针对提升机变频传动应用中的重载启动工况进行了研究,着重研究了低频转矩特性和转矩提升在重载启动工况下的应用,提出了提升机在重载启动工况下变频器提升启动力矩的具体实现方法。 Aiming at the heavy-duty starting condition in the application of hoist frequency-variable transmission, the research on the application of low-frequency torque characteristic and torque boost under heavy-load start-up condition is put forward. In this paper, The specific method to improve the starting torque.