摘要
介绍了起重机在变频调速时,在不同起重量对应不同的起升速度(即重载低速、轻载高速)时起升机构变频电机的选取原则和方法。
The paper introduces the selection principles and methods for variable frequency motors of the hoisting mechanism when different lifting capacities correspond to different lifting speeds（ heavy-load low speed and light-load high speed） during frequency conversion and speed regulation of the crane.
出处
《起重运输机械》
2015年第6期121-123,共3页
Hoisting and Conveying Machinery
关键词
变频电机
基准工况
功率输入前提
扭矩输出前提
恒功率调速
恒扭矩调速
variable frequency motor
basic operation condition
precondition of power input
precondition of torque output
constant-power speed regulation
constant-torque speed regulation
