Abstract
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 2nd-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 2nd-order oscillations on the dc-bus voltage under imbalanced distribution network conditions.
| Original language | English |
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| Title of host publication | 2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2574-2579 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728189499 |
| DOIs | |
| State | Published - Jun 14 2021 |
| Event | 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 - Virtual, Online, United States Duration: Jun 14 2021 → Jun 17 2021 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
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Conference
| Conference | 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 |
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| Country/Territory | United States |
| City | Virtual, Online |
| Period | 06/14/21 → 06/17/21 |
Funding
ACKNOWLEDGMENT This research used resources available at the Power Electronics and Electric Machinery Research Facility located at the National Transportation Research Center, a DOE EERE User Facility operated by the Oak Ridge National Laboratory (ORNL). The authors would like to thank David Smith (ORNL) and Lee Slezak (U.S. Department of Energy) for their support of this work and their guidance. This work is completed under the U.S. Department of Energy Vehicle Technologies Office funded High Power and Dynamic Charging of EVs project.
Keywords
- Direct power control
- Distribution network
- Dynamic wireless charging
- Hardware in the loop