20.500.12556/DKUM-98121 Analiza delnega prehoda RTP Koroška vrata na 20 kV obratovanje za napajanje mesta Maribor in naselja Kamnica magistrsko delo Analysis of the partial transition of the Koroška vrata substation to 20 kV for supplying Maribor and Kamnica Namen naloge je bila izvedba analize prehoda dela napajalnega območja RTP Koroška vrata iz 10 na 20 kV z ocenitvijo kaj vse je potrebno storiti, da bo takšen prehod mogoč. Prav tako je bila naloga preučiti možnost napajanja območja naselja Kamnice z izvedbo novega 20 kV izvoda iz RTP Koroška vrata. Izvedli smo analizo obstoječega SN omrežja, izvedli izračune pretokov moči in izračunali vrednosti padcev napetosti, ki jih občutijo posamezne transformatorske postaje ter obremenitve posameznih SN vodov. Nato smo izvedli še izračune zanesljivosti obeh napajalnih območij. Pregledali smo obstoječe SN omrežje in predvideli potrebne zamenjave kablovodov, transformatorjev in ostale elektro-energetske opreme. Predlagali smo novo ureditev SN omrežja RTP Koroška vrata in nove SN povezave, ki so potrebne za zagotovitev N-1 kriterija. Med raziskovanjem obstoječega stanja omrežja smo izvedli poglobljeno analizo meritev moči na transformatorskih postajah ter razvili algoritem za ocenjevanje manjkajočih meritev, ki med drugim temelji na genetskem algoritmu. This master’s thesis addresses the medium-voltage network supplied from the Koroška vrata substation. A partial transition of operation from 10 kV to 20 kV is analysed. Load-flow and reliability calculations are performed for both the existing and the planned network states, and the required investments for implementing the transition are examined. Due to the lack of measurements at transformer substations, an algorithm was developed to determine missing consumption profiles using a genetic algorithm. In addition, reserve operating conditions for the most critical fault scenarios are analysed. The results show that the transition to 20 kV improves operating conditions; however, it leads to a violation of the N-1 criterion within the substation. To ensure compliance with this criterion, additional connections to neighbouring substations are proposed. The findings provide a basis for planning the further development of the network. Distribucijsko omrežje RTP prehod na 20 kV srednje napetostno omrežje pretoki moči zanesljivost napajanja N-1 kriterij distribution network substation transition to 20 kV medium-voltage network load-flow analysis supply reliability N-1 criterion true true false [I. Grof] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-05-18 16:59:10 2026-05-29 09:48:03 2026-06-20 03:06:37 0000-00-00 00:00:00 2026 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XIV, 122 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.311.1.027.6(043.2) 282211075 MAG_Grof_Iztok_2026.pdf MAG_Grof_Iztok_2026.pdf 1 3ACCE00AE1ED20197AFECA01251263B1 3cbb9b4537a3594c0bc10d110bd9291fd34cfbc6f2195d85736ec0afdc826832 526991db-64a9-11f1-a53d-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=206983 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0