一种具有容错功能的无轴承薄片电机的原理及其实现  

Control Principle and Realization of a Type of Error Tolerant Bearingless Slice Motor

作　　者：朱俊[1] 廖启新[1] 邓智泉[1] 王晓琳[1] 

机构地区：[1]南京航空航天大学自动化学院航空电源航空科技重点实验室

出　　处：《电力电子》2008年第3期33-38,共6页Power Electronics

摘　　要：本文研究了一种可以实现容错功能的无轴承薄片电机的工作原理和结构设计。详细推导了当无轴承薄片电机在采用单绕组结构并采用定子绕组电流功率最优约束下的径向悬浮力和转矩的数学模型,并由此推导出了电机在绕组完整和绕组故障时的不同定子电流模型,同时给出了相应的控制策略和样机系统设计。实验样机调试结果表明:采用单绕组结构的无轴承薄片电机成功实现了转子在径向、轴向和扭转方向上的5自由度全悬浮。In this paper, the principle and structure design of a type of bearingless slice motor that has the function of error tolerance are discussed. The toque and radial direction levitation force models of tbe bearingless slice motor based on the single winding and stator current power optimal model are deduced, the different stator current models including Integrity windings and damaged windings are derivated and the corresponding control strategy and prototype system of the power optimal single winding bearingless slice motor are discussed. Experiment result shows that the rotor of single winding bearingless slice motor is suspended at 5 freedom degree including radial direction, axial direction and torsional direction and so on.

关 键 词：无轴承 薄片电机 单绕组 容错 

分 类 号：TM303.3[电气工程—电机] TP393.08[自动化与计算机技术—计算机应用技术]