This article presents a fuzzy fractional-order PID (FFOPID) controller scheme for a pneumatic pressure regulating system. The\nindustrial pneumatic pressure systems are having strong dynamic and nonlinearity characteristics; further, these systems come\nacross frequent load variations and external disturbances. Hence, for the smooth and trouble-free operation of the industrial\npressure system, an effective control mechanism could be adopted. The objective of this work is to design an intelligent\nfuzzy-based fractional-order PID control scheme to ensure a robust performance with respect to load variation and external\ndisturbances. A novel model of a pilot pressure regulating system is developed to validate the effectiveness of the proposed\ncontrol scheme. Simulation studies are carried out in a delayed nonlinear pressure regulating system under different operating\nconditions using fractional-order PID (FOPID) controller with fuzzy online gain tuning mechanism. The results demonstrate\nthe usefulness of the proposed strategy and confirm the performance improvement for the pneumatic pressure system. To\nhighlight the advantages of the proposed scheme a comparative study with conventional PID and FOPID control schemes is\nmade.
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