研究目的
To analyze the influences of coupler parameters, including shielding, on the performance of a Wireless Power Transfer system applied in trams, and to develop a mathematical model to understand and mitigate the effects of metal carriages and rails on the system.
研究成果
The study successfully analyzed the effects of metal and magnetic core shielding on coupler parameters in WPT systems for trams, with theoretical models verified by experiments showing a maximum error of 3.9%. The findings indicate that shielding can mitigate eddy current losses and enhance coupling, guiding future design improvements for better system efficiency and performance.
研究不足
The simulation software cannot carry out multi-parameter model optimization and characteristic analysis, and the model assumes idealized conditions such as linear and isotropic media, infinite shielding layers, and quasi-static fields, which may not fully represent real-world complexities.
1：Experimental Design and Method Selection:
The study involves building a mathematical model of the coupler using magnetic circuit methods and electromagnetic field theory, followed by simulation in Ansoft software and experimental validation.
2：Sample Selection and Data Sources:
Coils are wound based on specified sizes (e.g., from TABLE II), and parameters are measured using an LRC tester.
3：List of Experimental Equipment and Materials:
Coils, magnetic cores, metal plates (e.g., aluminum), and an LRC tester for measurement.
4：Experimental Procedures and Operational Workflow:
Coils are constructed, parameters (inductance, resistance, mutual inductance) are measured under different conditions (with/without shielding, varying distances), and results are compared with theoretical predictions.
5：Data Analysis Methods:
Data is analyzed through comparison of measured and theoretical values, with error calculation and trend analysis.
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