Advanced SearchSearch Tips
Robust Zero Power Levitation Control of Quadruple Hybrid EMS System
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Robust Zero Power Levitation Control of Quadruple Hybrid EMS System
Cho, Su-Yeon; Kim, Won-Ho; Jang, Ik-Sang; Kang, Dong-Woo; Lee, Ju;
  PDF(new window)
This paper presents the improved zero power levitation control algorithm for a quadruple hybrid EMS (Electromagnetic Suspension) system. Quadruple hybrid EMS system is a united form of four hybrid EMS systems one on each corner coupled with a metal plate. Technical issue in controlling a quadruple hybrid EMS system is the permanent magnet's equilibrium point deviation caused by design tolerance which eventually leads to a limited zero power levitation control that only satisfies the zero power levitation in one or two hybrid EMS system among the four hybrid EMS system. In order to satisfy a complete zero power levitation control of the quadruple hybrid EMS system, the proposed method presented in this paper adds a compensating algorithm which adjusts the gap reference of each individual axe. Later, this paper proves the stability and effectiveness of the proposed control algorithm via experiment and disturbance test.
Magnetic levitation;Maglev;Hybrid EMS;Zero power;Control;
 Cited by
Han-Wook Cho, Chang-Hyun Kim, Hyung-Suk Han, and Jong-Min Lee, "Levitation and Thrust Forces Analysis of Hybrid-Excited Linear Synchronous Motor for Magnetically Levitated Vehicle", Journal of Electrical Engineering & Technology, vol.7, no.4, p.564-569, 2012 crossref(new window)

Youn Hyun Kim, "Zero Power control with Load Observer in Controlled-PM Levitation", IEEE Trans-actions on magnetics, vol.37, no.4, p.2851, 2001 crossref(new window)

Tongjuan Liu, "Expert PID Control Study of Hybrid Maglev Systems", Proceedings ofthe 2009 IEEE International Conference on Mechatronics and Automation , August 9 - 12, Changchun, China

M. Morishita et al., "A new Maglev system for magnetically levitated carrier system," IEEE Transactions on Vehicular Tech, vol. 38, no. 4, pp. 230-236, 1989. crossref(new window)

Toshiyuki Ueno, "Zero-Power Magnetic Levitation Using Composite of Magnetostrictive / Piezoelectric Materials", IEEE Transactions on magnetics, vol.43, no.8, August 2007.

Tish C. Wang, Yeou-kuang Tzeng. "A new electromagnetic levitation system for rapid transit and high speed transportation". IEEE Transactions on Magnetics, 1994, 30(6) : 4734-4736. crossref(new window)

Xia Yang, "Study on Suspension rigidity Control of Electromagnetic Suspension System Based on NNPI D", Proceedings of the 7th World Congress on Intelligent Control and Automation, June 25-27, 2008, Chongqing, China.

Zi-Jiang Yang, "Robust Nonlinear Control of a Voltage-controlled Magnetic Levitation System with Disturbance Observer", IEEE Conference on Control Application, TuB04.1, 2007.

A. J. Joo and J. H. Seo, "Design and analysis of the nonlinear feedback linearizing control for an electromagnetic suspension system", IEEE Transactions on Control Systems Technology, Vol. 5, 135/144, 1997.