期刊文献+

开关磁阻电机转子径向电磁合力的解析建模 预览

Analytical Modeling of Rotor Radial Electromagnetic Force in Switched Reluctance Motor
在线阅读 下载PDF
分享 导出
摘要 由于开关磁阻电机的双凸极结构及磁饱和特性的存在,运转过程中转子径向电磁力的表征缺乏系统有效的方法,造成电机转子振动和噪声分析困难。该文综合等效电路和麦克斯韦应力法,给出了单定子线圈激励下转子所受径向电磁力的表达式。在六对绕组分别采用方波电流和叠合电流激励的工况下,推导了偏心转子运转过程中所受径向电磁合力的解析表达式。在额定转速下,分析了转子所受径向电磁合力的时间历程和频谱分布规律。电磁有限元仿真计算表明该解析模型具有较高的精度,为后续分析开关磁阻电机转子的机电耦合振动奠定了基础。该文建模方法还可用于不同定转子极数的其他开关磁阻电机转子在运转过程中的径向电磁合力建模。 Due to double salient pole structure and magnetic saturation characteristic of switched reluctance motor (SRM), electromagnetic radial force expression of the rotor during the operation has been lack of a systematic and effective method, which makes it difficult to analyze vibration and noise. In this paper, equivalent circuit and Maxwell stress method was integrated to get radial electromagnetic force formula of rotor excited by a single stator coil. When the six pair windings are excited by square wave current or overlap current, the analytical functions of radial electromagnetic resultant in eccentric rotor are deduced, respectively. The time course and spectrum distribution of radical resultants are analyzed at rated speed. Through the simulation of electromagnetic finite element, it is proved that this analytical model has higher accuracy, which lays a foundation for subsequent rotor’s electromechanical coupling vibration in SRM. The method could also be used to model the radial electromagnetic resultant of the rotor in other SRM with different numbers of stator and rotor poles.
作者 王峰 吴志强 李亚杰 王远岑 Wang Feng;Wu Zhiqiang;Li Yajie;Wang Yuancen(Department of Mechanics School of Mechanical Engineering,Tianjin University,Tianjin 300072 China;Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control,Tianjin 300072 China)
出处 《电工技术学报》 EI CSCD 北大核心 2019年第5期934-945,共12页 Transactions of China Electrotechnical Society
基金 国家自然科学基金资助项目(11372211,11672349)。
关键词 开关磁阻电机 径向电磁力 偏心转子 电磁有限元 Switched reluctance motor radial electromagnetic force rotor eccentric electromagnetic finite element
作者简介 王峰,男,1980年生,博士研究生,研究方向为开关磁阻电机的振动与噪声控制。E-mail:wangfeng99033@163.com;通信作者:吴志强,男,1968年生,教授,博士生导师,研究方向为动力学与控制,非线性动力学。E-mail:zhiqwu@tju.edu.cn.
  • 相关文献

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈