The invention discloses a power converter of a switched reluctance motor for an elevator, which comprises a direct-current power supply, a direct-current bus capacitor, a current sensor and three H-bridge driving circuits connected in parallel in the same direction, and the three H-bridge driving circuits are connected with three-phase windings of the switched reluctance motor in a one-to-one correspondence manner. Each H-bridge driving circuit and the direct current bus capacitor are connected together and then are connected to an external direct current power supply; the invention discloses a fault-tolerant control method for a power converter of a switched reluctance motor for an elevator. The fault-tolerant control method comprises the following steps: 1) detecting a fault phase and a specific fault reason; (2) the corresponding fault-tolerant control method is switched according to the fault reasons, so that the elevator outputs in a normal torque mode, and torque pulsation is restrained. The elevator can maintain stable operation under the condition that the power converter breaks down, and the operation reliability of the switched reluctance in various environments is improved.

    本发明公开了一种电梯用开关磁阻电机的功率变换器,包括直流电源,直流母线电容,电流传感器和同向并联连接的三个H桥驱动电路,三个所述H桥驱动电路与开关磁阻电机的三相绕组一一对应连接,且每个所述H桥驱动电路和所述直流母线电容共连后连接至外部直流电源;一种电梯用开关磁阻电机的功率变换器的容错控制方法,步骤1)检测出故障相及具体故障原因;步骤2)根据故障原因切换对应的容错控制方法,使电梯以正常转矩输出,抑制转矩脉动。本发明可使电梯在功率变换器发生故障的情况下维持平稳运行,提高了开关磁阻在各种环境下运行的可靠性。


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    Title :

    Power converter of switched reluctance motor for elevator and fault-tolerant control method of power converter


    Additional title:

    一种电梯用开关磁阻电机的功率变换器及其容错控制方法


    Contributors:
    MO YUEPING (author) / SHENG YEFAN (author) / HE ZHITAO (author)

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B66B Aufzüge , ELEVATORS / 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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