Improved Control Strategy of Grid Interface for EV High-Power Dynamic Wireless Charging

This paper proposes a control strategy for the grid interface converter in high-power dynamic wireless charging system (DWCS) to address two issues on distribution network integration. Due to the unique pulsating load profile of DWCS, load transient response capability is critical for the grid inter...

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Bibliographic Details
Main Authors: Zeng, Rong, Galigekere, Veda P., Onar, Omer C., Ozpineci, Burak
Format: Conference Proceeding
Language:English
Subjects:
Current control
direct power control
distribution network
Distribution networks
dynamic wireless charging
hardware in the loop
Inductive charging
Power control
Simulation
Transient response
Voltage control
Online Access:Request full text
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Summary:This paper proposes a control strategy for the grid interface converter in high-power dynamic wireless charging system (DWCS) to address two issues on distribution network integration. Due to the unique pulsating load profile of DWCS, load transient response capability is critical for the grid interface to maintain the dc-bus voltage stable. Besides, the inherent unbalanced situation of distribution network would lead to 2 nd -order oscillations on the dc-bus voltage, which would further affect the stable operation of the entire system. In this paper, the DWCS model is developed, and the relationship between the dc-bus voltage and the input/output power is analyzed. Based on the developed model, a control strategy based on direct power control is presented. Both simulation results and hardware-in-the-loop (HIL) results demonstrate that the proposed control strategy not only improves load transient response capability, but also eliminates the 2 nd -order oscillations on the dc-bus voltage under imbalanced distribution network conditions.
ISSN:2470-6647
DOI:10.1109/APEC42165.2021.9487243