Abstract
Dynamic wireless charging of electric vehicles (EV) is an emerging technology with the potential to address range anxiety and reduce the size of batteries or provide charge-sustaining operation. Charging demand for dynamic wireless charging systems (DWCS) varies greatly in response to location-specific traffic behaviors including the number and speed of vehicles. This paper highlights the potential reduction of load variation with speed compensation and simulates opportunities to maximize the number of cars charged concurrently through 'power sharing' or altering power output to slower cars while maintaining a maximum delivered energy. An improved sub-minute model for synthetic traffic is proposed to effectively model DWCS load on high speed roadways and a power electronics model is created based on an existing prototype developed by ORNL to investigate the potential for power sharing. Reductions in the average speed of traffic can greatly increase instantaneous DWCS load by as much as 26%, complicating capacity sizing. Parametric studies with a LCC-S power electronics model shows feasible power reduction of more than 20%, while maintaining a maximum achievable efficiency greater than 90%. Speed compensation on a roadway with large speed variation can reduce average power expected by 21% and increase the maximum number of cars charged simultaneously by 30%. The application of power sharing may significantly reduce load variability due to speed, allow for increased car hosting capability, and guarantee a maximum energy delivered.
Original language | English |
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Title of host publication | 2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023 |
ISBN (Electronic) | 9798350397420 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023 - Detroit, United States Duration: Jun 21 2023 → Jun 23 2023 |
Publication series
Name | 2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023 |
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Conference
Conference | 2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023 |
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Country/Territory | United States |
City | Detroit |
Period | 6/21/23 → 6/23/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- Electric vehicle (EV)
- power control
- sensitivity analysis
- wireless charging
- wireless power transfer
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Automotive Engineering
- Transportation
- Control and Optimization