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由于直流电动机制造工艺比较复杂,有色金属消耗量大;而异步电动机结构简单、运行可靠、成本低、维修容易、有色金属消耗量小,故以往在矿井提升设计中,一般电机容量在800千瓦以下的中小容量传动系统,均采用异步电动机交流传动系统。其电控设备为TKD系列。控制方法为转子外接金属电阻,而转差功率SP_1白白消耗于转子电阻之中,并且为有级调速、不平稳、有冲击,加速过程有噪音。
As the DC motor manufacturing process is more complex, large non-ferrous metal consumption; and asynchronous motor structure is simple, reliable operation, low cost, easy maintenance, non-ferrous metal consumption is small, so in the past in the mine to enhance the design, the general motor capacity of 800 kilowatts or less The small and medium-capacity transmission system, are used asynchronous motor AC drive system. The electronic control equipment for the TKD series. The control method is that the rotor is connected with the metal resistance, and the slip power SP_1 is consumed by the rotor resistance in vain, and there is a step-by-step speed regulation, unevenness and impact, and there is no noise in the acceleration process.