A novel enhancing electric vehicle charging: an updated analysis of wireless power transfer compensation topologies

Department Electric vehicles (EVs) have gained popularity over traditional gasoline vehicles due to their lower environmental impact, reduced maintenance costs, and government incentives. However, challenges such as limited charging infrastructure, battery reliability issues, high initial costs, and restricted travel range hinder widespread adoption. Wireless Power Transfer (WPT) presents a promising solution by offering a seamless and efficient charging experience without physical connections. This review explores the advancements in WPT technology, highlighting its benefits and challenges, such as power transfer efficiency affected by coil misalignment and air gaps. WPT methods, including near-field and far-field techniques, are discussed with a focus on inductive, capacitive, and resonant inductive approaches. The paper delves into the role of compensation topologies in enhancing power transfer efficiency and provides a comprehensive overview of current research trends. The review also includes a mathematical analysis of compensation networks, focusing on different combinations of series (S) and parallel (P) topologies, such as SS, SP, PP, and PS configurations, along with an examination of leading manufacturers in the WPT sector for EVs.