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Dynamical Adaptive Integral Sliding Backstepping Control of Nonlinear Nontriangular Uncertain Systems

Author

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  • Mahmood Pervaiz
  • Qudrat Khan
  • Aamer Iqbal Bhatti
  • Shahzad Ahmed Malik

Abstract

We present a control strategy for nonlinear nontriangular uncertain systems. The proposed control method is a synergy between the dynamic adaptive backstepping (DAB) and integral sliding mode (ISM) and is referred to as DAB-ISMC. Our main objective is to find a recursive procedure to transform a nontriangular system into an implementable form that enables designing a control law which almost eliminates the reaching-phase. The proposed method further facilitates minimization of chattering which is believed to be a shortcoming of the sliding mode control. In this methodology, the ISM, as an integrated subsystem of DAB, is introduced at the final stage of backstepping. This strategy works very well to obtain a system that is robust against model imperfections, matching and unmatching uncertainties. The DAB-ISMC method is applied on a continuous stirred tank reactor (CSTR) and simulation results obtained on Matlab are found to be very promising.

Suggested Citation

  • Mahmood Pervaiz & Qudrat Khan & Aamer Iqbal Bhatti & Shahzad Ahmed Malik, 2014. "Dynamical Adaptive Integral Sliding Backstepping Control of Nonlinear Nontriangular Uncertain Systems," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-14, October.
    • Handle: RePEc:hin:jnlmpe:492824
    DOI: 10.1155/2014/492824
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