diplomsko delo
Miha Zorman (Author), Gorazd Karer (Mentor)

Abstract

Cilj naloge je narediti nadzorni sistem, ki vključuje uporabo programirljivega logičnega krmilnika (PLK) (ang. programmable logic controller - PLC) in frekvenčnega pretvornika za krmiljenje asinhronskega motorja. Nadzorni sistem bo omogočal spremljanje stanja naprav v sistemu, spreminjanje parametrov delovanja motorjev, preklapljanje med ročnim in avtomatskim načinom delovanja in pa odkrivanje morebitnih napak v sistemu. V diplomski nalogi so v prvem delu opisane vse komponente sistema, ki je narejen na demonstracijskem panelu. Predstavljeno je, kako se vzpostavi povezava med PLK-jem znamke Siemens in frekvenčnim pretvornikom proizvajalca ABB. Povezava je vzpostavljena preko protokolov PROFIBUS in PROFINET, ki sta med najpogosteje uporabljenimi komunikacijskimi protokoli v industriji. V nadaljevanju je opisan primer uporabe frekvenčnega pretvornika in upravljanje sistema preko nazornega sistema Siemens SIMATIC WinCC V7. Nadzorni sistem operaterju omogoča komunikacijo s strojem in s tem nadzor nad procesom. Poleg tega pa tudi hrani in obdeluje podatke in sporoča sistemske napake. V diplomski nalogi je prikazno, kako se uvozi spremenljivke s krmilnika v nadzorni sistem Siemens SIMATIC WinCC V7, kako se barva ikone glede na vrednosti spremenljivk sistema (stanje sistema), odpiranje oken za upravljanje naprave in prikaz alarmov. Menim da je naloga uspela, saj sistem izpolnjuje zastavljene zahteve delovanja, ki si bile navedene v poglavju 2.1.V šestem poglavju lahko vidimo da se ikone pravilno barvajo glede na stanje sistema in da nas v primeru napake nazorni sistem obvesti. Naloga je primerna za učenje začetnikov v avtomatiki, saj opisuje izdelavo nadzornega sistema, ki vključuje uporabo PLK-ja in frekvenčnega pretvornika za krmiljenje asinhronskega motorja.

Keywords

programirljivi logični krmilniki;asinhronski motorji;nadzorni sistemi;TIA Portal;Siemens SIMATIC WinCC V7;visokošolski strokovni študij;Aplikativna elektrotehnika;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FE - Faculty of Electrical Engineering
Publisher: [M. Zorman]
UDC: 681.5:621.313.33(043.2)
COBISS: 120307971 Link will open in a new window
Views: 34
Downloads: 16
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Other data

Secondary language: English
Secondary title: SCADA system and induction-motor control
Secondary abstract: The aim of the task is to make a control system that includes the use of a programmable logic controller (PLC) and a frequency converter to control an induction motor. The control system will enable monitoring of the condition of devices in the system, changing the parameters of engine operation, switching between manual and automatic mode and detecting possible faults in the system. In the first part, the diploma thesis describes all the components of the system made on the demonstration panel. It is presented how to establish a connection between a Siemens PLC and an ABB frequency converter. The connection is established via the PROFIBUS and PROFINET protocols, which are among the most commonly used communication protocols in the industry. The following is an example of using a frequency converter and operating the system via the Siemens SIMATIC WinCC V7 demonstration system. The control system allows the operator to communicate with the machine and thus control the process. In addition, it also stores and processes data and reports system errors. The diploma thesis shows how to import variables from the controller into the Siemens SIMATIC WinCC V7 control system, how to color the icon according to the values of system variables (system status), open device management windows and display alarms. I think that the task was successful, because the system meets the set operating requirements, which were stated in section 2.1. In the sixth chapter we can see that the icons are colored correctly according to the state of the system and that in case of error the visual system informs us. The task is suitable for beginners to learn in automation, as it describes the construction of a control system that includes the use of a PLC and a frequency converter to control an induction motor.
Secondary keywords: programmable logic controller;asynchronous motor;SCADA;Program tool TIA Portal;Siemens SIMATIC WinCC V7;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000315
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za elektrotehniko
Pages: 68 str.
ID: 16372745