The invention discloses an unmanned aerial vehicle hovering wireless charging system mutual inductance estimation method. A charging system adopted by the method comprises a transmitting system used for transmitting electromagnetic energy, a receiving system used for receiving the electromagnetic energy and a charging control system. The transmitting system comprises a direct-current voltage source, an inverter, a transmitting side compensation capacitor and a transmitting coil; the receiving system comprises a receiving coil, a receiving side compensation capacitor, a rectifier, a filter capacitor and a charging load; the charging control system comprises a sampling module, an equivalent circuit vector model and a mutual inductance estimation module. The sampling module is used for sampling voltage and current of the output side of the inverter; the equivalent circuit vector model represents an equivalent circuit dynamic equation of the charging system in a plural form; and the mutual inductance estimation module is used for estimating the mutual inductance by using the voltage and current collected by the sampling module and the equivalent circuit vector model. According to the invention, the input voltage (phase shift angle) can be adjusted in time by tracking the mutual inductance, so that the current at the receiving side is approximately constant.

    本发明公开了一种无人机悬停无线充电系统互感估计方法,该方法采用的充电系统包括:用于发射电磁能的发射系统、用于接收电磁能的接收系统及充电控制系统;发射系统包括直流电压源、逆变器、发射侧补偿电容和发射线圈;接收系统包括接收线圈、接收侧补偿电容、整流器、滤波电容和充电负载;充电控制系统包括采样模块、等效电路矢量模型及互感量估算模块;采样模块用于采样逆变器输出侧的电压及电流;等效电路矢量模型通过复数形式表征充电系统的等效电路动态方程;互感量估算模块用于利用采样模块采集的电压及电流及等效电路矢量模型,估算互感量。本发明可通过跟踪互感量从而及时调节输入电压(移相角),使接收侧电流的近似恒定。


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    Titel :

    Mutual inductance estimation method for unmanned aerial vehicle hovering wireless charging system


    Weitere Titelangaben:

    一种无人机悬停无线充电系统互感估计方法


    Beteiligte:
    ZHANG ZHEN (Autor:in) / CHEN KAIBO (Autor:in) / CHANG SIYUAN (Autor:in) / DENG BIN (Autor:in) / WANG KAIFENG (Autor:in)

    Erscheinungsdatum :

    02.05.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B64U



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