Call For Paper Volume:4 Issue:8 Aug'2017 |

Discrete Time State-Space Modeling of A Wireless Control System With MATLAB

Publication Date : 21/08/2015



Author(s) :

Adnan ALDEMİR , Mustafa ALPBAZ.


Volume/Issue :
Volume 2
,
Issue 8
(08 - 2015)



Abstract :

This work has been carried out to demonstrate the performances of two different state space models of a process simulator that was used for the wireless control. Wireless input/output data obtained from the Cussons P3005 type process control simulator which three different temperatures (T2, T3 and T4) were selected as the controlled variables while the heater capacity was chosen as the manipulated variable. 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 state space models of the process simulator were developed with the aid of System Identification Toolbox of MATLAB using the data acquired from a unit step change between % 10-80 values on the heater capacity of the process simulator. The model orders used for the estimation of the model coefficients were determined with the aid MATLAB. The comparison between the experimental and two different state space model simulated temperatures of T2, T3 and T4 temperatures on the process simulator have revealed that the n4sid state space model can be used to represent the this wireless control system. Compared to the pem model investigated, the best step responses without any oscillations, fastest rise time and response time and higher calculated fit values obtained from n4sid model showed that it had the good performance.  Keywords—State-Space Modeling (SSM), System identification, MATLAB/Simulink, wireless measurement and control, discrete time 


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Discrete Time State-Space Modeling of A Wireless Control System With MATLAB

August 18, 2015