【作者】 朱熀秋； 郝建欣； 张伟霞； 潘伟； 刘贤兴；

【Author】 Zhu Huangqiu,Hao Jianxin,Zhang Weixia,Pan Wei,Liu Xianxing 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】 无轴承异步电机是一个强耦合的非线性复杂系统,实现其电磁转矩和径向悬浮力之间的成功解耦是电机稳定悬浮工作的关键。本文介绍了无轴承异步电机工作原理,建立了电机旋转部分和径向悬浮力部分的数学模型,构建了基于气隙磁场定向算法和转子磁场定向算法的矢量控制系统,并利用Matlab/Simulink工具箱对两种控制系统进行了仿真。仿真试验表明两种控制系统不仅可以实现转子稳定悬浮,而且基本实现了径向悬浮力和电磁转矩之间的解耦,最后根据仿真结果对两种磁场定向控制系统的性能进行了比较和分析。更多还原

【Abstract】 The bearingless induction motor is a strong-coupled complicated nonlinear system.The decoupling control of the torque and radial suspension forces is the base of the stable operation of the motor.In this paper,the principle of radial suspension force is expounded.The mathematics models of the rotation part of the motor and radial suspension force are presented.Then,two control system based on air-gap flux oriented control and rotor flux oriented control are designed.The two control systems are simulated with Matlab/Simulink toolbox.The simulation results have shown that the rotor can suspend steadily,torque and radial suspension subsystems can operate independently.According to the simulation results,the performances of rotor flux oriented control and air-gap flux oriented control are compared and analyzed.更多还原