江苏大学学报（自然科学版）2012，Vol.33Issue(6)：684-689,6.DOI:10.3969/j.issn.1671-7775.2012.06.012
一种减小磁悬浮开关磁阻电机损耗的新方法
A new method to reduce loss of bearingless switched reluctance motors
摘要
Abstract
To meet the performance requirements of low power consumption and small temperature rise of bearingless motors in flywheel energy storage, bioengineering and medical fields, a new method for reducing operation loss of bearingless switched reluctance motor ( BSRM) was proposed. The suspension force model and the torque model with the consideration of rotor eccentricity were built based on Maxwell stress tensor method. The model availability and accuracy were verified by finite element method. The influences of rotor eccentricity on suspension current and torque were analyzed to build copper and iron loss models of BSRM. The control system was designed. The copper loss, iron loss and average torque of BSRM were simulated by Matlab with different eccentricity. The results show that copper loss and iron loss are respectively reduced by 15. 5% and 10. 8% with increased average torque of 4. 8% when rotor is steady with eccentricity of 50 μm. The steady operation of BSRM with low loss can be realized by controlling rotor eccentricity in the region of steady magnetic suspension.关键词
开关磁阻电机/无轴承电机/悬浮力/偏心/损耗Key words
switched reluctance motor/bearingless motor/suspension force/eccentricity/loss分类
信息技术与安全科学引用本文复制引用
项倩雯,孙玉坤,嵇小辅..一种减小磁悬浮开关磁阻电机损耗的新方法[J].江苏大学学报（自然科学版）,2012,33(6):684-689,6.基金项目
国家自然科学基金资助项目(61074019) （61074019）
江苏省高校优势学科建设工程项目 （）
