伺服电动机的时间常数问题  

The Time Constant Problem of Servo Motor

作　　者：张文海[1] 

机构地区：[1]成都精密电机厂,四川成都610500

出　　处：《微特电机》2012年第9期75-76,共2页Small & Special Electrical Machines

摘　　要：概述了伺服电动机的电气时间常数、机械时间常数和机电时间常数的定义;分析了高速伺服电动机经减速器减速后可获得低速大转矩,但其机械时间常数比永磁直流力矩电动机大的原因;并解释了直流伺服电动机与交流伺服电动机的机械时间常数计算公式。The definitions of electric time constant, mechanical time constant, electromechanical time constant of setwo motor were summarized. The reason that high speed servo motor can obtain low speed and high torque through reducer, but its mechanical time constant is usually higher than which of permanent magnet DC torque motor was analyzed. And the formulas to calculate mechanical time constant of DC ＆ AC servo motors were explained.

关 键 词：伺服电动机 电气时间常数 机械时间常数 机电时间常数 

分 类 号：TM383.4[电气工程—电机]