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Electric Vehicle Charging: Social and Technical Issues Ⅱ

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1027

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Department of Computing and Systems Engineering, University of Zaragoza, Teruel, Spain
Interests: vehicular networks; intelligent transportation system; information technologies; electric vehicle
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Dear Colleagues,

Recent European Environment Agency (EEA) reports such as ‘Electric Vehicles from Life Cycle and Circular Economy Perspectives’ or 'Transport and Environment Reporting Mechanism’ (TERM) show that the transport sector is a key economic sector in Europe.

Reports have suggested that current analysis of the transport sector relates to energy, emissions, climate, environmental noise, cleaner technologies, sustainable mobility, etc. However, a proper interpretation of the significant implications of the electric vehicles from a social and economic perspective is still scarce.

A more in-depth analysis of the bibliography indicates the existence of several gaps in both the social and the technical issues of the electric-vehicle charging process. In general, it predominates empirical research on concrete case studies over big countries. Since the complexity of the study of the electric-vehicle charging, we believe that issues such as improving quality of life (QoL), user profiles, social vehicular network, circular economy, behavior patterns, etc. are parameters to consider in simulations tools. In short, since the studies lack a holistic and multidisciplinary vision that can account for such a multidimensional and complex reality, with this Special Issue, we would like to lay the foundations towards greater interdisciplinary cooperation in addressing electric-vehicle charging is visible.

Prof. Dr. Piedad Garrido Picazo
Guest Editor

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20 pages, 24840 KiB  
Article
Hierarchical Control of Power Distribution in the Hybrid Energy Storage System of an Ultrafast Charging Station for Electric Vehicles
by Alexandra Blanch-Fortuna, David Zambrano-Prada, Oswaldo López-Santos, Abdelali El Aroudi, Luis Vázquez-Seisdedos and Luis Martinez-Salamero
Energies 2024, 17(6), 1393; https://doi.org/10.3390/en17061393 - 14 Mar 2024
Viewed by 777
Abstract
This paper presents a two-level hierarchical control method for the power distribution between the hybrid energy storage system (HESS) and the main dc bus of a microgrid for ultrafast charging of electric vehicles (EVs). The HESS is composed of a supercapacitor and a [...] Read more.
This paper presents a two-level hierarchical control method for the power distribution between the hybrid energy storage system (HESS) and the main dc bus of a microgrid for ultrafast charging of electric vehicles (EVs). The HESS is composed of a supercapacitor and a battery and is an essential part to fulfill the charging demand of EVs in a microgrid made up of a 220 VRMS ac bus, two dc buses of 600 V and 1500 V, respectively, and four charging points. A state machine defines the four operating modes of the HESS and establishes the conditions for the corresponding transitions among them, namely, charging the battery and the supercapacitor from the bus, injecting the current from the HESS into the 1500 V dc bus to ensure the power balance in the microgrid, regulating the bus voltage, and establishing the disconnection mode. The primary level of the control system regulates the current and voltage of the battery, supercapacitor, and dc bus, while the secondary level establishes the operating mode of the HESS and provides the appropriate references to the primary level. In the primary level, sliding mode control (SMC) is used in both the battery and supercapacitor in the inner loop of a cascade control that implements the standard constant current–constant voltage (CC-CV) charging protocol. In the same level, linear control is applied in the CV phase of the protocol and for bus voltage regulation or the current injection into the bus. PSIM simulations of the operating modes and their corresponding transitions verify the theoretical predictions. Full article
(This article belongs to the Special Issue Electric Vehicle Charging: Social and Technical Issues Ⅱ)
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