The invention discloses a variable-speed elevator safety protection method which comprises the following steps: calculating and recording the rated power of a motor, calculating the current power of the motor when an elevator is in a variable-speed running state, comparing the current power with the rated power, and stopping the elevator when the current power is greater than the rated power. And controlling the running speed of the elevator to be reduced to a rated speed, wherein the elevator in the variable-speed running state means that the current running speed of the elevator is greater than the rated speed. Compared with the prior art, the performance and the allowance of the motor can be fully utilized.

    本发明公开了一种可变速电梯安全保护方法,包括以下步骤:计算及记录电机的额定功率,当电梯处于可变速运行状态,计算电机的当前功率,将当前功率与额定功率比较,当所述当前功率大于额定功率时,控制电梯的运行速度降低至额定速度,所述电梯处于可变速运行状态是指电梯当前的运行速度大于额定速度。与现有技术相比本发明更能充分利用电机的性能和余量。


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    Title :

    Variable-speed elevator safety protection method


    Additional title:

    可变速电梯安全保护方法


    Contributors:
    CHEN YIWEI (author) / LIU YUBING (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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