研究目的
To obtain higher misalignment tolerance of system efficiency in wireless power transfer systems by designing a three-loop LCT structure with variable compensation capacitance and moveable intermediate couplers.
研究成果
The three-coil LCT with moveable intermediate coupler and variable compensating capacitor significantly improves the misalignment tolerance of the WPT system efficiency. The experimental validation of a 3-kW prototype confirmed the effectiveness of the proposed LCT structure and optimal control strategy.
研究不足
The study focuses on improving misalignment tolerance of efficiency in wireless power transfer systems but does not address potential limitations in scalability or cost-effectiveness of the proposed LCT design.
1：Experimental Design and Method Selection:
A three-coil LCT structure was designed with intermediate couplers slightly larger than primary and secondary couplers, featuring a 30mm air gap and variable compensation capacitance. The intermediate couplers can move with the secondary couplers upon reaching certain offsets.
2：Sample Selection and Data Sources:
A 3-kW prototype was developed for experimental verification, with parameters and dimensions specified in the paper.
3：List of Experimental Equipment and Materials:
High-frequency voltage supply, three-coil LCT, compensating capacitor banks made by film capacitors, and a non-inductive load resistor were used.
4：Experimental Procedures and Operational Workflow:
The efficiency variations of two-coil and three-coil LCTs with lateral and vertical offsets were measured using a high precise power analyzer.
5：Data Analysis Methods:
The effectiveness of the proposed LCT and control strategy was verified through experimental validation, comparing efficiencies and declines with offsets.
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