Papers by Yavar Azarakhsh
Complexity, Sep 6, 2021
In industrial steam systems, the process requires a specific pressure, and the maximum permissibl... more In industrial steam systems, the process requires a specific pressure, and the maximum permissible operating pressure is different. If the inlet steam pressure to the steam consuming equipment exceeds the operating pressure, it may cause hazards. erefore, the more precise control of the boiler pressure is important. Since we are dealing with a nonlinear, time-varying, and multivariable system, the control method must be designed to handle this system well. Most of the methods proposed so far are either not physically feasible or the system has considered very simple. erefore, in this paper, while modeling the boiler and its pressure relations more precisely, we will introduce a recurrent type-2 fuzzy RBFN-based model reference adaptive control system with various uncertainties so that the uncertainty and inaccuracy of the model can be compensated. e experimental results prove the efficiency of the proposed method in boiler control.
International journal of applied pattern recognition, 2021
International Journal of Applied Pattern Recognition
Automatica, 1995
A multivariable model reference adaptive control algorithm is presented for the case when the hig... more A multivariable model reference adaptive control algorithm is presented for the case when the high-frequency gain matrix is unknown. Only an upper bound on the norm of the matrix needs to be known a priori. A transformation of the parameters, with a sort of hysteresis, is used to guarantee that a controller matrix, which is normally the inverse of the
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Papers by Yavar Azarakhsh