The invention provides a wireless electric energy transmission system and a control method thereof, and solves the problem that an existing OHT wireless power supply system is difficult to maintain stable and efficient output when facing mutual inductance and load change, and the control method comprises the following steps: initializing the system, starting a mutual inductance prediction module and a load prediction module, and simultaneously performing two interruption loops; s2, when mutual inductance changes, a mutual inductance prediction module detects the size of a mutual inductance value, a direction shifting angle is changed through phase shifting control so as to adjust inversion voltage, output voltage is kept stable, when the mutual inductance value is smaller than a critical value, the system closes a launching track, and when an adjacent system detects the mutual inductance value, soft starting is started, and the system is waited to be switched into the track; the mutual inductance real-time prediction value is provided for the load prediction module, the load change is predicted in real time through cooperation with current and voltage sampling signals, and the stability of the output voltage is ensured through moving direction control.

    本发明提出了一种无线电能传输系统及其控制方法,解决了现有的OHT无线供电系统在面对互感和负载变化时,难以保持稳定和高效的输出的问题,其控制方法包括:系统初始化,开启互感预测模块和负载预测模块并且两个中断回路同时进行;S2、互感发生变化时,互感预测模块检测互感值大小,通过移相控制来改变移向角进而调整逆变电压,使输出电压保持稳定,当互感值小于临界值后,系统关闭发射轨道,当相邻系统检测到互感值时,开始进行软起动,等待系统切入该轨道;互感实时预测值将提供给负载预测模块,通过与电流电压采样信号配合实时预测负载变化,通过移向控制来保证输出电压稳定性。


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    Title :

    Wireless power transmission system and control method thereof


    Additional title:

    一种无线电能传输系统及其控制方法


    Contributors:
    BO ZHANGCHAO (author) / SHI CHAOQUN (author) / PARK SEO-YONG (author) / YANG SHENGQUAN (author)

    Publication date :

    2024-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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