Author : MOHAMED ABDELBAR SHAMSELDIN ALY
CoAuthors : Mohamed Sallam, A. M. Bassiuny, A. M. Abdel Ghany
Source : International Journal of Power Electronics and Drive System (IJPEDS)
Date of Publication : 01/2019
Abstract :
This paper presents a novel self-tuning fractional order PID (FOPID) control
based on optimal Model Reference Adaptive Control (MRAC). The proposed
control technique has subjected to a third order system case study (power
system load frequency control). The model reference describes the
requirements of designer. It can be first or second order system. The
parameters of MRAC have obtained using the harmony search (HS)
optimization technique to achieve the optimal performance. Sometimes, the
tuning of the five parameters of FOPID control online at same moment
consumes more calculation time and more processing. So, this study
proposes three methods for self-tuning FOPID control. The first method has
been implemented to tune the two integral and derivative parameters only
and the rest of parameters are fixed. The second method has been designed to
adjust the proportional, integral derivative parameters while the other
fractional parameters are constant. The last method has developed to adjust
the five parameters of FOPID control simultaneously. The simulation results
illustrate that the third method of self-tuning FOPID control can
accommodate the sudden disturbance compared to other techniques. Also, it
can absorb the system uncertainty better than the other control techniques.
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