中国电机工程学报2016，Vol.36Issue(23)：6528-6535,8.DOI:10.13334/j.0258-8013.pcsee.152848
计及边缘效应的交流混合磁轴承建模
Modeling for AC Hybrid Magnetic Bearings Considering Edge Effect
摘要
Abstract
In modeling proceeding of hybrid magnetic bearings (HMBs), factors such as the eddy current effect, the edge effect and the flux leakage are commonly ignored, which decreases the precision of the mathematical model of suspension forces. In order to improve the precision, an improved mathematical model of hybrid magnetic bearings considering the edge effect was established. An AC hybrid magnetic bearing was taken as an example, its working principle and features of flux distribution were analyzed. Then, the magnetic field division method was employed to calculate the permeances of different regions located around the end portion of the pole. The permeances were added by the superposition principle, and the total permeance of the single pole was obtained. The accurate model was obtained by using the equivalent magnetic circuit method. The experimental results show that the error between original model values and experimental values is about 10%, the error between improved model values and experimental values is less than 5%. The results of the comparison have verified that the consideration of the edge effect can effectively improve the precision of the mathematical model of suspension forces.关键词
混合磁轴承/悬浮力/等效磁路法/数学模型/边缘效应Key words
hybrid magnetic bearing/suspension force/equivalent magnetic circuit method/mathematical model/edge effect分类
信息技术与安全科学引用本文复制引用
朱熀秋,丁书玲..计及边缘效应的交流混合磁轴承建模[J].中国电机工程学报,2016,36(23):6528-6535,8.基金项目
国家自然科学基金(50575099,61174055)；江苏省“333工程”资助项目(2014)；江苏省“青蓝工程“资助项目(2014)；江苏高校优势学科建设工程资助项目(2014)。National Natural Science Foundation of China (50575099,61174055) （50575099,61174055）
Jiangsu Province“333 Project”Research Projects(2014) （2014）
Jiangsu Province“ Qinglan Project ”(2014) （2014）
The Priority Academic Program Development of Jiangsu Higher Education Institutions(2014) （2014）
