A Flash Charge System for Urban Transport

As electric mobility becomes more important every day, scientific research brings us new solutions that increase performance, reduce financial and economic impacts and increase the market share of electric vehicles. Therefore, there is a necessity to compare technical and economic aspects of different technologies for each transport application. This article presents a comparison of three bus prototypes in terms of dynamic performance. The analysis is based on the collection of real data (acceleration, maximum speed and energy consumption) under different settings. Each developed prototype uses the same bus chassis but relies on different energy storage systems. Results show that the dynamic bus performance is independent on the three energy storage technologies, whereas technologies affect the management costs, charging time and available range. An extensive experimental analysis reveals that the bus equipped with a hybrid storage (lithium-ion batteries and supercapacitors) had the most favorable net present value, in comparison with storage composed of only lead–acid or lithium-ion batteries. This result is due to the greater life of lithium-ion batteries and to the capability of supercapacitors, which reduce both batteries depth of discharge and discharge rate.

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“…The SC provides through the DC-DC converters some energy directly to the chopper, reducing the energy provided by the battery [31,32].…”

Section: Project 3 (P3): Hybrid Storage Sc and Agm Batteriesmentioning

confidence: 99%

Experimental Data Comparison of an Electric Minibus Equipped with Different Energy Storage Systems

et al. 2020

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Structural and energy storage retrofit of an electric bus for high-power flash recharge

Berzi

Baldanzini

Barbani

et al. 2019

Procedia Structural Integrity

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Operational planning steps in smart electric power delivery system

Jayachandran

Reddy

Padmanaban³

et al. 2021

Sci Rep

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This paper presents a comprehensive review of advanced technologies with various control approaches in terms of their respective merits and outcomes for power grids. Distributed energy storage control is classified into automatic voltage regulator and load frequency control according to corresponding functionalities. These control strategies maintain a power balance between generation and demand. Besides, three basic electric vehicle charging technologies can be distinguished, i.e. stationary, quasi-dynamic and dynamic control. For realizing charge-sustaining operation at minimum cost quasi-dynamic and dynamic strategies are adopted for in-route charging, while stationary control can only be utilized when the electric vehicle is in stationary mode. Moreover, power system frequency stability and stabilization techniques in non-synchronous generator systems are reviewed in the paper. Specifically, a synchronverter can damp power system oscillations and ensure stability by providing virtual inertia. Furthermore, it is crucial to manage the massive information and ensure its security in the smart grid. Therefore, several attack detection and mitigation schemes against cyber-attacks are further presented to achieve reliable, resilient, and stable operation of the cyber-physical power system. Thus, bidirectional electrical power flows with two-way digital control and communication capabilities have poised the energy producers and utilities to restructure the conventional power system into a robust smart distribution grid. These new functionalities and applications provide a pathway for clean energy technology. Finally, future research trends on smart grids such as IoT-based communication infrastructure, distributed demand-response with artificial intelligence and machine learning solutions, and synchrophasor-based wide-area monitoring protection and control (WAMPC) are examined in the present study.

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A Flash Charge System for Urban Transport

Cited by 7 publications

References 13 publications

Experimental Data Comparison of an Electric Minibus Equipped with Different Energy Storage Systems

Experimental Data Comparison of an Electric Minibus Equipped with Different Energy Storage Systems

Structural and energy storage retrofit of an electric bus for high-power flash recharge

Operational planning steps in smart electric power delivery system

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