Optimal design of auxiliary-teeth to solve circulation current reduction of permanent magnet linear synchronous motor

作     者：JANG Ki-bong KIM Jee-hyun AN Ho-jin KIM Gyu-tak 

作者机构：School of MechatronicsChangwon National University 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2011年第18卷第3期

页      面：690-696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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Second Stage of Brain Korea 21 Projects and Changwon National University in 2009-2010 

主　　题：permanent magnet linear synchronous motor auxiliary-teeth circulation current end effect thrust reduction 

摘      要：A discontinuity of magnetic circuits according to the end effect is generated in the permanent magnet linear synchronous motor （PMLSM）. Due to the unbalanced back electro-motive force （EMF） and impedance produced, unbalanced current is generated. The cireulatin8 current, which is caused by a decrease in the thrust, is generated by the unbalanced current. The optimal design of auxiliary-teeth at the end of the mover was carried out to solve the unbalance of phase by using design of experiment （DOE）, and compared with the basic model through finite element analysis （FEA）. As a result, the auxiliary-teeth model compensates for the decrease of thrust caused by the unbalanced phase. Also, this model is proven to reduce the detent force by the vibration and noise of the PMLSM and copper loss caused by the circulating current.