Razvoj simulatorja za regulacijo pretoka s povratno-zančno in vnaprejšnjo regulacijo

diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje

Eva Valant (Author), Andreja Nemet (Mentor), Miloš Bogataj (Co-mentor)

Abstract

Pretok je ena izmed pomembnejših obratovalnih veličin v vsakem industrijskem procesu, regulacija le-tega pa služi za preučevanje, načrtovanje in zagotavljanje optimalnega delovanja procesa. V diplomskem delu je prikazan celotni razvoj virtualnega dinamičnega sistema za regulacijo pretoka s povratno-zančno in vnaprejšnjo regulacijo. Namen diplomske naloge je z uporabo različnih računalniških pristopov razviti simulator za regulacijo pretoka, ki je aproksimacija realnega procesa ter na osnovi simulacij določiti najbolj učinkovito regulacijsko shemo in ustvariti virtualni dinamični model naprave, ki omogoča nadaljnji študij procesne sistemske tehnike. V sklopu eksperimentalnega dela smo razvili dinamični model naprave za regulacijo pretoka z uporabo programskega paketa MATLAB/Simulink. Vzpostavili smo vhodno-izhodni model naprave, preučevali vpliv spremembe parametrov prenosne funkcije vnaprejšnje regulacije od idealnih vrednosti na odziv sistema in sposobnost vzpostavitve stacionarnega stanja, ko v procesu pride do spremembe referenčne vrednosti ali na sistem vplivajo motnje iz okolice. Na osnovi niza simulacij smo zmodelirali obnašanje sistema do te mere, da smo pridobljeni model uporabili pri razvoju virtualnega regulatorja, ki uspešno kompenzira vpliv motnje, še preden ta vpliva na želeno vrednost. Primerjali smo odziv kombinirane povratno-zančne in vnaprejšnje regulacije in same povratno-zančne regulacije. Na osnovi analize rezultatov smo potrdili naša predvidevanja, da vnaprejšnja regulacija s kombinacijo povratno-zančne regulacije hitreje in uspešneje odpravlja motnje iz okolice kot povratno-zančna regulacija. Dokazali smo, kako pomembna je nastavitev in optimizacija regulacijskih parametrov za nelinearne dinamične sisteme ter da sistem deluje brezhibno, ko so izpolnjene teoretične zahteve in omejitve.

Keywords

regulacija pretoka;povratno-zančna regulacija;vnaprejšnja regulacija;modeliranje;virtualizacija procesa;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[E. Valant]
UDC:	621.646:681.533.38(043.2)
COBISS:	96981763
Views:	145
Downloads:	21
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Development of a flow control simulator with feedback and feedforward control scheme
Secondary abstract:	Flow is one of the most important operational variables in any industrial process. Its control is used to study, plan and ensure optimal operational performance of the process. This work presents the complete development of a virtual dynamic flow control system with feedback and feedforward control scheme. The objective of this work is to use various computer approaches to develop a flow control simulator that approximates the real process, determine the most efficient control scheme, and create a virtual dynamic model that allows further study of process systems techniques. As part of the experimental work, we developed a dynamic model of flow control device using MATLAB/ Simulink software packages. We created an input-output model, investigated the influence of parameter changes in the feedforward transfer function in terms of system response and its ability to establish a steady state when changes in reference values and disturbances occur in the process. Based on a series of simulations, we modeled the behavior of the system to the extent that the obtained model is used in the development of a virtual controller that successfully compensates for the effects of disturbances before they affect the value of the controlled variable. The response of the combined feedback-feedforward control was compared to the feedback control. Based on the analysis of the results, we confirmed our predictions that the combination of feedback-feedforward control scheme eliminates effects of disturbances faster and more successfully than feedback control scheme. We proved the importance of setting and optimizing the control parameters for nonlinear dynamic systems. The system works impeccably when theoretical requirements and constraints are met.
Secondary keywords:	flow control;feedback control;feedforward control;modeling;process virtualization;
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	1 spletni vir (1 datoteka PDF (IX, 31 f.))
ID:	14180915