辅助极一体式永磁同步直线电机端部定位力抑制技术  

End Effect Detent Force Reduction for Permanent Magnet Linear Synchronous Motors with Auxiliary Poles One-Piece Structure

作　　者：寇宝泉[1] 张赫[1] 郭守仑[1] 张海林[1] 金银锡[1] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《电工技术学报》2015年第6期106-113,共8页Transactions of China Electrotechnical Society

基　　金：国家科技重大专项(2009ZX02207-001);国家自然科学基金(51177023);国际科技合作(2010DFR70580)资助项目

摘　　要：为了抑制永磁同步直线电机的端部定位力,提出一种辅助极一体式永磁同步直线电机(Auxiliary Poles-Permanent Magnet Linear Synchronous Motor,AP-PMLSM),具有端部定位力小、结构强度高、加工制造简单等特点。基于侧向力方法对AP-PMLSM的端部定位力进行解析,推导出使AP-PMLSM端部定位力达到极小值时的辅助极位置和辅助极宽度的表达式。建立了14极12槽AP-PMLSM的有限元模型,有限元仿真结果与解析结果基本一致,验证了理论分析的正确性。In order to reduce the end effect detent force of permanent magnet linear synchronous motor, a novel permanent magnet linear synchronous motor with auxiliary poles one-piece structure is put forward in this paper. The proposed linear motor has the features of low end effect detent force, high strength of structure, simple in manufacture, and so on. Based on the lateral force method, the end effect detent force of AP-PMLSM is analyzed. The analytical expressions of the position and the width of auxiliary poles which can minimize the end effect detent force of AP-PMLSM are derived. Then, the finite element model(FEM) of AP-PMLSM with 14-pole/12-slot is built. The simulation results from FEM agree well with the analytical expressions. It indicates the correctness of theoretical analysis.

关 键 词：永磁同步直线电机 辅助极 定位力 端部效应 

分 类 号：TM359.4[电气工程—电机]