Design and analysis of EI core structured transverse flux linear reluctance actuator

In this study, an EI core linear actuator is proposed for horizontal movement systems. It is a transverse flux linear switched reluctance motor designed with an EI core structure geometrically. The actuator is configured into three phases and at a 6/4 pole ratio, and it has a stationary active stator along with a sliding passive translator. The stator consists of E cores and the translator consists of I cores. The actuator has a yokeless design because the stator and translator have no back iron. The E and I cores are separated from each other to provide a fault-tolerant design and decrease the weight. The proposed model is analyzed by 3D finite element method. Phase inductance, flux linkage, and axial forces are examined by magnetostatic finite element analysis and verified by analytical approximations and experimental results. Under DC 8 A phase excitation, propulsion force is 72.57 N and corresponding power consumption is 115.5 W. This has advantages for horizontal movement systems.

Design and analysis of EI core structured transverse flux linear reluctance actuator

In this study, an EI core linear actuator is proposed for horizontal movement systems. It is a transverse flux linear switched reluctance motor designed with an EI core structure geometrically. The actuator is configured into three phases and at a 6/4 pole ratio, and it has a stationary active stator along with a sliding passive translator. The stator consists of E cores and the translator consists of I cores. The actuator has a yokeless design because the stator and translator have no back iron. The E and I cores are separated from each other to provide a fault-tolerant design and decrease the weight. The proposed model is analyzed by 3D finite element method. Phase inductance, flux linkage, and axial forces are examined by magnetostatic finite element analysis and verified by analytical approximations and experimental results. Under DC 8 A phase excitation, propulsion force is 72.57 N and corresponding power consumption is 115.5 W. This has advantages for horizontal movement systems.

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  • 1] Amoros JG, Andrada P. Sensitivity analysis of geometrical parameters on a double-sided linear switched reluctance motor. IEEE T Ind Electron 2010; 57: 311–319.
  • [2] Iancu V, Popa DC, Szabo L. Fault tolerant linear transvere flux reluctance machines. J Comput Sci Contr Syst 2009; 2: 93–96.
  • [3] Baoming G, Almeida AT, Ferreira FJTE. Design of transverse flux linear switched reluctance motor. IEEE T Magn 2009; 45: 113–119.
  • [4] Daldaban F, Ustkoyuncu N. A new linear switched reluctance motor with maglev effect. In: International Conference ¨ on Electrical and Electronics Engineering; November 2008; Bursa, Turkey. pp. 420–422.
  • [5] Chang J, Kang DH, Kang A, Larisa S. Transverse flux reluctance linear motor’s analytical model based on finiteelement method analysis results. IEEE T Magn 2007; 43: 1201–1204.
  • [6] Fenercio˘glu A. Design and magnetically analysis of circular flux linear actuator. Elektronika Ir Elektrotechnica 2010; 101: 21–26.
  • [7] Fenercioglu A, Dursun M. Design and magnetic analysis of a double sided linear switched reluctance motor. Przeglad Elektrotechniczny 2010; 86: 78–82.
  • [8] Dursun M, Fenercioglu A. Velocity control of linear switched reluctance motor for prototype elevator load. Przeglad Elektrotechniczny 2011; 87: 209–214.
  • [9] Lenin NC, Arumugam R. A novel linear switched reluctance motor: investigation and experimental verification. Songklanakarin Journal of Science and Technology 2011; 33: 69–78.
  • [10] Lim HS, Krishnan R. Ropeless elevator with linear switched reluctance motor drive actuation systems. IEEE T Ind Electron 2007; 54: 2209–2218.
  • [11] Krishnan R. Switched Reluctance Motor Drives. Washington, DC, USA: CRC Press; 2004.
  • [12] Gan WC, Cheung NCA. A low-cost linear switched reluctance motor with integrated position sensor for generalpurpose three-phase motor controller. In: 27th Annual Conference of the IEEE Industrial Electronics Society; December 2001; Denver, CO, USA. pp. 468–473.
  • [13] Garcia Amoros J, Andrada Gacson P. Study of end effects on the performance of the linear switched reluctance motor. In: 11th Spanish-Portuguese Conference on Electrical Engineering; July 2009; Zaragoza, Spain. pp. 1–6.
  • [14] Torkaman H, Afjei A. Comprehensive study of 2-D and 3-D finite element analysis of a switched reluctance motor. Journal of Applied Sciences 2008; 8: 2758–2763.
  • [15] Kolomeitsev L, Kraynov D, Pakhomin S, Rednov F, Kallenbach, E, Kireev V, Schneider T, B¨ocker J. Linear switched reluctance motor as a high efficiency propulsion system for railway vehicles. In: SPEEDAM International Symposium on Power Electronics, Electrical Drives, Automation and Motion; June 2008; Ischia, Italy. pp. 155–160.
  • [16] Jang SM, Park JH, Choi JY, Cho HW. Analytical prediction and measurements for inductance profile of linear switched reluctance motor. IEEE T Magn 2006; 42: 3428–3430.
  • [17] Gao HF, Salmasi R, Ehsani M. Inductance model-based sensorless control of the switched reluctance motor drive at low speed. IEEE T Power Electr 2004; 19: 1568–1573.
  • [18] Gan WC, Cheung NC, Qiu L. Position control of linear switched reluctance motors for high-precision applications. IEEE T Ind Appl 2003; 39: 1350–1362.