Analysis and implementation of variable frequency controlled dynamic wireless charging system with half-bridge...

Area of Science:

• Electrical Engineering
• Power Electronics
• Wireless Power Transfer

Background:

• Resonant Inductive Power Transmission (RIPT) is a key technology for Wireless Power Transfer (WPT).
• Dynamic Wireless Charging Systems (DWCS) offer convenience for electric vehicles (EVs) but face high initial costs.
• Optimizing DWCS is crucial for widespread EV adoption.

Purpose of the Study:

• To introduce an innovative, cost-effective half-bridge multi-legged inverter for DWCS.
• To analyze the impact of Variable Frequency Control Technique (VFCT) on DWCS performance.
• To investigate the influence of coil geometry and spacing on power transfer efficiency.

Main Methods:

• Implementation of a half-bridge multi-legged inverter with independent leg control for transmitter coils.
• Application of Variable Frequency Control Technique (VFCT) with S-S and LCC-S compensation topologies.
• Analysis of square and rectangular transmitter coils and varying coil gaps.

Main Results:

• The proposed half-bridge multi-legged inverter configuration effectively reduces system costs.
• VFCT demonstrates a significant impact on DWCS performance.
• Coil geometry (square vs. rectangular) and coil gap significantly affect the received power.

Conclusions:

• The developed half-bridge multi-legged DWCS offers a promising solution for efficient and affordable EV charging.
• Coil design and gap optimization are critical for maximizing power transfer in RIPT systems.
• This research provides valuable insights for advancing RIPT technology for electric vehicles.