The invention discloses a detection method of a star sealing contactor for an elevator, which comprises the following steps of: 1, when no output contactor exists, keeping a PM motor to be stopped and a main contact of the star sealing contactor to be in a closed state, and entering a step 2; when the output contactor exists, closing the output contactor to keep the PM motor stop and the main contact of the star sealing contactor in a closed state, and entering the step 2; 2, any two or three of the U phase, the V phase and the W phase of the frequency converter output a small voltage, and the step 3 is executed; and step 3, star sealing function detection is carried out according to the information related to the phase current. In addition, the invention further discloses a detection method of the star sealing contactor for the elevator with the output contactor. Whether the star sealing contactor for the elevator is in an effective state or not can be detected, a brake does not need to be released, and no safety risk exists.

    本发明公开的电梯用封星接触器检测方法,包括如下步骤:步骤一:当无输出接触器时,保持PM电机停止、封星接触器主触点闭合状态,进入步骤二;当有输出接触器时,闭合输出接触器保持PM电机停止、封星接触器主触点闭合状态,进入步骤二;步骤二:变频器的U相、V相、W相中的任意两相或者三相输出一个较小的电压,进入步骤三;步骤三:根据相电流相关的信息进行封星功能检测。另外本发明还公开了有输出接触器的电梯用封星接触器检测方法。本发明可检测电梯用封星接触器是否处于有效状态,且不需释放制动器,无安全风险。


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    Title :

    Elevator star sealing contactor detection method for controlling permanent magnet synchronous motor based on frequency converter


    Additional title:

    一种基于变频器控制永磁同步电机的电梯用封星接触器检测方法


    Contributors:
    ZHOU GENFU (author) / YANG YAJUN (author)

    Publication date :

    2022-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B66B Aufzüge , ELEVATORS / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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