Advances and Challenges in Static and Dynamic Wireless Charging

Dear Colleagues,

With an ever-growing passion for mobility, the number of batteries used in mobile electronic and electrical devices has increased significantly over the last decades. They all need to be recharged over time. Conventional charging methods based on direct electrical contact with the charging device have many disadvantages, such as sparking of electrical contacts (which may lead to problems in chemical plants), low reliability (because contacts can wear down, especially in humid environments), the need for very accurate positioning of a mobile object, and so on. Therefore, wireless charging based on wireless power transfer (WPT) technology has been proposed. Wireless charging does not have the disadvantages mentioned above. However, there are still many issues (e.g. not very high efficiency of dynamic WPT systems, low cost-effectiveness of dynamic WPT systems, difficulties in limiting leakage electromagnetic fields of static and dynamic WPT systems, etc.) that should be addressed.

This Special Issue focuses on improving the performance, reliability, and cost-effectiveness of wireless chargers with inductive and capacitive WPT technology. Research articles on other types of WPT technology (e.g. microwave WPT, laser-based WPT, etc.) for battery charging, as well as review articles on static and dynamic WPT, are also welcome. Potential research topics include, but are not limited to, the following:

• Novel or improved control techniques of static or dynamic wireless charging systems for better efficiency, reliability, and cost-effectiveness;
• Novel or improved topologies of wireless charging systems;
• Design and optimization of static or dynamic wireless charging systems;
• Modeling and optimization of inductive WPT systems and WPT coils considering EMC and field leakage;
• Modeling of electromagnetic fields generated by WPT systems;
• Novel or improved EMI suppression techniques applied to WPT systems;
• Wireless battery charging in wireless sensor networks.

Dr. Deniss Stepins
Dr. Janis Zakis
Guest Editors

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