Next-generation Electric Vehicle Charging Station: A Sustainable Solution with Grid Support Functionalities Using Solar PV and Hydrogen Fuel Cell


Özdemir M. B. (Yürütücü)

Diğer Ülkelerdeki Kamu Kurumları Tarafından Desteklenmiş Proje, 2024 - 2027

  • Proje Türü: Diğer Ülkelerdeki Kamu Kurumları Tarafından Desteklenmiş Proje
  • Başlama Tarihi: Nisan 2024
  • Bitiş Tarihi: Nisan 2027

Proje Özeti

The adoption of electric vehicles (EVs) in Qatar's transportation system is on the rise and focus, following the global trend in this sector. It was highlighted that EVs are expected to be 10% of total sales by 2030 in Qatar, with the number of public charging stations to reach 15,000, and with 100% public transport electrification. However, the existing grid infrastructure, in Qatar and globally, is incapable of supporting such increasing number of EVs. This project aims to respond to this point and support the increasing adoption of EVs by offering a clean, sustainable, and reliable energy supply to avoid the negative impacts of unregulated fast charging on the power grid. Hence, as a first goal, it is aimed to develop an environmentally friendly EV charging station that combines a solar PV and battery energy storage with green hydrogen fuel cells to achieve a sustainable and long-term energy supply. The incorporation of the fuel cell system with hydrogen storage not only solves the intermittency problem of solar energy but also enables direct use of hydrogen for industrial purposes or for refuelling fuel cell EVs upon demand. Therefore, the proposed system possesses the potential to serve both battery EVs charging and fuel cell EVs refuelling. The core of the proposed system is the Smart Energy Hub (SEH), which serves as a versatile, efficient, and dependable power supply, capable of intelligent power distribution in EV charging stations. The SEH will be built based on multi-port solid-state transformer, multi-directional power converters, medium-frequency transformer, and using an intelligent control platform based on a real-time controller. An advanced heat management system will be developed to ensure that all system components operate at allowable temperatures. Another challenge that needs to be addressed is the increased complexity of power system operations in Qatar due to the expected rise in the integration of EVs into the power system. EVs have the potential to serve as energy storage for supporting the utility grid by utilizing vehicle-to-grid (V2G) technology, which enables EVs to assist the grid in several ways including peak shaving, demand response services, and maintaining grid’s stability. To that end, this project also aims to examine the grid support functionalities of the charging stations by implementing specific steps that involve developing a region-specific machine-learning based optimal energy flow management and designing a dual-mode (grid-connected and islanded) operation strategy for the charging stations to act as reliable power backups during outages. To evaluate the SEH's performance and grid support functionalities, power-in-the-loop (PIL) testbeds available at both QEERI and TAMUQ will be utilized. After testing all functionalities in the PIL testbeds, the prototype will undergo rigorous testing and validation in QEERI's microgrid testbed, which features PV panels, LiFePo4 battery container, and fuel cells.