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矿井主扇风机的电力拖动,与煤矿安全和经济效益的关系很大。长期以来,多采用绕线式异步电动机或同步电动机。前者的启动、调速性能好,但全速性能差;后者的调速性能差,但全速性能好。目前国外有采用绕线式异步机和同步机双重拖动的方式。例如苏联克里夫巴斯某风井的BP—4.5型主扇拖动,就是采用两台电动机同轴联接,一台为4000kW,500r/min的同步机,另一台为500kW,240r/min的绕线式异步机。生
The electric fan of the main fan of the mine has a great relationship with the safety and economic benefits of the coal mine. For a long time, the use of multi-winding asynchronous motor or synchronous motor. The former start, speed performance, but full speed performance is poor; the latter speed performance is poor, but full speed performance. At present, foreign countries have adopted double winding method of winding asynchronous machine and synchronous machine. For example, a BP-4.5 main fan dragged by a wind shaft in Cliff Bath, the Soviet Union, uses two motors to be coaxially coupled. One is a synchronous machine of 4000kW and 500r / min, and the other is 500kW and 240r / min Winding asynchronous machine. Health