| Abstract |
Dynamic inductive power transfer technology (DIPT) has recently seen significant development. It isproposed as an alternative solution for increasing the range of electrical vehicles (EV) while decreasingthe battery size. Transmitting coils located under the road transfer the power to a receiving coilintegrated within the moving EV by inductive coupling. In a series-series DIPT system with multipletransmitting coils, a high induced voltage can occur on the adjacent inactive transmitting coils, thuscreating numerous risks. This high induced voltage risks reinjecting power to the grid and thussignificantly decreases the system's performance and efficiency. In this article, we present and compareseveral solutions for the high-induced voltage problem. A four-quadrant switch is designed, modeled,and realized based on two technologies: Saturable reactor and IGBT transistors. Then the 4Q-switchsolution is compared with the short-circuiting method. Experimental validation is performed using aseries-series DIPT platform using a 300 W resistive load with variable frequency control. |
