Design Considerations of DC/DC Regulator for High-Power Dynamic Wireless Charging Systems

Conference · Thu Jun 01 00:00:00 EDT 2023

DOI:https://doi.org/10.1109/ITEC55900.2023.10186894· OSTI ID:1997599

Xue, Lincoln  ^[1]; Su, Gui-Jia  ^[1]; Galigekere, Veda Prakash  ^[1]; Onar, Omer  ^[1]; Mohammad, Mostak  ^[1]

---

1. ORNL

Due to fast fluctuating input voltage, dynamic wireless charging requires a post-regulator stage for battery charging control and management. This regulator stage has a high requirement on efficiency, size as well as control performance to ensure tight regulation and fast trainset. This paper addresses the control challenges by modeling the system and designing the compensator with input voltage feedforward control. In addition, high resolution PWM is implemented to improve transient performance and current balancing among the phases. Experimental results prove the effectiveness of the proposed schemes and validates 180 kW closed-loop 4-phase operation at 99% efficiency.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1997599
• Resource Relation: Conference: 2023 IEEE Transportation Electrification Conference and Expo (ITEC) - Detroit, Michigan, United States of America - 6/21/2023 4:00:00 AM-6/23/2023 4:00:00 AM
• Country of Publication: United States
• Language: English