The invention provides a flexible adjustable capacitor tuning method for wireless charging of an electric vehicle, and the method comprises the steps: detecting the voltage and current of an output side of a system through an oscilloscope, feeding back a measurement result to a controller of an MOSFET tube, and recovering a resonance state through the adjustment of the duty ratio of the MOSFET tube. The flexible adjustable capacitor tuning method for wireless charging of the electric vehicle has the beneficial effects that the flexible adjustable capacitor tuning method for wireless charging of the electric vehicle is used for solving the detuning problem in a magnetic coupling resonant type wireless charging system of the electric vehicle; the flexible adjustable capacitor module is added in the system, when the system is detuned, the flexible adjustable capacitor achieves impedance matching by adjusting the duty ratio of the MOSFET tube, the system returns to the resonance state again, the interoperability of the system can be improved, and efficient and safe guarantee is provided for wireless charging.
本发明提供了一种用于电动汽车无线充电的柔性可调节电容调谐方法,利用示波器对系统输出侧电压及电流进行检测,并将测量结果反馈到MOSFET管的控制器,通过对MOSFET管占空比的调节恢复谐振状态。本发明有益效果:一种用于电动汽车无线充电的柔性可调节电容调谐方法,针对于磁耦合谐振式电动汽车无线充电系统中的失谐问题使用,在系统中添加柔性可调节电容模块在系统失谐时柔性可调节电容通过调节MOSFET管的占空比来实现阻抗匹配,重新回到谐振状态,能够提高系统互操作性,为无线充电提供高效且安全的保障。
Flexible adjustable capacitor tuning method for wireless charging of electric vehicle
一种用于电动汽车无线充电的柔性可调节电容调谐方法
2023-04-04
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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