article · Energy Reports
This article provides a comprehensive overview of electric vehicles (EVs), examining their fundamental categories, charging methodologies, and integration into smart electrical grids. It explores advanced charging technologies such as wireless power transfer and communication between charging stations and central systems. The research details current EV battery charger configurations, operational modes, and power regulation strategies, classifying them by power capacity into Level 1, Level 2, and Level 3. Emerging charging technologies and the design of AC/DC converter topologies for DC fast charging stations are also discussed. Furthermore, the article introduces vehicle-to-grid (V2G) communications, vehicle-for-grid (V4G) reactive power compensation, and the application of Model Predictive Control (MPC) algorithms with artificial intelligence for fast chargers.
This research is important because electric vehicles are central to future sustainable transport and energy systems. Understanding their technologies, charging infrastructure, and grid integration challenges is crucial for developing efficient, reliable, and smart electrical grids that can support widespread EV adoption.
This review provides foundational knowledge for developers of electric vehicle charging infrastructure and smart grid technologies. It identifies current and future technological pathways for advanced charging, grid integration, and power management, which could inform the design of next-generation charging stations and vehicle-to-grid systems. This appears to be early-stage research, providing a comprehensive overview for future applied development.
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The aim of this article is to provide a comprehensive overview of electric vehicles (EVs), covering various related aspects, and addressing the emerging challenges and future prospects associated with them. Within this framework, an examination is conducted of the fundamental categories of electric vehicles (EVs) and the related charging methodologies. Given that EVs are anticipated to play a pivotal role in upcoming smart electrical grids (SEG), deliberations also extend to the intricacies of grid integration, along with explorations into advanced charging methodologies such as wireless power transfer and communication between station and center with wireless (WIFI, WIMAX, 5G). This article also examines the current state of EV battery (EVB) chargers in terms of converter configurations, operational modes, and power regulation strategies for electric vehicles. EVB chargers are categorized according to their power capacities and the direction of power flow. Based on power ratings, these chargers are classified into Level 1, Level 2, and Level 3. Certain emerging charging technologies that have the potential to significantly influence the future of energy storage in the realm of transportation electrification have been discussed. Regarding the future of EV station chargers focused on DC fast charging stations, this paper conducts an examination of the design and assessment of various AC/DC converter topologies in the current context, as well as future strategies for integrating them into DC fast-charging infrastructures. With this aim, the fundamental characteristics and prerequisites for vehicle-to-grid (V2G) communications, and prospects for future advancements and electrification scenarios are also introduced and examined. Compensation reactive power is presented also as V4G (vehicle-for-grid) and some technologies are used to compensate the grid. Ultimately, the Model Predictive Control (MPC) algorithm has been elaborated upon using various approaches to provide a deeper understanding of its application in fast chargers through the utilization of artificial intelligence techniques.
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DOI: 10.1016/j.egyr.2024.04.002
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