The invention provides a wireless charging control method and a wireless charging converter, and the method comprises the steps: determining a constant ratio of a current stage according to a reference constant current value and the input voltage of a transmitting end at the current charging stage of an energy storage module, and then determining a plurality of parameter pairs according to the constant ratio, each parameter pair comprises a conduction angle and an inductance value, determining the transmission efficiency corresponding to each parameter pair, determining a target parameter pair, adjusting the variable inductance according to the target inductance value in the target parameter pair, and determining an expected conduction angle according to the target conduction and the reference constant current value at the current stage, thereby controlling the on-off of the rectifier unit. By means of the method, under the condition that multi-stage constant current charging is guaranteed, the transmission efficiency is the highest, the equivalent load of the IPT converter is controllable, and therefore the situation that the conversion efficiency is obviously reduced under the condition that the equivalent load deviates from the ideal load is avoided.
本申请提供了一种无线充电控制方法及无线充电转换器,其中,该方法包括在储能模块充电的当前阶段根据参考恒流值及发射端的输入电压确定当前阶段的恒定比值,再根据恒定比值确定多个参数对,各参数对中包括一个导通角和一个电感值,然后确定各参数对对应的传输效率,确定目标参数对,根据目标参数对中的目标电感值调整可变电感,再根据目标导通及当前阶段参考恒流值确定预期导通角,从而控制整流器单元的通断。通过上述方法,在保证多级恒流充电的情况下,传输效率最高,其IPT转换器的等效负载可控,从而避免等效负载在偏离理想负载的情况下转换效率明显下降的情况。
Wireless charging control method and wireless charging converter
无线充电控制方法及无线充电转换器
14.11.2023
Patent
Elektronische Ressource
Chinesisch
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