驱动弹性负载的调速传动

弹性负载会导致调速系统弹性振荡,抑制扭振是调速传动的重要课题之一.介绍了3类弹性负载弹性振荡的发生原因及其抑制方法.这3类弹性负载是:多质量传动系统、有弹性机械联系的多电机传动系统和弹性张力系统.为抑制扭振:多质量传动系统用陷波滤波器,有机械联系之多电机传动系统用SLBS负载均衡系统,弹性张力系统借助于在力转矩给定中引入转速增量信号.

Variable Speed Drives with Elastic Loads

Elastic loads of variable speed drives lead to elastic vibration some times.How to suppress the vibration is one of important task of variable speed drives.The vibration reasons and suppressing methods of three kinds of elastic loads are investigated in this paper.The three kinds of loads are: multi-mass drive system,multi-motor drive system with elastic mechanical connection and elastic tension system.To suppress elastic vibrations following methods are used:band-stop filter for multi-mass drive system,SLBS system for multi-motor drive system,with the help of speed increment signal for elastic tension system.