the storage system can adsorb it, and deliver it at a different time, when enough load is present.
storage systems to improve their energy efficiency. Keywords: hybrid tram; multiple phases integrated optimization; signal control strategy; hp-adaptive pseudospectral method 1. Introduction Trams have been one of the most popular urban rail transit vehicles in
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 …
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 ...
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).
Abstract: Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction systems. This paper investigates an …
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A -. Siemens has launched a new energy storage system, which reduces emissions by up to 80 metric tons of CO2 per year and enables trams to operate without an overhead contact line. The new Sitras HES hybrid energy storage system consists of two energy-storing components: the Sitras MES mobile energy storage unit (double-layer …
A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages …
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 ...