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煤矿矸山绞车操作频繁,在一个提升周期内分加速、等速,减速、翻斗车卸载几个阶段,其中加速、减速、翻斗车卸载都需在电动机转子回路串入附加电阻进行速度调整,调速阶段转子电阻消耗大量电能,增加了矿井用电成本。矸山绞车采用变频调速技术,将转子附加电阻甩掉不用,转子绕组短接
Coal gangue winch operation is frequent, in a promotion cycle of sub-acceleration, constant speed, deceleration, dump truck unloading several stages, including acceleration, deceleration, dump truck unloading all need to be inserted in the motor rotor loop additional resistance for speed adjustment, transfer Speed stage rotor resistance consumes a lot of energy, increasing the cost of mine electricity. Gangue winch using frequency control technology, the rotor additional resistors do not get rid of the rotor winding shorted