1007 KB0 KB200620262026Ažbe, ValentinHrvatin, AndrejZemljarič, Borutštevilka:4letnik:93str. 163-170ISSN:0013-5852COBISSID_HOST:301440259URN:URN:NBN:SI:doc-NHY6JTZHslElektrotehniška zveza SlovenijeElektrotehniški vestnikBIMBuilding Information Modelingenergetski kablifinite-element methodinformacijsko modeliranje gradenjmetoda končnih elementovpower cablestermična analizathermal analysisPovezava informacijskega modeliranja gradenj in izračuna toplotne kapacitete energetskih kablov|With the growing need for digital approaches in project planning and management, the past decade has witnessed a significant rise in the adoption of Building Information Modeling (BIM) which is now expanding into numerous professional fields. In the power engineering, there has been a steady increase in the use of cable systems for the electric power transmission, where the proper dimensioning of such systems is essential to ensure their reliable and efficient operation. Although several dedicated software solutions for cable dimensioning are available on the market, most do not offer a direct integration with the BIM tools. The paper investigates the possibility of linking a BIM model of a high-voltage cable system with a program developed in the FreeFEM environment, an open-source software tool for numerical solving thermal states using the finite-element method. The connection between the BIM model and FreeFEM systems is enabled using the Python programming language that employs the open-source IfcOpenShell library. Thermal analysis of the cable system was compared with the results of dedicated commercial cable dimensioning program. The final part of our paper presents a practical case study of selecting an appropriate power cable based on a real-world engineering example. Using a custom-developed interface, the BIM model can be effectively integrated or linked with any specialized program for calculating the cable thermal states. Our analysis of the impact of various factors on the power cable installation confirm that the obtained results are highly comparable to those generated by dedicated software tools, thereby validating the accuracy and applicability of our approachZ naraščajočo potrebo po uporabi digitalnih pristopov pri načrtovanju in vodenju projektov se v zadnjem desetletju vse bolj uveljavlja informacijsko modeliranje gradenj, tudi v elektroenergetiki. Pri načrtovanju elektroenergetskih omrežij je zaznati stalno rast uporabe kabelskih sistemov za prenos električne energije, pri čemer je ustrezno dimenzioniranje teh sistemov ključnega pomena za njihovo zanesljivo in učinkovito delovanje. Pri tem je ena pomembnejših analiz izračun tokovne zmogljivosti kablov preko izračuna temperaturnih razmer. Čeprav je na trgu na voljo več namenskih programskih rešitev za dimenzioniranje kablov, večina teh ne omogoča neposredne integracije z orodji za informacijsko modeliranje gradenj. V prispevku je predstavljena možnost povezave modela informacijskega modeliranja gradenj visokonapetostnega kabelskega sistema s programom za izračun toplotnih razmer, razvitim v okolju FreeFEM preko namensko razvitega programskega vmesnika. Tako je prikazano, da je mogoče model informacijskega modeliranja gradenj učinkovito vključiti oziroma povezati s poljubnim specializiranim programom za izračun temperaturnih razmer kablov. Analiza vpliva različnih dejavnikov na polaganje energetskih kablov je pokazala, da so dobljeni rezultati dobro primerljivi z rezultati namenskih programskih orodij, kar potrjuje ustreznost in uporabnost razvitega pristopaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaElektrotehniška zveza Slovenije