摘要
伴随科技的迅猛发展,交流电机已逐步取代直流电机并广泛应用在轧机系统中。针对以往对轧机机电系统振动特性的研究往往忽略电机磁参数影响这一问题,考虑异步电机中漏磁系数、定子时间常数、转子时间常数等磁参数,把转子磁链电机模型与机械系统相结合,建立了轧机主传动系统机电耦合振动模型,此模型摆脱了以往机电耦合模型复杂繁琐的积分环节和惯性阻碍,并利用数值方法研究了漏磁系数、定子时间常数、转子时间常数对轧机主传动系统振幅与调节时间的影响。研究结果为进一步分析轧机主传动系统的振动现象奠定了理论基础。
With the rapid development of science and technology, asynchronous motor has gradually replaced the DC motor and is widely used in the rolling mill system In the previous research of main drive system,the influence of motor magnetic parameters is often ignored. For this problem, the vibration characteristics of the electromechanical coupling in the main drive system of rolling mill model is built by combining rotor flux model and mechanical system and taking asynchronous motor magnetic flux leakage coeffwient, the stator time constant and rotor time constant into account. This model gets rid of previous model＇s complicated integral part and inertia hinder. The asynchronous motor magnetic flux leakage coeffwient, the stator time constant and rotor time constant influence on amplitude and adjust time of main drive system is analyzed by numerical method. The research conclusions lay a theoretical foundation f or further studying vibration phenomenon in the main drive system of rolling mill.
出处
《机械设计与制造》
北大核心
2015年第8期128-132,共5页
Machinery Design & Manufacture
基金
河北省自然科学基金资助项目(F2014209192)
河北联合大学杰出青年基金资助项目(JP201301)
河北省教育厅重点资助项目(ZD20131011)
关键词
轧机
主传动系统
机电耦合
磁参数
振动
Rolling Mill
Main Drive System
Coupling
Magnetic Parameters
Vibration
