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目前矿山绞车的滑环电机采用在转子中加减电阻的调速方法，启动后切除电阻，减速时将电阻逐段加入，这种方法是有级的，启动加速过程不平稳，启动力矩波动大，增加了电能损耗，噪声大．所需电阻、接触器、继电器多，成本高。而采用晶闸管控制绞车滑环电机的无级调速控制器，实
At present, the slip ring motor of the mine winch adopts the speed regulation method of adding and subtracting the resistance in the rotor. After the start, the resistance is cut off, and the resistance is added step by step when the speed is reduced. The method is step-like, and the starting acceleration process is not stable and the starting torque fluctuates greatly , Increase the power loss, noise. The required resistance, contactors, relays and more, high cost. The use of thyristor control winch slip ring motor stepless speed controller, real