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Black-Box Modeling of A Process Simulator Using Wireless Temperature Measurements

Publication Date : 30/07/2015

Author(s) :

Adnan ALDEMİR , Mustafa ALPBAZ.

Volume/Issue :
Volume 2
Issue 7
(07 - 2015)

Abstract :

Abstract—The development of two black-box (ARX and ARMAX) models for a process simulator has been carried out in this work. Wireless input/output data obtained from The Cussons P3005 type process control simulator which temperature measurements can be made at four different points which are first tank (T1), heater output (T2), second tank input (T3) and second tank output (T4) temperatures. Wireless temperature experiments were achieved by using MATLAB/Simulink program and wireless data transfer during the experiments were carried out with radio waves at a frequency of 2.4 GHz. The wireless data used for the models development were generated using a unit step change between % 10-70 values on the heater capacity of the process simulator. The model orders used for the estimation of the model polynomial coefficients were determined by optimizing the Rissanen’s Minimum Description Length with the aid MATLAB. The comparison between the experimental, ARX and ARMAX simulated temperatures of three different points on the process simulator have revealed that the ARMAX models can be used to represent the process succesfully. Furthermore, ARMAX models were discovered to be better in performance because of faster than ARX models in getting to the steady-state and without any oscillations when a step input was applied to both models. Keywords—Black-Box modeling, ARX, ARMAX, Rissanen’s Minimum Description Length, MATLAB/Simulink, wireless measurement and control

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Black-Box Modeling of A Process Simulator Using Wireless Temperature Measurements

July 29, 2015