Publication
Fractional control of a heat diffusion system
| datacite.subject.fos | Engenharia e Tecnologia | |
| datacite.subject.sdg | 09:Indústria, Inovação e Infraestruturas | |
| dc.contributor.advisor | Jesus, Isabel Maria de Sousa de | |
| dc.contributor.author | SANTOS, TIAGO FILIPE RIBEIRO | |
| dc.date.accessioned | 2025-10-01T13:22:32Z | |
| dc.date.available | 2025-10-01T13:22:32Z | |
| dc.date.issued | 2025-07-16 | |
| dc.description.abstract | Thermal systems with long delay times and slow dynamic response are common in industrial processes, where precise temperature regulation is necessary to ensure e ciency. Traditional control strategies, speci cally Proportional Integral Derivative (PID) controllers, struggle with systems that demonstrate signi cant delays. This dissertation seeks to develop and implement a fractional-order controller for a thermal di usion system with time delay. In order to achieve this goal, a comparative study was carried out between the classical and fractional controllers, along with an analysis of the thermal di usion system in order to nd the fractional-order model that best represents its behaviour. The controllers were tested through simulations, testing both performance and regression metrics, as well as prediction techniques such as the Smith Predictor, anti-windup system and non-linearities. The results demonstrated that the fractional controller outperformed the classical ones, especially in the implemented system with a signi cant delay, as it showed better robustness and response to the actual system, which was further con- rmed after the frequency-domain studies, especially the Bode Diagrams. And, together with the Root Locus, it con rmed the system's stability. These results showed that the fractional-order controller with Smith Predictor and Anti-windup is a viable solution for thermal systems with high delay values. | eng |
| dc.identifier.tid | 204007160 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/30520 | |
| dc.language.iso | eng | |
| dc.rights.uri | N/A | |
| dc.subject | Fractional controller | |
| dc.subject | Fractional caculus | |
| dc.subject | PID controller | |
| dc.subject | MATLAB | |
| dc.subject | FOMCON toolbox | |
| dc.subject | Heat diffusion systems | |
| dc.title | Fractional control of a heat diffusion system | eng |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| thesis.degree.name | Mestrado em Engenharia Electrotécnica e de Computadores |