考虑电机内部因素影响的轧机主传动系统机电耦合振动特性研究

摘要

Aiming at the problem of rolling mill main drive system vibration researches,such as ignoring the influence of asynchronous motor itself,in this paper,considering asynchronous motor magnetic flux leakage coefficient,the stator time constant,rotor time constant and the nonlinear factors of rotors air friction,and putting the air friction into the rolling mill main drive system,the AC motor-rolling mill main drive system of electromechanical coupling model is established.The influences of the asynchronous motor magnetic flux leakage coefficient,the stator time constant,rotor time constant and the air friction coefficient to amplitude and adjusting time of main drive system were analyzed by numerical method.%针对轧机主传动系统振动研究往往忽略电机自身因素影响这一问题,考虑三相异步交流电机中漏磁系数、定子时间常数、转子时间常数和空气摩擦系数等电机内部参数,并融入电机内部转子空气摩擦这一非线性因素,建立了交流电机-轧机主传动系统机电耦合数学模型.利用数值方法分析了漏磁系数、定子时间常数、转子时间常数、空气摩擦系数对于轧机主传动系统振幅与调节时间的影响.