The invention provides a variable topological structure wireless charging system of a receiving side variable capacitor, which relates to the field of wireless charging, and is characterized in that an inverter is connected with the input end of an LCL-S type resonance compensation network; the output end of the LCL-S type resonance compensation network is cascaded with the T type resonance compensation network to enter a constant-current charging mode, and the T type resonance compensation network is connected with the rectifier; a capacitor CS2 branch is added in the T-type resonance compensation network, and a capacitor CSt is connected in parallel in a capacitor CS1 branch of the T-type resonance compensation network and is equivalent to one capacitor branch in the F-type resonance compensation network; a capacitor CS2 branch is connected with the switch S1 in series, a capacitor CSt is connected with the switch S2 in series, the switch S1 and the switch S2 are closed at the same time, the T-type resonance compensation network is converted into an F-type resonance compensation network, a constant-voltage charging mode is entered, and the F-type resonance compensation network is connected with the rectifier; the rectifier is connected with the charging load. The control difficulty and cost of the system can be reduced.
本发明提供了一种接收侧可变电容的变拓扑结构无线充电系统,涉及无线充电领域,包括:逆变器与所述LCL‑S型谐振补偿网络的输入端相连接;LCL‑S型谐振补偿网络的输出端与T型谐振补偿网络级联,进入恒流充电模式,T型谐振补偿网络连接整流器;在T型谐振补偿网络中增加电容CS2支路,并在T型谐振补偿网络的电容CS1支路中并联电容CSt等效为F型谐振补偿网络中的一路电容支路;电容CS2支路与开关S1串联,电容CSt与开关S2串联,同时闭合开关S1以及开关S2,将T型谐振补偿网络转变为F型谐振补偿网络,进入恒压充电模式,F型谐振补偿网络连接所述整流器;整流器与所述充电负载相连接。本发明能够降低系统的控制难度和成本。
Variable topological structure wireless charging system of receiving side variable capacitor
一种接收侧可变电容的变拓扑结构无线充电系统
2023-12-29
Patent
Electronic Resource
Chinese
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