US 12,451,735 B1
Systems and methods for stabilizing power and voltage in dynamic wireless charging
Arif I. Sarwat, Miami, FL (US); and Milad Behnamfar, Miami, FL (US)
Assigned to The Florida International University Board of Trustees, Miami, FL (US)
Filed by Arif I. Sarwat, Miami, FL (US); and Milad Behnamfar, Miami, FL (US)
Filed on Apr. 24, 2025, as Appl. No. 19/188,472.
Int. Cl. H02J 7/00 (2006.01); B60L 53/122 (2019.01); B60L 53/60 (2019.01); H02J 50/12 (2016.01); H02J 50/70 (2016.01); H02J 50/40 (2016.01); H02M 3/156 (2006.01)
CPC H02J 50/70 (2016.02) [B60L 53/122 (2019.02); B60L 53/60 (2019.02); H02J 50/12 (2016.02); B60L 2210/12 (2013.01); H02J 50/40 (2016.02); H02M 3/156 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for stabilizing voltage in dynamic wireless charging (DWC), the system comprising:
a receiver coil configured to perform DWC with at least one transmitter coil;
a direct current (DC)-DC converter at a receiver side and in operable communication with the receiver coil; and
a controller in operable communication with the DC-DC converter,
the controller being configured to perform the following steps during DWC:
i) receive, from the receiver side during DWC, an output voltage of the DC-DC converter;
ii) perform a backstepping control to compute a reference inductor current of the DC-DC converter based on an error of the output voltage of the DC-DC converter; and
iii) perform a passivity-based control to drive an inductor current of the DC-DC converter to the reference inductor current computed by the backstepping control, thereby stabilizing an output voltage of a DWC apparatus performing the DWC,
the performing of the passivity-based control comprising employing a dual-phase approach to reduce energy oscillations in inductors and capacitors of the receiver coil.