Print Email Facebook Twitter An Overview on Medium Voltage Grid Integration of Ultra-fast Charging Stations Title An Overview on Medium Voltage Grid Integration of Ultra-fast Charging Stations: Current Status and Future Trends Author Ahmad, A. (TU Delft DC systems, Energy conversion & Storage) Qin, Z. (TU Delft DC systems, Energy conversion & Storage) Wijekoon, Thiwanka (Huawei’s Nuremberg Research Center) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Date 2022 Abstract The emphasis on clean and green technologies to curtail greenhouse gas emissions due to fossil fuel-based economies has originated the shift towards electric mobility. As on-road electric vehicles (EVs) have shown exponential growth over the last decade, so have the charging demands. The provision of charging facilities from the low-voltage network will not only increase the distribution system's complexity and dynamics but will also challenge its operational capabilities, and large-scale upgrades will be required to meet the inevitably increasing charging demands. An ultra-fast (UF) charging infrastructure that replicates the gasoline refueling network is urgently needed to facilitate a seamless transition to EVs and ensure smooth operation. This paper presents a review of state-of-the-art DC fast chargers, the charging infrastructure's current status, motivation, and challenges for medium-voltage (MV) UF charging stations (UFCS). Furthermore, we consider the possible UFCS architectures and suitable power electronics topologies for UF charging applications. To address the peak formation issues in the daily load profile and high operational expenses of UFCSs, integration of renewable energy sources and energy storage systems due to their technological and economic benefits is being considered. The benefits of line frequency transformer (LFT) replacement with a solid-state transformer (SST), SST models, SST-based UF chargers, and MV SST-based UFCS architectures, as well as related MV active front-end and back-end power electronics topologies, are presented. Finally, the application of microgrids' hierarchical control architecture is considered for chargers and system-level control and management of UFCSs. Subject Electric vehicles (EVs)DC fast chargersultra-fast charging stations (UFCS)renewable energy sources (RESs)energy storage systems (ESSs)line frequency transformer (LFT)solid state transformer (SST) To reference this document use: http://resolver.tudelft.nl/uuid:de0203a0-3266-48cc-8440-fc89f1d7c8ee DOI https://doi.org/10.1109/OJIES.2022.3179743 ISSN 2644-1284 Source IEEE Open Journal of the Industrial Electronics Society, 3, 420 - 447 Part of collection Institutional Repository Document type journal article Rights © 2022 A. Ahmad, Z. Qin, Thiwanka Wijekoon, P. Bauer Files PDF An_Overview_on_Medium_Vol ... nds_1_.pdf 8.33 MB Close viewer /islandora/object/uuid:de0203a0-3266-48cc-8440-fc89f1d7c8ee/datastream/OBJ/view