V magistrski nalogi smo se dotaknili aktualne teme digitalizacije razdelilnih
transformatorskih postaj (RTP). S pojavom digitalne dobe sledi tudi širjenje
digitalizacije v transformatorske postaje, ki vse bolj stremijo k trendu digitalizacije
vseh podatkov, informacij, statusov in komand.
Delo obsega primerjavo konvencionalne in digitalne RTP, predstavitev
standarda IEC 61850-9-2 v avtomatizaciji postaje in opis digitalne merilne tehnike,
kot so optični tokovni in napetostni senzorji. Primerjavo konvencionalne in digitalne
RTP smo prikazali na primeru H stika. Sledila sta izračun potrebnega bakrenega
ožičenja v konvencionalni RTP in izračun potrebnih optičnih in bakrenih povezav v
digitalni RTP med inteligentnimi elektronskimi napravami za zaščito, vodenje in
meritve v nivoju polja ter procesnim nivojem s primarno opremo RTP. Po izvedbi
izračuna smo se osredotočili na ekonomsko analizo, omejeno samo na krmilne,
alarmne, analogne in statusne signale, ki potekajo med nivojem polja in procesnim
nivojem.
Rezultati so pokazali, da se z digitalizacijo RTP bakreno ožičenje v veliki meri
reducira. Ekonomska upravičenost z uporabo procesnega vodila med nivojem polja in
procesnim nivojem pa se je izkazala za negativno. Vendar se zaradi drugih pozitivnih
lastnosti digitalizacija RTP vse bolj uveljavlja. Za konec smo pregledali, s kakšnimi
izzivi se že srečujemo in kaj nas še čaka v prihodnosti.Master’s degree is concerned with contemporary theme of digitalization of
transformer substations. With the advent of \u27\u27digital era\u27\u27, a traditionally analog
secondary instrumentation and control systems within transformer substations are
increasingly becoming digital signals, with simplified ability to be processed.
Master’s degree comprises comparison between conventional and digital
substations, presentation of standard IEC 61850-9-2 within scope of substation
automatization and description of digital metering technology, such as fiber optic
current sensors and fiber optic voltage sensors. Comparison of conventional and digital
substation was performed on the case of “H’’ type main bus arrangement. Derived
from this case was the calculation of required copper wiring for conventional
substation and calculation of copper and optical connections for digital substations
between intelligent electronic devices within bay level and process level. After
calculation was performed, main focus was on economic analysis limited to control,
alarm, analog and status signals that are required between bay level and process level.
Conclusion, derived from results of quantity analysis, shows significant
reduction in required quantity of copper connections. Conclusion from economic
analysis shows that digital solution with process bus is more expensive than traditional
connections. However, due to other positive features, digitalization of the transformer
substation is becoming increasingly established. Master’s degree is concluded with an
overview of current and future challenges in the field of substation construction
