Implementacija grafo-analitičke metode identifikacije procesa u Schneider PLC-u

undergraduate thesis

• Title (english): Implementation of graphoanalitic identification method on Schnieder PLC
• Author: Marin Bogdan
• Mentor: Stjepan Bogdan (mentor)
• Committee member: Stjepan Bogdan (predsjednik povjerenstva)
• Committee member: Tamara Petrović (član povjerenstva)
• Committee member: Tomislav Haus (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2016-09-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom radu obrađene su sve ponuđene eksperimentalne metode indetifikacije uz podrazumjenavnje dozvole stepa kao ispitnog signala na neoscilatornom procesu bez utjecaja šuma. Opisan je tehnički proces i radna okolina za obavljanje zadatka. Uz opisanu radnu okolinu, dogovorom, impelemntirana je metoda Strejc na PLC Schneider Electric koja dovoljno dobro aproksimira prijelaznu funkciju procesa s dvije različite vremenske konstante. Kako zahtjevi procesa i procesne okoline ne zahtjevaju veliku točnost, pogreška spomenute metode je zadovoljavajuća. Željeni rezultat bio je implementacija metode na dobivenu prijelaznu funkciju toplinskog senzora KTY81 i da se pogodno korisniku (operateru), na željeni poziv, prikaže rezultat. Identifikacijom se utvrđuje red prijenosne funkcije senzora i pri tome se dobivaju njegovi aproksimativni parametri. Krajni dobiveni rezultat u obliku grafa signala aproksimacijske prijelazne funkcije i dobivene prijelazne funkcije senzora sjeku se u odabranim točkama i potvrđuju teorijsku pogrešku metode. Za tehničke procese većeg rizika implementiraju se metode manjih pogrešaka.

Abstract (english)

The paper reviwes all offered methods for experimental identification based on step responses applied on stabile nonoscillatory systems. The technical process and working environment is described for the task. With agreement, implemented method was Strejc on PLC Schneider Electric. As the demands of the process and the process environment does not require great accuracy, error in mentioned metod is applicable. The desired result was the implementation of the method to a given transition function of thermal sensor KTY81 and that the aplcation is simple for te user (the operator). With identification is determined order of the transfer function from sensor and thereby all parametars for approximation are known. Last result was displayed as trend graph with two signals, one is experimental signal, and second is Strejc approximation signal. On result graph we can see points of intersections and known teoretical error. For technical process with higher risk, other methods with lower risk is beeing implemented.

• Keywords: PLC; tehnički proces; Schneider Electric; Strejcova metoda; KTY81; prijelazna funkcija; prijenosna funkcija
• Keywords (english): PLC; technical proces; Schneider Electric; Strejc method; KTY81; transfer function; step response
• Language: croatian
• URN:NBN: urn:nbn:hr:168:489584
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 07:56:44