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Control of a heat diffusion system using Fuzzy Logic

2025-07-16Master thesis Open access
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datacite.subject.fosEngenharia e Tecnologia
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.advisorJesus, Isabel Maria de Sousa de
dc.contributor.authorMENDES, RUI PEDRO SILVA
dc.date.accessioned2025-10-01T13:22:52Z
dc.date.available2025-10-01T13:22:52Z
dc.date.issued2025-07-16
dc.description.abstractHeat di usion systems are typically controlled by Proportional Integral Derivative (PID) controllers but other approaches, such as Fuzzy Logic Controller (FLC), can o er better results. This technique transforms qualitative and imprecise information (expressed linguistically), into quantitative data which allows a more precise and adaptive control. In this thesis, it is proposed a Fuzzy Logic based control strategy for a heat di usion system, comparing its performance with traditional PID control. The methodology includes system modeling, design the fuzzy inference system, and simulation using MATLAB with additional tests using Anti-Windup compensation and Smith Predictor to improve transient response and time-delay handling. The nal validation introduces simulated environmental noise representing real-world disturbances, (e.g. sudden temperature changes from opening the door) to evaluate controller robustness. Results demonstrate that Fuzzy Logic improves response accuracy, disturbance rejection, and adaptability to varying operating conditions, highlighting its potential for thermal systems with complex dynamics.eng
dc.identifier.tid204007151
dc.identifier.urihttp://hdl.handle.net/10400.22/30521
dc.language.isoeng
dc.rights.uriN/A
dc.subjectHeat diffusion
dc.subjectFuzzy Logic
dc.subjectPID controllers
dc.subjectAnti-windup
dc.subjectSmith predictor
dc.subjectDisturbance
dc.titleControl of a heat diffusion system using Fuzzy Logiceng
dc.typemaster thesis
dspace.entity.typePublication
thesis.degree.nameMestrado em Engenharia Electrotécnica e de Computadores

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