摘要
在介绍无轴承电动机轴向止推主动磁轴承结构和工作原理的基础上 ,阐述了其悬浮力产生原理 ,导出了磁轴承吸力方程 ,推导了位移刚度、电流刚度和最大承载力的数学表达式 ,给出了磁轴承气隙磁感应强度、磁极面积、电磁铁参数、线圈腔参数、辅助轴承等设计或计算方法。建立了磁轴承控制系统的数学模型 ,给出了控制器控制算法和控制系统仿真结果 ,并用模拟和数字控制器实现了磁轴承稳定悬浮。研究表明 ,实验结果和理论设计基本一致 ,提出的设计、计算和控制方法是切实可行的。研究成果对制作无轴承电动机轴向定位磁轴承、
Based on configuration and working principle of magnetic bearing used in the axial direction of bearingless motors the principle of producing suspension force is expounded The equation of attraction is also educed The mathematical expression of displacement stiffness? current stiffness and the maximum bearing capacity are derived A set of designing or calculating methods, such as gap magnetic induction intension, pole area, electromagnet iron parameters, winding cavity parameters, sustaining bearing, and so on, is given The control model of system is built, and the control arithmetic of controller and some results of simulation are also given, and the analog and digital controller has realized magnetic bearing steady syspension The conclusions of researching have showed the result of experiments accords with theory designing The method of designing, calculating and controlling are viable The research production has guide and reference value for developing magnetic bearings used in the axial direction of bearingless motors, five degree freedom active magnetic bearing and high speed flywheel energy storage systems in practice
出处
《电工技术学报》
EI
CSCD
北大核心
2002年第3期12-16,共5页
Transactions of China Electrotechnical Society
基金
江苏省自然科学研究项目 (0 1KJB470 0 0 1 BG2 0 0 10 2 9)
国家自然科学基金资助项目
关键词
无轴承电动机
磁轴承
结构
参数
仿真
Bearingless motor, magnetic bearing, structure, parameter, simulation
