共悬浮绕组式无轴承开关磁阻电机两相导通解析模型建立及分析  

Establishment and analysis of mathematical model for sharing suspension winding bearingless switched reluctance motor considering two-phase excitation

作　　者：黄柱良 王喜莲[1] 王璇 崔睿珍 马彦深 逯华 HUANG Zhuliang;WANG Xilian;WANG Xuan;CUI Ruizhen;MA Yanshen;LU Hua(School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《北京交通大学学报》2023年第4期146-153,178,共9页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金(50907004);中央高校基本科研业务费专项资金(2022JBZY015)。

摘　　要：针对共悬浮绕组式无轴承开关磁阻电机(Sharing Suspension Winding Bearingless Switched Reluctance Motor,SSW-BSRM)在某些位置悬浮力不足的问题,建立了适用于SSW-BSRM的两相导通解析模型.首先,基于SSW-BSRM两相导通的等效磁路图建立电感矩阵,在此基础上,推导得到径向悬浮力与电磁转矩的解析表达式.其次,通过与有限元计算结果对比验证了所推导模型的正确性和优良特性.最后,对两相导通模式进行优化,减小了两相导通模式下所产生的负转矩对电机运行的影响.研究结果表明:在两相导通模式下,SSW-BSRM具有良好的悬浮特性,优化后的两相导通模式能减小负转矩对电机运行的影响.In order to address the issue of inadequate radial suspension force at some positions in the Sharing Suspension Winding Bearingless Switched Reluctance Motor(SSW-BSRM),a twophase excitation analytical model suitable for SSW-BSRM is established.Firstly,based on the equivalent magnetic circuit diagram of SSW-BSRM with two-phase excitation,the inductance ma⁃trix is derived,and then the analytical expressions for radial suspension force and electromagnetic torque are obtained.Secondly,the correctness and excellent characteristics of the derived model are verified by comparing with the finite element calculation results.Finally,the two-phase excita⁃tion mode is optimized to mitigate the impact of torque reduction on motor operation.The research results show that SSW-BSRM exhibits good suspension characteristics in the two-phase excita⁃tion mode,and the optimized two-phase excitation mode reduces the influence of torque reductio on motor operation.

关 键 词：共悬浮绕组 无轴承开关磁阻电机 两相导通 数学模型 

分 类 号：TM352[电气工程—电机]