Roadways with dynamic wireless charging systems (DWCS) enable charge-sustaining in-motion EV charging, which can reduce charging idle time while increasing range capabilities. Spatially distributed transmitter coils are controlled in response to traffic load that varies significantly minute to minute with high power levels, very short charging time, and low system utilization like wind turbine power. Traffic load estimation and localized analysis may guide effective sizing and topology adoption for feasible and scalable DWCS deployment. DWCS traffic load approximation is reviewed with measured Automated Traffic Recorder (ATR) data and statistical distributions being used to create a synthetic load analyzed using proposed metrics quantifying system utilization over time. Lumped coil section segmentation is compared between second-based distance and spatial density analysis methods, offering 17-27% greater system utilization. A peak load shifting method is proposed for traffic redirection across two tracks with optional BESS integration increasing system utilization by 50-60% depending on time-based and power reserve-based sizing and control.

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Conference Proceeding

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Lewis, D. D., Gong, H., Erhardt, G., Zeng, R., Onar, O., Galigekere, V. P., Ozpineci, B., and Ionel, D. M., "Sizing Considerations for EV Dynamic Wireless Charging Systems with Integrated Energy Storage," Proceedings, IEEE Transportation Electrification Conference and Expo (ITEC), Anaheim, CA, doi: 10.1109/ITEC53557.2022.9813893, pp. 611-616 (Jun 2022)

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