Research Progress and Prospects of Public Transportation Charging Station Layout Methods

Abstract

Electric buses have been vigorously promoted and implemented in major countries worldwide and have generated a huge demand for charging stations. Optimizing the daily charging experience of electric buses, adapting the daily operation scheduling, improving the utilization rate of charging stations, reducing the load on the power grid, and improving the operation efficiency of electric bus line networks require the reasonable layout of the charging stations. In this study, public transportation charging station layout and siting is the research object. We summarize the progress of analysis methods from the charging station and vehicle sides; introduce related research on the planning and layout of charging stations based on optimization models, including cost analysis and siting and layout for electric bus systems; summarize the data-driven station planning and siting research; and provide an overview of the current charging demand estimation, accuracy, and charging efficiency. Finally, we address the problems of the charging demand estimation accuracy, the mismatch between the charging station layouts for electric buses, and the charging demand on a long time scale. We suggest that research be conducted on data fusion for the temporal and spatial refinement of charging demand prediction in the context of the electrification of public transportation systems and the big data of telematics.

Analysis of Scalable Resonant DC–DC Converter Using GaN Switches for xEV Charging Stations

“…The range of input voltages is set between 300 V in and 500 V in , while the rated load voltage is maintained at 48 V 0 . The converter's effectiveness is evaluated under different load conditions [39,40]. The major side of the converter includes 8-GaN switches, specifically 4 in converter 1 and 4 in converter 2.…”