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2012 (Vol. 4, Issue: 12)
Article Information:

Robust Sliding Mode Control of Electromagnetic Suspension System with Parameter Uncertainty

Abbas Shiri
Corresponding Author:  Abbas Shiri 

Key words:  Electromagnetic suspension system, robustness, sliding control, uncertainty, , ,
Vol. 4 , (12): 1677-1683
Submitted Accepted Published
November 17, 2011 December 16, 2011 June 15, 2012

Due to the nonlinearities inherent in electromagnetic suspension systems, it is difficult to design a linear controller which gives satisfactory performance and stability over a wide range of operating points. Besides, uncertainties in modeling of the system make it difficult to control the system robustly. The parameter uncertainties such as mass and electric resistance variations of the system and external disturbances affect the performance of the system. In this study a sliding mode controller is designed which is robust to bounded mass and electric resistance changes and reject the external disturbances. Besides the robustness of the mentioned controller, its simplicity makes it interesting to apply to Electromagnetic Suspension System. The system and controller are simulated in Matlab/simulink environment. The results of the simulations confirm the satisfactory performance and robustness of the designed controller against uncertainties and disturbances.
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  Cite this Reference:
Abbas Shiri, 2012. Robust Sliding Mode Control of Electromagnetic Suspension System with Parameter Uncertainty.  Research Journal of Applied Sciences, Engineering and Technology, 4(12): 1677-1683.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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