Conclusions
• Only need a simple design to efficiently transfer large power
levels over moderate distances.
• Demonstrated >4 kW at 10” separation with 92% transfer
efficiency.
• Can be constructed with commercial-off-the-shelf components
(20 kHz IGBT’s).
• Challenges being addressed by the ORNL team:
• Minimization of coupling coil ac resistance effects,
• load tracking and compliance with interoperability,
• power inverter kVA/kW limits and
• appropriate vehicle to grid side communications.