摘要
为了保证采煤机截割部免受硬质岩层载荷冲击,提高煤炭开采效率,研究了一种采煤机变速截割控制策略。首先,以MG300/700-WD型采煤机为研究对象,分析了滚筒采煤机截割部传动系统的基本工作原理;其次,研究了滚筒驱动电机和牵引电机的调速方法,采用矢量控制对异步电机进行调速;最后在仿真软件中模拟了采煤机遇到截割阻抗突增的变速截割过程。仿真结果表明:所研究的控制策略能够避免采煤机经受较大冲击,提高采煤机工作效率。
In order to protect the cutting part of shearer from the impact of hard rock load and improve coal mining efficiency,a variable speed cutting control strategy of shearer is studied.Firstly,taking MG300/700-WD shearer as the research object,the basic working principle of the cutting part transmission system of drum shearer is analyzed.Secondly,the speed regulation methods of drum drive motor and traction motor are studied,and the asynchronous motor is regulated by vector control.Finally,the variable-speed cutting process of shearer encountering sudden increase of cutting impedance is simulated in the simulation software.The simulation results show that the control strategy studied can avoid the great impact on the shearer and improve the working efficiency of the shearer.
作者
任鹏飞
REN Peng-fei(Safety Supervision and Inspection Center,Xishan Coal Electricity Group Co.,Ltd.,Taiyuan 030051,China)
出处
《机械工程与自动化》
2022年第6期216-217,共2页
Mechanical Engineering & Automation
关键词
采煤机
变速截割控制
截割性能优化
shearer
variable speed cutting control
cutting performance optimization
作者简介
任鹏飞(1987-),男,山西长治人,工程师,本科,从事煤矿机电设备研究与应用方面的工作。
