煤炭工程 ›› 2021, Vol. 53 ›› Issue (5): 136-141.doi: 10.11799/ce202105026

• 研究探讨 • 上一篇    下一篇

永磁外转子提升机变频调速系统研究

张利男1,寇子明1,吴娟2,朱克亮3,朱丽鹏1   

  1. 1. 太原理工大学
    2. 太原理工大学机械工程学院
    3. 贵阳高原矿山机械股份有限公司
  • 收稿日期:2020-07-09 修回日期:2020-08-15 出版日期:2021-05-20 发布日期:2021-05-17
  • 通讯作者: 寇子明 E-mail:zmkou@163.com

Research on variable frequency speed control system of External rotor permanent magnet elevator

  • Received:2020-07-09 Revised:2020-08-15 Online:2021-05-20 Published:2021-05-17

摘要: 传统矿井提升机多采用交流异步电动机和减速器组成的传动结构以及TKD电控系统进行调速,存在起动电流过大、工作效率低、能耗大、维护量大、噪声大等问题。为此提出永磁外转子提升机,其采用外转子永磁同步电机与提升机卷筒一体化结构,配合先进的变频调速系统,具有传动结构简单,高效节能,起动频率低,低速运行平稳,以及维护量小、噪声小等优点,解决了传统提升机长期存在的问题。对永磁外转子提升机变频调速系统(分为矢量控制系统和直接转矩控制系统)进行原理分析和仿真研究,结果表明:变频调速系统的能够实现永磁外转子提升机的转速(或转矩)闭环控制,达到了平稳运行的效果|矢量控制系统的转矩和转速响应平滑|直接转矩控制的转矩和转速更快速,但是存在转矩脉动比较大的问题,需要采用优化方法对转矩脉动进行消除。

关键词: 永磁外转子提升机, 变频调速系统, 矢量控制, 直接转矩控制

Abstract: The traditional mine hoist adopts the transmission structure composed of AC asynchronous motor and reducer and the TKD electronic control system to adjust the speed.This paper puts forward the permanent magnet rotor winding machine, its external rotor permanent magnet synchronous motor with integrated structure of the hoist drum with advanced frequency control system, has the transmission of simple structure, high efficiency and energy saving, start frequency is low, low speed running smoothly, and maintain the advantages of small volume, low noise, solves the problems existing in the traditional elevator long-term.In this paper, the principle analysis and simulation research are carried out on the variable frequency speed control system of the permanent magnet external rotor hoist (which is divided into vector control system and direct torque control system). The research results show that the variable frequency speed control system can realize the speed (or torque) closed-loop control of the permanent magnet external rotor hoist, achieving the effect of smooth operation.The torque and speed responses of vector control system are smooth.The torque and speed of DTC are faster, but the torque ripple is larger, so the optimization method is needed to eliminate the torque ripple.