煤矿局部通风机综合控制系统研究

Study of Integrated Control System for Local Ventilator in Coal Mine

采用模糊控制和变频调速技术,局部通风机电动机根据掘进工作面瓦斯浓度、需风量及温度实现变频调速控制,自动改变风机送风量,实现风-电闭锁、瓦斯-电闭锁,系统能监测局部通风系统漏风率、供风量和瓦斯浓度,出现异常时,发出报警信号,切断电源。经Matlab仿真,得到仿真曲线,具有应用价值。

Using fuzzy control and frequency changing technologies, the local fan motor speed is controlled according to the gas density, airflow demand and temperature at the heading. The system will be able to automatically change the fan＇ s airflow, to realize the air-power lock and gas-power lock, to monitor the air leakage rate of local ventilation system, the air flow and gas density ; and to alert and cut off the power at the heading during abnormity. The simulative curve of system is gained by Matlab simulation.