Abstract
The traditional contact power supply method cannot meet the electric vehicle (EV) charging during driving, so it is very necessary to research the Dynamic Bidirectional-Energy-Interaction-Based Wireless Power Transfer (DBEIB-WPT) technology. The WPT technology solves problems such as contact with the power supply sources and loads. Due to its movable nature, the connects and disconnects of the load will cause a change in frequency. However, because of its characteristic that the electric energy can be bidirectional energy transmission with the grid, the electric energy can be feedback to the grid to achieve the purpose of peak clipping and valley filling. This paper reviews the current common compensation topology, coil structure, a variety of dynamic WPT and control methods. Review the domestic and foreign-related research, and some hot issues of dynamic WPT technology: unidirectional/bidirectional feedback topology, modeling idea, resonance compensation, Vehicle-to-grid(V2G), etc. The analysis of these technologies and methods. Finally, discusses the key technologies and deficiencies of the DBEIB-WPT technology.
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