两相同步对称励磁模式开关磁阻电机的电感特性  

Inductance Characteristics of Switched Reluctance Motor in a Symmetrical Two-phase Excitation Mode

作　　者：朱曰莹[1] 赵成文 刘成强 ZHU Yueying;ZHAO Chengwen;LIU Chengqiang(College of Mechanical Engineering,Tianjin University of Science & Technology,Tianjin 300222,China;Shandong Shifeng Group Co.,Ltd.,Liaocheng 2528001,China)

机构地区：[1]天津科技大学机械工程学院,天津300222 [2]山东时风(集团)有限责任公司,聊城252800

出　　处：《天津科技大学学报》2019年第3期60-67,共8页Journal of Tianjin University of Science & Technology

基　　金：国家自然科学基金资助项目(51505332);天津市应用基础与前沿技术研究计划资助项目(15JCQNJC06900)

摘　　要：为研究两相同步对称励磁模式下开关磁阻电机的电感特性,在提出的新型两相对称励磁绕线方式的基础上,采用静态电磁场有限元分析方法对该新型励磁方式进行了自感与互感特性的研究.通过与传统单相励磁方式的对比分析,得到两种方式下各电感参数的规律特性,进而提出自感比例系数与互感比例系数,得到了两种方式下的电感参数差异规律特性.在与单相励磁模式下两相转矩之和进行数值对比的基础上分析了互感对两相励磁转矩特性的影响.理论分析和实验研究表明:相较传统单相励磁方式,两相同步对称励磁模式各相自感曲线呈不对称分布,相间互感对磁场分布影响更大,同时互感作用在一定条件下提高了该模式的转矩特性.这可为两相励磁模式开关磁阻电机的准确建模、无位置控制及高性能控制提供理论依据.In order to analyze the inductance characteristics of the switched reluctance motor(SRM)in a symmetrical twophase excitation mode,a novel two-phase short-flux-path excitation mode was established first,and then the characteristics of self-inductance and mutual inductance in the novel excitation mode were studied by using finite element analysis of static electromagnetic field. The law of inductance parameters in two modes was obtained through contrastive analysis against traditional single-phase excitation mode. On that basis,a self-inductance ratio coefficient and a mutual inductance ratio coefficient were presented and the laws of inductance parameter difference in the two modes were obtained. After comparing the sum torque of the two phases in the traditional one-phase excitation mode,the influence of mutual inductance on torque characteristics in the symmetrical two-phase excitation mode was analyzed. The theoretical analysis and experiment results show that,compared with the traditional one-phase excitation mode,the self-inductance distribution in the novel excitation mode is asymmetrical,and the mutual inductance can generate greater influence on magnetic field distribution. Meanwhile, the torque characteristics in the symmetrical two-phase excitation mode is improved by the mutual inductance between two phases. The research can provide some theoretical basis for accurate modeling and sensor-less and high performance control of the two-phase excitation SRM.

关 键 词：开关磁组电机 两相励磁 电感 互感 

分 类 号：TM352[电气工程—电机]