【作者】 潘伟； 许波； 孙晓东； 朱熀秋；

【Author】 PAN Wei,XU Bo,SUN Xiaodong,ZHU Huangqiu School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,P.R.China

【机构】 江苏大学电气信息工程学院；

【摘要】 无轴承异步电机电磁关系复杂,是一种多变量、非线性强耦合系统,在转矩绕组和悬浮绕组之间存在着强耦合,要实现转子稳定悬浮运行,必须对电机转子径向偏心位移进行准确控制.本文提出了一种全新的控制方法:无轴承异步电机转子偏心位移的直接控制.在控制系统中,电机转矩绕组采用通用变频器进行控制,悬浮力子系统采用位移闭环控制,推导了径向悬浮力与径向位移偏心的关系,设计了控制系统,并且进行了仿真.仿真结果表明,该方法实现转子偏心位移的直接控制,并且具有良好的动静态特性.更多还原

【Abstract】 The bearingless induction motor has complicated electromagnetism relation,and is a multi-variable,nonlinear,and strong-coupled complicated system.There is strong coupling between the torque windings and radial suspension force windings, so the rotor radial eccentric displacement must be controlled accurately for realizing suspension of rotor steadily.In the control system,the torque windings are controlled by a versatile frequency converter,the sub-system of suspension force are controlled by displacement closed loop control.The relation expressions are deduced between radial suspension force and radial eccentric displacement,the control is designed,and the simulation is carried out.The simulation results show that the method can realize direct control of the rotor eccentric displacement,and the control has good dynamic and static performance.更多还原