Analysis of the effect on applying halbach array to LPMM with three phase multi-layered structure

Linear permanent magnet machines (LPMMs) are widely used in the industrial field. In a previous research, authors have proposed a new LPMM with three phase multi-layered structure. This new motor could adjust the thrust characteristics by changing the number of layers. However, this motor needs improvement on thrust characteristics because of its low thrust density. Therefore, halbach array was applied to improve the thrust characteristics. Firstly, the optimum ratio of the vertical magnet and the horizontal magnet length was investigated. Next, the comparison of the previous model and the halbach model was conducted by stacking up the motor layers. From the analysis result, the thrust was increased by 2.5N at each number of layers.

[1]  Jinxue Xu,et al.  A Fuzzy Sliding Mode Control Based on Model Reference Adaptive Control for Permanent Magnet Synchronous Linear Motor , 2007, 2007 2nd IEEE Conference on Industrial Electronics and Applications.

[2]  Tomoyuki Shimono,et al.  Design and analysis of a linear permanent magnet machine with three phase multi-layered structure , 2015, IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society.

[3]  Jae Hyung Lee,et al.  Design of position controller of linear pulse motor using neural network , 1998, Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207).

[4]  Guohai Liu,et al.  Minimization of Cogging Force in a Novel Linear Permanent-Magnet Motor for Artificial Hearts , 2013, IEEE Transactions on Magnetics.

[5]  Jan Swevers,et al.  Friction Compensation of an $XY$ Feed Table Using Friction-Model-Based Feedforward and an Inverse-Model-Based Disturbance Observer , 2009, IEEE Transactions on Industrial Electronics.

[6]  Liyi Li,et al.  Design and analysis of ironless linear electromagnetic launcher with high thrust density for space platform , 2012, 2012 16th International Symposium on Electromagnetic Launch Technology.

[7]  Hiroshi Fujimoto,et al.  Simultaneous identification of linear parameters and nonlinear rolling friction for ball screw driven stage , 2011, IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society.

[8]  Hao Zheng,et al.  Precision contour control of XY table based on LuGre model friction compensation , 2011, 2011 2nd International Conference on Intelligent Control and Information Processing.

[9]  M. Jalili-Kharaajoo,et al.  Discrete-time sliding mode control of permanent magnet linear synchronous motor in high-performance motion with large parameter uncertainty , 2003, SICE 2003 Annual Conference (IEEE Cat. No.03TH8734).

[10]  Qinfen Lu,et al.  Design and model of new punching machine driven by linear induction motor , 2005, IEEE International Conference on Mechatronics, 2005. ICM '05..

[11]  K. Hameyer,et al.  New Linear Motor Concepts for Artificial Hearts , 2008, IEEE Transactions on Magnetics.

[13]  Guangyuan Zheng,et al.  Intelligent Control of the Linear Motor Direct Drive Feed System for CNC Machine Tools , 2008, 2008 International Conference on Computational Intelligence and Security.

[14]  Keum-Shik Hong,et al.  Control of linear motor machine tool feed drives for end milling: Robust MIMO approach , 1999 .