无轴承磁悬浮电机系统中的非接触传感器  

Non-touch Sensors in Bearingless Magnetic Suspension Motor System

作　　者：李希南[1] 王凤翔[2] 

机构地区：[1]中国科学院电工研究所,北京100080 [2]沈阳工业大学,辽宁沈阳110023

出　　处：《微特电机》2005年第3期36-39,42,共5页Small & Special Electrical Machines

基　　金：国家自然科学基金资助(59977014)

摘　　要：文章介绍了适用于磁悬浮电机系统的非接触式转子位置传感器,对其原理、性能以及适用范围作了比较,系统地研究了涡流传感器的动、静态特性,分析了转子检测系统的误差来源及表现形式,提出了消除方法。给出了涡流传感器对一台无轴承磁悬浮电机系统转子位置检测的应用实例及其结果。结果说明涡流传感器结构简单,动态性能好,输出信号强,可以满足磁悬浮电机系统多自由度复杂控制的要求。Many contactless rotor position sensors can be used in magnetic suspension motors systems. General principles,performances and different situations of the sensors are compared. Dynamic and static characteristics of an eddy-current sensor are studied systemically. Errors and the methods to eliminate them in the rotor position detection system are given. A testing application example of eddy-current sensor in a magnetic suspension motor is provided.The results show that the eddy-current sensor can be the better candidate meeting with the multi-freedom degree complex controls of the magnetic suspension system for its small size,high sensitivity,anti-noise and preferable dynamic performance.

关 键 词：电机系统 转子位置检测 轴承 涡流传感器 多自由度 非接触 静态特性 磁悬浮 复杂控制 输出信号 

分 类 号：TM33[电气工程—电机] TP212[自动化与计算机技术—检测技术与自动化装置]