The main fan is one of the most important equipments in coal mine. The ventilation volume will change according to production needs, so the fan speed regulation is inevitable. In the past, the speed control method is relatively backward, and the frequency control has been widely recognized currently in the coal mine system. With superior speed control performance of the frequency inverter, it can regulate the speed of the main motor of the fan according to the production needs, so a to reduce power consumption. But for different coal mines, we should develop specific programs combined with the actual situation in order to achieve savings in investment and energy conservation.%煤矿主通风机是煤矿最重要的设备之一.由于生产需要,通风量根据需要会发生变化,故对通风机调速不可避免.以往的调速方法比较落后,变频调速目前在煤矿系统已被普遍认知.变频器精准、优越的调速性能,可根据生产需要对通风机主电动机进行无级调速,降低电耗.但对于不同的煤矿应结合实际情况制定具体方案,才能实现节省投资、节约能源.
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