• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (3): 8-17.doi: 10.3901/JME.2018.03.008

• 机构学及机器人 • 上一篇    下一篇

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重型工作面输送机变频驱动与传动

李阳1, 何柏岩1, 袁鹏飞1, 聂锐1, 李国平2   

  1. 1. 天津大学机构理论与装备设计教育部重点实验室 天津 300354;
    2. 中煤张家口煤矿机械有限责任公司 张家口 075025
  • 收稿日期:2017-06-12 修回日期:2017-10-19 出版日期:2018-02-05 发布日期:2018-02-05
  • 通讯作者: 何柏岩(通信作者),男,1973年出生,博士,教授,博士研究生导师。主要研究方向为机械多体动力学与控制。E-mail:hebaiyan@tju.edu.cn
  • 作者简介:李阳,男,1991年出生。主要研究方向为机电系统动力学建模与仿真。E-mail:liyang5537@tju.edu.cn;袁鹏飞,男,1988年出生,博士研究生。主要研究方向为系统动力学建模与仿真,结构可靠性。E-mail:hbgdypf@163.com;聂锐,女,1990年出生,博士研究生。主要研究方向为机电系统动力学建模与仿真,参数优化。E-mail:nierui_ok@126.com;李国平,男,1963年出生,博士,研究员级高级工程师。主要研究方向为刮板输送机设计与制造。E-mail:lgp@zmm.com
  • 基金资助:
    国家自然科学基金资助项目(51375330)。

Variable Frequency Drive and Transmission System of the Heavy Armoured Face Conveyor

LI Yang1, HE Baiyan1, YUAN Pengfei1, NIE Rui1, LI Guoping2   

  1. 1. Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300354;
    2. China Coal Zhangjiakou Coal Mining Machinery Co., Ltd., Zhangjiakou 075025
  • Received:2017-06-12 Revised:2017-10-19 Online:2018-02-05 Published:2018-02-05

摘要: 为解决工作面输送机启动困难、多机驱动功率不均衡等问题,可采用变频驱动这一软启动方式来改善其启动性能,但变频控制策略与整机动力学的适配协同是有效发挥变频驱动优势的重要课题。根据变频电动机的机械特性曲线建立电动机模型,将输送机的链传动系统离散成多个Kelvin-Vogit模型。利用Matlab/Simulink软件平台,建立了输送机整机系统模型,分析了变频驱动的启动效果及对链传动系统动力学行为的影响,给出了软启动性能评价指标。以SGZ1000/2×1000型输送机为例,对满载启动工况进行了数值仿真。分析不同控制参数对输送机启动过程的影响,得到了最优控制策略。与同等规格/工况下的液力偶合器驱动对比表明:合理的变频驱动控制策略可以明显改善输送机软启动性能,启动平稳且减小了系统机械冲击,并可实现多机驱动功率平衡,有效解决了重载难启动等问题。

关键词: 变频驱动, 工作面输送机, 系统模型, 性能指标

Abstract: The variable frequency drive has been adopted to solve the problems of smooth starting and imbalance of multi-driving for the armoured face conveyor recently. In order to take full advantage of this soft start method, the obtaining of frequency control strategy and the systematic dynamic analysis should be combined. The electromechanical model of the variable frequency motor is established according to the mechanical characteristic curve and the chain transmission system is discretized into multiply Kelvin-Vogit models. The systematic electromechanical model of an armoured face conveyor is established by Matlab/Simulink. Then, the effect of the variable frequency drive on the dynamic behaviors of the chain transmission system is analyzed, and the performance evaluation index of the soft start is introduced. A numerical simulation about the SGZ1000/2×1000 conveyer on the full loading condition is provided as an example. The influence of control parameters on the starting process is analyzed, and an optimal control strategy is obtained. After compared with the system driven by the motor and hydraulic coupling under the same working condition, it can be concluded that reasonable control parameters can obviously improve the soft start performances, ensure a smooth startup, reduce mechanical impact, achieve the power balance of multi-driving, and solve the startup problems under heavy loads.

Key words: armoured face conveyor, performance evaluation, systematic model, variable frequency drive

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