Wireless power transfer for running EV powering using multi-parallel segmented rails

The conventional static wireless powering technology for electric vehicles (EV) has the disadvantages of non-running powering and frequent charging times. To solve the above problems, a novel wireless power transfer (WPT) technology for dynamic roadway EV powering using multiple parallel segmented rails is proposed in this paper. Firstly, currently several dynamic powering methods are compared. Then, circuit model and transfer function is established to analyze the topology of this proposed LCL resonator, respectively. Finally, transient response time of the topology is calculated by using the dominant pole method. Both simulation and experimental results demonstrate that the proposed strategy can achieve oven power flow and significant efficiency improvement compared with the traditional structure.