报 告 人：Ioannis Karakitsios 助理研究员
工作单位：雅典国家技术大学（National Technical University of Athens）
Ioannis Karakitsios，雅典国家技术大学助理研究员，博士。于2011年获得了雅典国家技术大学(NTUA)的电气和计算机工程学士学位。现为NTUA电力部门的博士生，希腊技术协会成员和IEEE成员。2011年起在希腊公共电力公司任NTUA SmartRue研究小组的助理研究员，参与多项欧洲项目。其研究方向为：电动汽车传导充电 (能源需求管理、充电站等)，电动汽车的感应充电系统(磁耦合器、感应磁场、控制系统设计等)。
Increased needs for the decarbonisation of transport have sparked increased interest in Electric Vehicles (EVs) in the last years. Inductive charging, which allows the wireless transfer of energy between the EV and the charging station, appears to be a very promising charging method considerably simplifying the charging process and eliminating any risks associated with the use of cables. Apart from the ability to transfer energy in a contactless way while the EV is parked over the station (i.e. static inductive charging), energy can also be wirelessly transferred while the EV moves on the road (i.e. dynamic inductive charging).
The operational principle of an inductive power transfer system is similar to a transformer; energy is transferred through an air-gap from a primary to a secondary coil, which are not physically connected. The present work initially studies the basic principles of operation of static inductive charging, considering the various magnetic couplers, compensation methods and control systems that have been proposed. The necessary modifications in the operation of the system are also examined in the case of dynamic inductive charging, in order to consider the movement of the EV over the station. In this respect, the bifurcation phenomenon (indicating the maximization of the system’s efficiency in frequencies different than the one maximizing the power transferred to the EV battery) is studied not only according to the operational frequency but also according to the movement of the EV. Moreover, the variations in the self-inductances of the coils in dynamic inductive charging are taken into account, in order to properly select the compensation capacitors that will ensure high amounts of power transferred to the EV battery while also achieving a high efficiency.