Opportunistic Wireless Charging for Urban EVs and Grid Effects

<p class="Abstract">The study evaluates the grid-side implications of on-route,opportunistic wireless charging for electric vehicles (EV), where EVs are chargedduring routine traffic dwell, relative to a conventional depot plug-in regimethat concentrates charging after service. Using a city scale microscopictraffic–power simulation over a six-hour period with a mixed EV fleet, study analysisintegrates vehicle activity, station utilization, and feeder-level indicators. Thefindings show that the distribution of uniform energy across operating hoursleads to a significant reduction in instantaneous loading, increases theutilization of available distribution capacity and reduces load peaks. Conversely,compressing charging into a terminal window alone results in the generation ofa high magnitude wave. The key findings illustrate that temporal regulation ofcharging is a important factor in achieving grid compatibility, andopportunistic wireless top-ups represent a viable mechanism for aligning urbanEV charging with distribution grid operating envelopes. It further motivatesfield trials coupling control policies with observed traffic and feeder limits.<o:p></o:p>