The invention discloses a variable-speed elevator abnormity grading protection system which is characterized in that in a variable-speed mode, when a speed control part controls a lift car traction motor to enable a lift car to run at a constant speed higher than a rated speed, an abnormity judgment part judges an abnormal state according to a signal from a power detection part and sends abnormal state information to the speed control part. According to the output power of the elevator car traction motor detected by the power detection part, the abnormity judgment part can continuously judge the abnormal degree of the elevator in real time, elevator faults are detected in time, and the moving speed of the elevator car is automatically and correspondingly adjusted in time according to the abnormal degree; while the variable speed of the elevator is realized, faults caused by abnormal heating of the motor and the inverter can be avoided, and the safety of passengers cannot be influenced even if the output power of the motor is abnormal during variable-speed operation of the elevator.

    本发明公开了一种可变速电梯异常分级保护系统,在可变速模式下,速度控制部控制轿厢曳引电机使轿厢高于额定速度匀速运行时,异常判断部根据来自功率检测部的信号来判断异常状态,向速度控制部发送异常状态信息。根据功率检测部检测出的轿厢曳引电机输出功率,异常判断部可实时连续判断电梯的异常程度,及时检出电梯故障,根据异常程度自动及时对电梯轿厢移动速度进行相应调整,在实现电梯可变速的同时能避免电机和逆变器因异常发热而引起故障,确保电梯可变速运行时即使电机输出功率异常也不会影响乘客的安全性。


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    Titel :

    Variable-speed elevator abnormity grading protection system


    Weitere Titelangaben:

    可变速电梯异常分级保护系统


    Beteiligte:
    CHEN YIWEI (Autor:in) / LIU YUBING (Autor:in)

    Erscheinungsdatum :

    2023-08-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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