基于逆系统内模的无轴承异步电机解耦控制  

Decoupling Control of Bearingless Induction Motor Based on Inverse System Internal Model

作　　者：王正齐[1,2] 周云红[1] 朱志莹[1] 卢冰洋 

机构地区：[1]南京工程学院电力工程学院,南京211167 [2]东南大学电气工程学院,南京210096

出　　处：《控制工程》2016年第11期1730-1734,共5页Control Engineering of China

基　　金：国家自然科学基金(51307077);江苏省博士后基金(1301021B);江苏省大学生实践创新计划(166201130060)

摘　　要：无轴承异步电机是非线性、多变量、强耦合的系统,特别是其转矩绕组和悬浮控制绕组之间存在很强的耦合关系。要实现电机稳定运行,必须要对这两套绕组实现非线性解耦控制。提出将内模控制与逆系统方法相结合的控制策略对无轴承异步电机进行非线性解耦控制,弥补了逆系统控制中PID调节器解耦的非理想性缺点。研究表明,系统响应速度快、抗扰性强,具有良好的动静态特性。The bearingless induction motor is a multi-variable, nonlinear and strongly-coupled system. There exists coupled relations between the torque windings and the suspend control windings. To realize the stable operation of the bearingless motor, it is necessary to realize decoupling control between the two windings. In this paper, a control strategy which combines the internal model control and the inverse system method is proposed to realize the dynamic decoupling control of the bearingless induction motor, which remedies the non-ideal decoupling of the PID controller in the inverse system. The simulation result shows that the system has advantages of fast response and strong interference rejection, and has nice dynamic and static characteristics.

关 键 词：无轴承电机 解耦 逆系统 内模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]