A study on the controller design for EMS system using disturbance observer

被引：0

作者：

Dept. of Electrical Engineering, Soongsil Univerity, Korea, Republic of ^{[1
]}

机构：

[1] Dept. of Electrical Engineering, Soongsil Univerity

来源：

Jo, N.-H. (professor.jo@gmail.com) | 1600年 / Korean Institute of Electrical Engineers卷 / 62期

关键词：

Disturbance attenuation; Disturbance observer; EMS system; Mass uncertainty; Q filter;

D O I：

10.5370/KIEE.2013.62.9.1264

中图分类号：

学科分类号：

摘要：

In this paper, we study a disturbance observer (DOB) based controller for an EMS (Electro-Magnetic Suspension) system in presence of mass uncertainty and input disturbance. The DOB based controller is employed in order to compensate the modeling uncertainty and attenuate disturbance signals. For the design of DOB based controller, the Jacobain linearization of nonlinear system model equation is used. Computer simulation is carried out for nonlinear model in order to compare the performance of the proposed DOB controller with that of the conventional PID controller. The simulation results show that the substantial improvement in the performance can be achieved by the proposed DOB controller.

引用

页码：1264 / 1269

页数：5

共 9 条

[1]

Cho D., Kato Y., Spilman D., Sliding mode and classical control magnetic levitations systems, IEEE Control Systems Magazine, 13, pp. 42-48, (1993)

[2]

Hajjaji A.E., Ouladsine M., Modeling and nonlinear control of magnetic levitation systems, IEEE Transactions on Industrial Electronics, 48, 4, pp. 831-838, (2001)

[3]

Yang Z.J., Fukushima Y., Kanae S., Wada K., Adaptive robust output-feedback control of a magnetic levitation system by k-filter approach, IEEE Trans. Industrial, 55, 1, pp. 390-399, (2008)

[4]

Park Y., Nam M.R., Seo I.H., Lee S.H., Lim J.T., Tahk M.-J., Least squares based PID control of an electromagnetic suspension system, KSAS Int. Journal, 4, 2, pp. 69-78, (2003)

[5]

Shin B., Kim W., Kim D., Paik J., Kang H., On commercialization business of city type magnetic levitation train, Journal of Railway, 14, 2, pp. 26-32, (2011)

[6]

Maglev User Manuals, (2008)

[7]

Choi Y., Yang K., Chung W.K., Kim H.R., Suh I.H., On the robustness and performance of disturbance observers for second-order systems, IEEE Trans. Automat. Contr., 48, pp. 315-320, (2003)

[8]

White M.T., Tomizuka M., Smith C., Improved track following in magnetic disk drives using a disturbance observer, IEEE/ASME Trans. Mechatronics, 2, pp. 63-76, (1997)

[9]

Shim H., Nam H.J., An almost necessary and sufficient conditions for robust stability of closed-loop systems with disturbance observer, Automatica, 45, 1, pp. 296-299, (2009)

← 1 →