Magnetic field and performance analysis of a tubular permanent magnet linear synchronous motor applied in elevator door system

作     者：Xiao LIU Yun-yue YE Zhuo ZHENG Qin-fen LU 

作者机构：School of Electrical Engineering Zhejiang University Hangzhou 310027 China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2008年第9卷第4期

页      面：572-576页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：Project (No. 50607016) supported by the National Natural ScienceFoundation of China 

主　　题：Elevator door system Tubular permanent magnet linear synchronous motor (TPMLSM) Finite element analysis(FEA) 

摘      要：A novel elevator door driven by tubular permanent magnet linear synchronous motor (TPMLSM) is presented. This TPMLSM applies axial magnet array topology of the secondary rod, air-cored armature windings and slotless structure of the forcer to improve the stability of the thrust. The influence of two major dimensions, the pitch and radius of the permanent magnet (PM), on magnetic field was studied and the best values were given by the finite element analysis (FEA). The magnetic field, back EMF and thrust of the motor were analyzed and the PM size was optimized to reduce the harmonic components of the magnetic field and improve the performance of the motor. Predicted results are validated by the experiment. It is shown that the performance of the motor and the novel elevator door system is satisfying.