一、概述提升机交流拖动电控系统,目前仍然采用金属电阻调速,等速阶段短接按全部转子电阻,对于减速段有电动减速、自由滑行和制动减速几种工作方式。在减速阶段现在采用有动力制动减速(使用发电机组或可控硅电源)、低频电源制动减速(使用低频发电机组或可控硅低频电源)。 First, an overview of hoist AC drag electric control system, the current is still using metal resistance speed, constant speed short circuit by all the rotor resistance, the deceleration section has electric deceleration, free-gliding and brake deceleration several working methods. In the deceleration phase, dynamic brake deceleration (using genset or thyristor power supply) and low frequency power brake deceleration (using low frequency genset or thyristor low frequency power supply) are now used.