Optimal Design of a Permanent Magnet Linear Synchronous Motor With Low Cogging Force

In this paper, a technique for reducing the cogging force in slotted permanent magnet linear synchronous motors (PMLSMs) is presented. A two-step minimization process that depends on the slotting and end effects is proposed. Taguchi's parameter method, coupled with 2-D and 3-D finite element analysis (FEA), is employed to minimize the cogging force.

[1]  C. G. Jeans,et al.  Methods of detent force reduction in linear synchronous motors , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[2]  Ju Lee,et al.  Various design techniques to reduce cogging torque in flux-reversal machines , 2005, 2005 International Conference on Electrical Machines and Systems.

[3]  A. Bahrami,et al.  Design of experiments using the Taguchi approach: Synthesis of ZnO nanoparticles , 2012 .

[4]  Jonathan Rigelsford,et al.  Linear Synchronous Motors: Transportation and Automation Systems , 2000 .

[5]  Ki-Chae Lim,et al.  Detent Force Minimization Techniques in Permanent Magnet Linear Synchronous Motor , 2002 .

[6]  Chang-Chou Hwang,et al.  Influence of pole and slot combinations on cogging torque in fractional slot PM motors , 2006 .

[7]  In-Soung Jung,et al.  Performance analysis of skewed PM linear synchronous motor according to various design parameters , 2001 .

[8]  T. S. Low,et al.  The robust design approach for reducing cogging torque in permanent magnet motors [for CD-ROM spindles] , 1998 .

[9]  M. Inoue,et al.  An approach to a suitable stator length for minimizing the detent force of permanent magnet linear synchronous motors , 2000 .

[10]  Cheng-Tsung Liu,et al.  Optimal Design of an SPM Motor Using Genetic Algorithms and Taguchi Method , 2008, IEEE Transactions on Magnetics.

[11]  Yong-Jae Kim,et al.  Cogging Force Verification by Deforming the Shape of the Outlet Edge at the Armature of a Stationary Discontinuous Armature PM-LSM , 2007, IEEE Transactions on Magnetics.

[12]  T. S. Low,et al.  The Robust Design Approach For Reducing Cogging Torque In Permanent Magnet Motors , 1998, 7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275).

[13]  Samuel Chevailler Thèse comparative study and selection criteria of linear motors , 2006 .

[14]  Yun-Hyun Cho,et al.  Investigation of Auxiliary Poles Design Criteria on Reduction of End Effect of Detent Force for PMLSM , 2009, IEEE Transactions on Magnetics.