无轴承二极电机麦克斯韦磁悬浮力解析模型  

The analytical model of Maxwell magnetic suspension force of twopole bearingless motor

作　　者：卜文绍[1] 黄声华[1] 万山明[1] 

机构地区：[1]华中科技大学电气与电子工程学院

出　　处：《电机与控制学报》2006年第5期443-446,共4页Electric Machines and Control

基　　金：湖北省自然科学基金项目(2005ABA301)

摘　　要：针对相关电感参数难以通过实验精确测量而无法实现磁悬浮力精确控制的问题,根据电机磁路原理,推导出了拥有四极悬浮控制绕组的柱形转子无轴承二极电机各电感参数的一般化解析计算模型。基于该参数模型和电机电磁场虚位移原理,推导出了一般化Maxwell磁悬浮力精确计算模型,并结合电机具体特点给出了SPM永磁型和感应型无轴承电机的磁悬浮力精确计算模型和各自磁悬浮力解耦控制策略的分析,从而为进一步深入研究无轴承二极电机动态运行行为和设计高精确度解耦控制器打下了理论基础。To solve the problem that relevant electromagnetic parameters can＇t be measured adequately and of being difficult to control the magnetic suspension force correctly, each inductance-parameter＇s accurate calculating model of two-pole bearingless motors with four-pole suspension windings and cylindrical iron core rotor is analyzed and deduced in detail, based on the motor＇s magnetic circuit principium. Based on these inductance models and virtual placement principium, the Maxwell magnetic suspension force＇s universal calculating model is deduced in detail. And based on the general magnetic suspension force model and the specificities of SPM and induction type of bearingless motors, their magnetic suspension force＇s calculating models are given, and the decoupling control strategies are analyzed respectively. The theory foundation is made solidly for the next study of dynamic representation of two-pole bearingless motor and the study of the devising of the decoupling controller with higher accuracy.

关 键 词：无轴承电机 电感矩阵 磁悬浮力 解析模型 

分 类 号：TM343[电气工程—电机]