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电机车是矿山井下主要运输设备,现以ZK14-7/550架线式电机车为例,对使用脉冲调速系统与使用串并联调速系统进行分析对比。 1 相同部分 1.1 励磁 采用2台ZQ-52型直流电动机作为架线式电机车的牵引电机,激磁绕组通用,仍用串激磁方式,具有比它激、并激、复激电动机在井下环境中不可替代的优点:(1)起动特性好,能以不大的起动电流获得较大的起动牵引力;(2)串激电动机具有软特性,牵引力和转速随列车的运行阻力行驶条件自动调节;(3)
Electric locomotives are the main transportation equipment in underground mine. Now ZK14-7 / 550 overhead locomotive is taken as an example to analyze and compare the use of pulse speed control system and serial-parallel speed control system. 1 The same part 1.1 Excitation 2 ZQ-52 DC motor used as a traction motor traction motor, excitation winding common, still using series excitation method, with its excitation, and excited, complex excitation motor in the underground environment can not The advantages of the alternative are: (1) good start-up characteristic and large starting starting force with a small starting current; (2) the series motor has the soft characteristic that the traction and speed automatically adjust according to the running resistance of the train; )