Določanje učinkovitosti regulacije pretoka tekočin in optimiranje nastavitev konstant PID regulatorja : diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje

Mezek, Jure

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Title:	Določanje učinkovitosti regulacije pretoka tekočin in optimiranje nastavitev konstant PID regulatorja : diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje
Authors:	ID Mezek, Jure (Author) ID Nemet, Andreja (Mentor) More about this mentor... ID Bogataj, Miloš (Comentor)
Files:	UN_Mezek_Jure_2022.pdf (2,55 MB) MD5: 72A2D23D4A5C2A9DDF12F320B6D33DCF PID: 20.500.12556/dkum/f96fffa3-d63e-40aa-b7d3-4acc3f762cd3
Language:	Slovenian
Work type:	Bachelor thesis/paper
Typology:	2.11 - Undergraduate Thesis
Organization:	FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:	V diplomskem delu smo preučevali pretočni sistem z povratno-zančno regulacijo na demonstracijski napravi GUNT RT-624. Na začetku eksperimentalnega dela smo preverili linearnost ventila glede na vhodni signal. Z določitvijo linearnega območja delovanja smo določili interval, na katerem so meritve ustrezne in relevantne. Z uvedbo stopničaste spremembe smo karakterizirali sistem na obratovalnem območju avtomatskega ventila. Sistem smo regulirali z P, PI in PID regulacijo, katerih nastavitve smo določili grafično z Cohen Coonovo metodo. Nadaljnje eksperimentalno delo smo opravili z uporabo programa Matlab. Pripravili smo simulacijski modul eksperimentalne naprave in testirali različne tipe regulacije kot tudi različne nastavitve regulacijskih konstant, ki smo jih pridobili iz empirično zapisanih metod. Opazovali smo odziv sistema pri uvajanju stopničastih sprememb in motnje ter zapisali opažanja in ugotovitve o ustreznosti metod za regulacijo obravnavanega sistema. Cilj regulacije je bil pridobiti hiter ter natančen odziv z minimalnim preletom, predvsem pa vzpostavitev stabilnega stanja sistema po dosegu referenčne vrednosti. V sistem smo uvajali motnjo, ki jo je modul odpravil s povratnozančno regulacijo. Rezultati nakazujejo, da je za obravnavani sistem najustreznejši proporcionalno-integralni regulator, saj zagotavlja zadovoljive, točne rezultate in ob ustreznih nastavitvah konstant ne povzroča oscilacije signala. Idealnemu odzivu sistema smo se poizkušali približati z optimizacijo nastavitev z uporabo orodja Simulink. Pridobili smo parametre, ki so bili za obravnavani sistem najustreznejši.
Keywords:	regulacija pretoka, povratno-zančna regulacija, PI regulacija, PID regulacija, optimizacija nastavitev pretočnega sistema
Place of publishing:	Maribor
Place of performance:	Maribor
Publisher:	[J. Mezek]
Year of publishing:	2022
Number of pages:	1 spletni vir (1 datoteka PDF (IX, 30 f.))
PID:	20.500.12556/DKUM-81657
UDC:	681.533.38:66.012(043.2)
COBISS.SI-ID:	108941315
Publication date in DKUM:	18.05.2022
Views:	1036
Downloads:	86
Metadata:
Categories:	KTFMB - FKKT
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Licences

License:	CC BY 4.0, Creative Commons Attribution 4.0 International

Link:	http://creativecommons.org/licenses/by/4.0/
Description:	This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:	06.05.2022

Secondary language

Language:	English
Title:	Determination of fluid flow control efficiency and optimization of PID controller constants
Abstract:	In the thesis, we studied a flow system with feedback-loop control on a GUNT RT-624 demonstrator. At the beginning of the experimental part, we checked the linearity of the valve with respect to the input signal. By defining the linear operating range, we determined the interval in which the measurements are relevant and control efficient. By introducing a step change, we characterised the system over the linear operating range of the automatic valve. The system was controlled by proportional (P), proportional-integral (PI) and proportional-integral differential (PID) control, the settings of which were determined graphically by the Cohen Coon method. Further experimental work was carried out using Matlab. We prepared a simulation module of the experimental setup and tested different types of control as well as different settings of the control constants obtained from empirically developed methods. We observed the response of the system when step changes and disturbance were introduced, and recorded our observations and conclusions on the suitability of the methods to regulate the system under consideration. The objective of the control was to obtain a fast and accurate response with minimum overshoot and, above all, to establish a steady state of the system after reaching a reference value. A disturbance was introduced into the system, which was eliminated by the module by means of feedback control. The ideal system response was attempted by optimising the settings using Simulink. We obtained the parameters that were most appropriate for the system under consideration. The results indicate that the PI controller is the most suitable for the system under consideration, as it provides satisfactory, accurate results and, with appropriate settings of the constants, does not cause signal oscillations.
Keywords:	flow control, feedback control, PI control, PID control, optimisation of flow system settings

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