总结煤矿副井直流发电机-电动机组提升电控系统改造的实施方法，对该系统进行简要分析。
To summary the coal of vice-well continuous current generator-motor the set drag and hoists of the control system reform to into practice the methods, and proceeds to that system synopsis analysis.
该系统由变速驱动控制器、电动机、发电机、逆变器及微机组成。
This system is composed of variable velocity driver, motor, generator, inverter and computer.
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