The invention belongs to a special high-voltage frequency converter technology and provides a low-frequency direct-drive high-voltage frequency converter of an elevator. The low-frequency direct-drivehigh-voltage frequency converter of the elevator comprises a rectifier transformer, a low-frequency power unit, a main control system and a high-precision encoder. The rated capacity S0 of the rectifier transformer is selected at least according to 1.6 times of the rated power Pe of a lifting motor, namely S0 is greater than or equal to 1.6 Pe; the rectifier transformer is provided with a group of primary windings and 3*j groups of secondary windings; the primary winding is connected with a high-voltage switch cabinet for supplying power; and the rated capacity S1 of each group of secondary windings is equal to S0/(3*j), and the secondary windings are connected with three-phase input ends R, S and T of the low-frequency power unit through power cables in a one-to-one correspondence mannersuch that the total volume and weight of equipment are reduced, the equipment investment and operation and maintenance cost are saved, and the social and economic benefits are remarkable.

    本发明属于特型高压变频器技术,提出一种提升机低频直驱高压变频器。提出的提升机低频直驱高压变频器包括有整流变压器、低频功率单元、主控系统和高精度编码器;所述整流变压器的额定容量S至少按照提升电动机额定功率P的1.6倍选取,即S≥1.6P;所述的整流变压器具有一组原边绕组和3*j组副边绕组;所述的原边绕组与供电的高压开关柜相连;每组副边绕组的额定容量S=S/(3*j)并通过动力电缆与所述低频功率单元的三相输入端R、S、T相连,一一对应,本发明既减少了设备总体体积和重量,又节省了设备投资及运维成本,社会和经济效益显著。


    Access

    Download


    Export, share and cite



    Title :

    Low-frequency direct-drive high-voltage frequency converter of elevator


    Additional title:

    一种提升机低频直驱高压变频器


    Contributors:

    Publication date :

    2020-06-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / 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



    Elevator frequency converter speed ring PI parameter self-learning method, frequency converter and medium

    ZHANG WENJUN / DU YONGCONG / GUO ZHIHAI | European Patent Office | 2022

    Free access

    A REGENERATIVE FREQUENCY CONVERTER AND AN ELEVATOR SYSTEM

    ESKANDARI BAHMAN | European Patent Office | 2023

    Free access

    Exponential function based efficient elevator operation curve correction method of elevator frequency converter

    YANG MINGHUI / WANG GUOXI / TANG PANPAN et al. | European Patent Office | 2015

    Free access

    Control method for stable hovering of high-voltage permanent-magnet direct-drive elevator

    LIU FUSHUN / ZHAO SHUGUO / RONG KAI et al. | European Patent Office | 2022

    Free access