Disturbance Rejection with a Highly Oscillating Second-Order Process, Part II: PD-PI Controller

Galal Ali Hassaan ()
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Galal Ali Hassaan: Emeritus Professor, Department of Mechanical Design & Production, Faculty of Engineering, Cairo University, Giza, Egypt

Scientific Review, 2015, vol. 1, issue 6, 102-107

Abstract: This research paper aims at investigating disturbance rejection associated with a highly oscillating second-order process. The PD-PI controller having three parameters are tuned to provide efficient rejection of a step input disturbance input. Controller tuning based on using MATLAB control and optimization toolboxes. Using the suggested tuning technique, it is possible to reduce the maximum time response of the closed loop control system to as low as 0.0095 and obtain time response to the disturbance input having zero settling time. The effect of the proportional gain of the PD-PI controller on the control system dynamics is investigated for a gain ≤ 100. The performance of the control system during disturbance rejection using the PD-PI controller is compared with that using a second-order compensator. The PD-PI controller is superior in dealing with the disturbance rejection associated with the highly oscillating second-order process.

Keywords: Disturbance rejection; Highly oscillating second-order process; PD-PI controller; Controller tuning; Control system performance. (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:arp:srarsr:2015:p:102-107

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