Digitaalelektroonika labori arendus
Laen...
Kuupäev
2017
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Magistritöö eesmärgiks oli dokumenteerida Eesti Maaülikooli Tehnikainstituudi
digitaalelektroonika labori toimimine ning selle tööd täiendada. Uurimustöö aktuaalsus
seisneb taastuvenergeetika valdkonna arengul ning vajadusel energia tootmise ja juhtimise
paremaks mõistmiseks. Magistritöö teoreetilises osas tutvutakse taastuvenergeetikaga
ning samuti süsteemide automatiseerimisega üldisemalt. Praktilises osas selgitati süsteemi
ajamite tööpõhimõtted ning kontrolliti üle labori toimimise hetkeolukord, mille käigus
toodi välja labori toimimise kitsaskohad. Vaadati üle mõõtetulemuste esitamise kvaliteet
juhtimiskilbi ekraanil, millel avastati suuri puudujääke. Katsetati edukalt mõõtetulemuste
esitamise võimalust juhtekraanil kasutades Modbus andmeside liidest võttes aluseks
muundurite sisesed mõõtetulemused. Lisaks kontrolliti üle juhtimiskontrolleri füüsilised
ühendused ning määrati vabade terminali portide arvuga võimalikud lisatavad sisend- ja
väljundsignaalid. Paremaks juhtekraani mõistmiseks täiendati paneeli graafilist disaini.
Testiti sünteetilise generaatori juhtimist võrreldes omavahel määratud sisendvõimsust
väljundvõimsusega, millest täheldati mittevastavust kõrgemate võimsuste korral.
Juhtimisprogrammi tõhusamaks jälgimiseks mõtestati lahti juhtkood. Magistritöö on
koostatud kavatsusega anda edasi digitaalelektroonika labori hetkeolukorrast ning
andmaks soovitusi edasisteks arendustegevusteks.
The aim of the Master’s Thesis was to document Estonian University of Life Sciences’ the operation of the digital electronics laboratory and to improve its labour. The thesis is topical due to the growth and development of the renewable energy sector and its need for better understanding of the energy production and management. Theoretical section of the research paper consist of the brief overview of the renewable energy sources and their systems and system automation. Practical part of the paper involves the laboratory’s device systems’ principles introduction and the current situation of the system and its labour errors. The quality of the measurements presented on the main screen was examined and huge amount of errors were discovered. Then the Modbus communication protocols were tested successfully for the data transmission and presentation from the inner measurements of the inverters in order to solve the before mentioned problems. In addition the unoccupied ports of the logic controllers were illustrated to demonstrate the possible additional signal readings and writings. For the better understanding of the main screen the graphic design was improved. The power control of the synthetic generator was tested and mismanagement from the higher portions of the power was detected. In order to make the following of the main program more efficient it was examined and explained. This Master’s Thesis is composed in order to give the overview of the current scenario and to recommend further actions for development of the digital electronics laboratory.
The aim of the Master’s Thesis was to document Estonian University of Life Sciences’ the operation of the digital electronics laboratory and to improve its labour. The thesis is topical due to the growth and development of the renewable energy sector and its need for better understanding of the energy production and management. Theoretical section of the research paper consist of the brief overview of the renewable energy sources and their systems and system automation. Practical part of the paper involves the laboratory’s device systems’ principles introduction and the current situation of the system and its labour errors. The quality of the measurements presented on the main screen was examined and huge amount of errors were discovered. Then the Modbus communication protocols were tested successfully for the data transmission and presentation from the inner measurements of the inverters in order to solve the before mentioned problems. In addition the unoccupied ports of the logic controllers were illustrated to demonstrate the possible additional signal readings and writings. For the better understanding of the main screen the graphic design was improved. The power control of the synthetic generator was tested and mismanagement from the higher portions of the power was detected. In order to make the following of the main program more efficient it was examined and explained. This Master’s Thesis is composed in order to give the overview of the current scenario and to recommend further actions for development of the digital electronics laboratory.
Kirjeldus
Magistritöö
Energiakasutuse õppekaval
Märksõnad
magistritööd, andmehõive, automaatjuhtimine, redeldiagrammid