The invention relates to the technical field of elevator deceleration protection, and discloses an elevator forced deceleration protection method which comprises the following steps: acquiring and adjusting the number and mounting positions of forced deceleration switches; calculating a speed-residual distance protection curve when the elevator is decelerated at the rated elevator speed, and performing elevator deceleration protection according to the detection result of the forced deceleration switch and the speed-residual distance protection curve; calculating a speed-time protection curve when the elevator is decelerated at the rated elevator speed, and performing elevator deceleration protection according to the detection result of the forced deceleration switch and the speed-time protection curve; and fault detection is carried out according to the residual distance, the installation position of the forced deceleration switch and the effective condition. After the forced deceleration switch signal is valid, forced deceleration protection is performed on the elevator according to the speed-residual distance protection curve and the speed-time protection curve, and the failure condition of the forced deceleration switch is detected according to the abnormal fault and the slip fault of the forced deceleration switch so as to deal with the influence caused by the failure of the forced deceleration switch.

    本发明涉及电梯减速保护技术领域,公开了一种电梯强迫减速保护方法,包括:获取并调整强迫减速开关的数量和安装位置;计算电梯额定梯速减速时的速度‑剩余距离保护曲线,并根据强迫减速开关检测结果和速度‑剩余距离保护曲线进行电梯减速保护;计算电梯额定梯速减速时的速度‑时间保护曲线,并根据强迫减速开关检测结果和速度‑时间保护曲线进行电梯减速保护;根据剩余距离和强迫减速开关的安装位置、有效情况进行故障检测。本发明在强迫减速开关信号有效后,根据速度‑剩余距离保护曲线及速度‑时间保护曲线对电梯进行强迫减速保护,并通过强迫减速开关异常故障和打滑故障对强迫减速开关失效情况进行检测,以应对强迫减速开关失效带来的影响。


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    Title :

    Forced deceleration protection method for elevator


    Additional title:

    一种电梯强迫减速保护方法


    Contributors:
    RONG HONGKAI (author) / HUANG LIMING (author) / LIU ZHEN (author) / GUO YAO (author)

    Publication date :

    2025-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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