2024 | Ahmed Zentani, Ali Almaktoof, and Mohamed T. Kahn
This paper provides a comprehensive review of developments in electric vehicle (EV) fast charging technology, covering various fast charging techniques, advanced infrastructure, control strategies, and emerging challenges and future trends. It discusses techniques such as inductive charging, ultra-fast charging (UFC), DC fast charging (DCFC), Tesla Superchargers, bidirectional charging, and battery swapping, analyzing their advantages and limitations. Advanced infrastructure for DCFC is explored, including charging standards, connector types, communication protocols, power levels, and charging modes. EV battery chargers are categorized into on-board and off-board systems, with detailed functionalities provided. The status of DCFC station DC-DC converters is presented, emphasizing their role in optimizing charging efficiency. Control strategies for EV systems are analyzed, focusing on effective charging management while ensuring safety and performance. Challenges and future trends in EV fast charging are thoroughly explored, highlighting infrastructure limitations, standardization efforts, battery technology advancements, and energy optimization through smart grid solutions and bidirectional chargers. The paper advocates for global collaboration to establish universal standards and interoperability among charging systems to facilitate widespread EV adoption. Future research areas include faster charging, infrastructure improvements, standardization, and energy optimization. Encouragement is given for advancements in battery technology, wireless charging, battery swapping, and user experience enhancement to further advance the EV fast charging ecosystem. In summary, this paper offers valuable insights into the current state, challenges, and future directions of EV fast charging, providing a comprehensive examination of technological advancements and emerging trends in the field.This paper provides a comprehensive review of developments in electric vehicle (EV) fast charging technology, covering various fast charging techniques, advanced infrastructure, control strategies, and emerging challenges and future trends. It discusses techniques such as inductive charging, ultra-fast charging (UFC), DC fast charging (DCFC), Tesla Superchargers, bidirectional charging, and battery swapping, analyzing their advantages and limitations. Advanced infrastructure for DCFC is explored, including charging standards, connector types, communication protocols, power levels, and charging modes. EV battery chargers are categorized into on-board and off-board systems, with detailed functionalities provided. The status of DCFC station DC-DC converters is presented, emphasizing their role in optimizing charging efficiency. Control strategies for EV systems are analyzed, focusing on effective charging management while ensuring safety and performance. Challenges and future trends in EV fast charging are thoroughly explored, highlighting infrastructure limitations, standardization efforts, battery technology advancements, and energy optimization through smart grid solutions and bidirectional chargers. The paper advocates for global collaboration to establish universal standards and interoperability among charging systems to facilitate widespread EV adoption. Future research areas include faster charging, infrastructure improvements, standardization, and energy optimization. Encouragement is given for advancements in battery technology, wireless charging, battery swapping, and user experience enhancement to further advance the EV fast charging ecosystem. In summary, this paper offers valuable insights into the current state, challenges, and future directions of EV fast charging, providing a comprehensive examination of technological advancements and emerging trends in the field.