Multi-objective hybrid optimized coil design for enhanced efficiency, improved voltage gain, and compactness for...

Area of Science:

• Electrical Engineering
• Sustainable Energy Systems
• Electromagnetics

Background:

• Growing global population and vehicle usage necessitate sustainable transportation solutions like electric vehicles (EVs).
• Efficient wireless charging systems are crucial for the widespread adoption of light EVs (LEVs).
• Inductive Power Transfer (IPT) is a key technology for EV wireless charging.

Purpose of the Study:

• To test the performance of an optimized coil design for a 48V light EV (LEV) IPT prototype.
• To optimize coil design for compactness and high power transfer efficiency.
• To validate the performance of the optimized IPT system under variable frequency operation.

Main Methods:

• Utilized a hybrid multi-objective optimization algorithm combining Taylor-series tuning and Dove Swarm (DSO) optimization.
• Designed and simulated optimized coils for IPT applications.
• Conducted hardware tests to validate simulation results for the IPT prototype.

Main Results:

• Achieved a power transfer efficiency (PTE) of 94% with a voltage gain of 0.93 and current gain of 0.9.
• Observed a minimal voltage drop of approximately 0.7V (1.5%) between primary and secondary coils.
• Demonstrated strong coupling and minimal voltage loss, validated for variable frequency operation.

Conclusions:

• The optimized compact coil design for IPT systems offers high power transfer efficiency and reduced size.
• The developed IPT system is robust and well-suited for light EV wireless charging applications.
• This research contributes to advancing sustainable transportation through efficient wireless charging solutions.