Control and Analysis of Pressure Variable in the UCP Process Control

N. A. Abdullah, A. Che Soh, R. Z. Abd Rahmanand S.B. Mohd Noor

ABSTRACT

Objective - This paper is proposing on the pressure process control approach in Universal Control Plant (UCP) system in order to obtain the desired signal response.

Methodology/Technique - The structure of UCP is introduced and single input single output (SISO) model of pressure is designed through system identification toolbox. To achieve the best controller, analyses of traditional PID and intelligent controllers were made. The PID gains were tuned alternately in order to get the best gain. Then, a comparison of solver methods between Adam Moulton (AM) and Backward Differential Formula (BDF) for fuzzy logic techniques was highlighted. To evaluate the performance of controller system, the transient response and steady state response were analysed including overshoot, undershoot, settling time and steady state error.Finally, the comparison on the best PID gain and fuzzy logic AM solver method was concluded.

Findings - The result has shown that fuzzy logic controller generated better performance compared to PID and steady state error improved more than 99.9%.

Novelty - After evaluating the performance of controller system and analyses; the transient response and steady state response including overshoot, undershoot, settling time and steady state error, it has been proven that fuzzy logic control is better than PID control.

Type of Paper: Empirical

Keywords: Fuzzy logic controller; PID controller; Pressure; System identification; Water level

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