A wireless electric energy transmission system of multiple inverters and multiple rectifiers based on a resonant inductor integrated transformer is characterized in that each inverter and each rectifier are connected with an RIIT (reactive inactive impedance transformer), the turn ratio of the RIITs is set according to required voltage gains, secondary side windings of the RIITs connected behind the inverters are connected in series, and secondary side windings of the RIITs connected behind the inverters are connected in series. The secondary sides of the RIITs connected behind the rectifiers are connected in series, and the total leakage inductance of the RIITs serves as the resonant inductance of the LCC resonant circuit, so that the power density and the efficiency of the system are improved. By setting the working states of a specific rectifier and an inverter and only sampling the current of the rectifier, the mutual inductance between a transmitting coil and a receiving coil can be calculated, so that the maximum efficiency point of the system is obtained, and simplified maximum efficiency tracking is realized based on the proposed hybrid modulation method.

    一种基于谐振电感集成变压器的直流侧并联、交流测串联的多逆变器和多整流器的无线电能传输系统,每个逆变器和每个整流器都连接一个RIIT,RIIT的匝数比根据需要的电压增益进行设置,每个逆变器后接的RIIT的二次侧绕组串联,每个整流器后接的RIIT的二次侧串联,RIIT的总漏感作为LCC谐振电路的谐振电感,以提高系统的功率密度和系统效率。通过设置特定的整流器和逆变器的工作状态,仅采样整流器电流,就能计算出发射线圈和接收线圈之间的互感,进而得到系统的最大效率点,并基于所提混合调制方法,实现简化的最大效率跟踪。


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    Titel :

    Multi-inverter and multi-rectifier wireless power transmission system and control method thereof


    Weitere Titelangaben:

    多逆变器和多整流器的无线电能传输系统及其控制方法


    Beteiligte:
    LIU XIN (Autor:in) / GAO FEI (Autor:in) / LIU YUXIN (Autor:in) / YANG XIJUN (Autor:in) / TANG HOUJUN (Autor:in) / LIU DONG (Autor:in)

    Erscheinungsdatum :

    2022-11-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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