FGO-Tuned 2-DOF PI controller for pressure regulation in centrifugal fans driven by induction motors using an experimentally validated model
ISA Transactions, vol.169, pp.436-446, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 169
- Publication Date: 2026
- Doi Number: 10.1016/j.isatra.2025.12.012
- Journal Name: ISA Transactions
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Compendex, EMBASE, INSPEC, MEDLINE, Engineering Source (EBSCO)
- Page Numbers: pp.436-446
- Keywords: 2-DOF PI controller, Centrifugal fan, Fungal growth optimizer, Pressure control
- Open Archive Collection: AVESIS Open Access Collection
- Bursa Uludag University Affiliated: Yes
Abstract
This study proposes a novel pressure control strategy for a centrifugal fan driven by an induction motor, using a two-degree-of-freedom (2-DOF) proportional-integral (PI) controller optimized via the fungal growth optimizer (FGO). Built upon a validated nonlinear model, the FGO algorithm tunes the controller parameters to minimize a cost function reflecting overshoot and tracking error. Comparative evaluations are performed against genetic algorithm (GA),L-SHADE, and the Newton-Raphson-based optimizer (NRBO), as well as classical methods such as Cohen-Coon and Rovira techniques. The FGO-based controller demonstrates superior dynamic response, robustness, and noise immunity. Statistical validation using the Wilcoxon signed-rank test confirms the performance improvements. These results highlight the effectiveness of FGO in real-world pressure regulation and establish a benchmark for modern industrial fan control systems.