Zhuang Xiao & Pengfei Sun & Qingyuan Wang & Yuqing Zhu & Xiaoyun Feng, 2018. "Integrated Optimization of Speed Profiles and Power Split for a Tram with Hybrid Energy Storage Systems on a Signalized Route," Energies, MDPI, vol. 11(3), pages 1 …
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 …
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 …
Each battery pack of the on-board battery energy storage system includes 324 series and 4 parallels. The capacity of the lithium titanate battery is 10 Ah. In the actual charging process, a battery pack is placed under a certain temperature condition. The maximum chargeable current is related to the state of charge.
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 ...
In addition to showing how recycled materials could be used to build efficient energy storage devices, the research could lead to environmental and socioeconomic change. "It can open a way for a new industry and open many work opportunities to recycle batteries and use the recycled materials for a plethora of other …
Compared with traditional tram powered by a DC catenary, energy efficiency of the catenary-free tram can be enhanced considerably due to increased recuperation of braking energy [4], [5]. For traditional tramlines, the regenerative energy of the trams is not stored, but rather immediately delivered to adjacent trams that are in an …
On March 15, 2023, Shenzhen Hailei New Energy Co., Ltd. obtained the TÜV Mark certification for the energy storage system 2pfg 2698 and the VDE-AR-E 2510-50 standard of TÜV Rheinland Greater China. Hailei New Energy was awarded the TUV Mark certificate for energy storage system issued by TUV Rhein
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 …
Cette carte du tram de Cairo vous permettra de planifier facilement vos itinéraires dans les trams de Cairo en Egypt. Le plan tramway Cairo est téléchargeable en PDF, imprimable et gratuit. Les origines du tramway du Caire remontent à 1894, date à laquelle l''Égypte est passée sous domination britannique.
Trajectory optimization for energy storage tram (EST) aims at finding the optimal speed profile that can reduce the discharge energy of energy storage system (ESS) and absorb the regenerative braking energy as much as possible. This paper proposes a two-level programming framework considering the operational and signaling constraints as well as …
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 catenary …
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.
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 ...
To date, various energy storage technologies have been developed, including pumped storage hydropower, compressed air, flywheels, batteries, fuel cells, electrochemical capacitors (ECs), traditional capacitors, and so on (Figure 1 C). 5 Among them, pumped storage hydropower and compressed air currently dominate global …
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 …