The design of the low-frequency power is the key factor to the control process of the mine lift.
在交流提升机的自动控制中，低频电源的设计是低频拖动控制的关键。
For a mine lift its peculiarities, major parameters, essentials for designing and application are introduced briefly in this paper.
介绍了矿用电梯的特点、主参数、设计要点及其应用。
Introduces the working-case and the controlling-process of the mine lift, analyses the principle of variable frequency adjust speed and energy saving in terms of theory.
介绍了煤矿提升机的工作情况和控制过程，从理论上分析了提升机变频调速和节能的基本原理。
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