Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2009.1201.1214BarzaminiR.YazdizadehA.R.TalebiH.A.EliasiH.7200997In this study, an adaptive controller is presented that
addresses the coupling effects between two groups of electromagnetic trains.
The main application of DEM (Double Electro-Magnet) is rapid rail transportation.
Since the number of passengers are stochastic, the mass of the train will
be variable too. On the other hand, due to the variation of the DEM parameters
(such as coil inductance) in a real environment, the system is to be controlled
in a proper manner. The proposed method in this study overcomes all of
these problems. The module, based on some reasonable assumptions of nonlinear
mathematical model, is modeled as a double-electromagnet system. The proposed
algorithm has a satisfying performance in tracking in presence of unknown
changes in the mass. The advantage of the proposed algorithm in comparison
to non-linear controllers is that knowing the mass changes is not necessary.
It is also important to make sure that a control system is robust against
measurement noises, because all sensors collect noise from the environment.
Due to the presence of input and output perturbation, the new proposed
algorithm shows satisfying performance. The results show that the proposed
method is less sensitive to perturbation in the input.]]>Bonivento C., L. Gentili and L. Marconi,2005Chen, M.Y., M.J. Wang and L.C. Fu,2003De-Sheng L., L. Jie and Z. Kun,2006De-Queiroz M.S. and S. Pradhananga,2007Fialho, I. and G.J. Balas,2002Huang, S.J. and W.C. Lin,2003Khalil, H.K.,20025. Li, Y. and W. Chang,1999Lin, F.J., H.J. Shieh, L.T. Teng and P.H. Shieh,2005Liu, D.S., J. Li and K. Zhang,2005Namerikawa, M.T. and M. Fujita,2001Peterson, K.S., J.W. Grizzle and A.G. Stefanopoulou,2006Wai, R.J. and J.D. Lee,2008Slotine, J.J.E. and W. Li,1991Wai, R.J. and J.D. Lee,2008Yang, Z.J., K. Kunitoshi, S. Kanae and K. Wada,2008Aliasghary, M., M. Teshnehlab, A. Jalilvand, M. Aliyari Shoorehdeli and M.A. Nekoui,2008Hassanzadeh, I., S. Mobayen and G. Sedaghat,2008