Central Technological Library of the University of Ljubljana (CTK)
13.
Računanje električnega polja visokonapetostnega daljnovoda nad razgibano podlago = Calculation of the electric field of the high-voltage overhead transmission line above an arbitrary ground shape
Zemljarič, Borut
Računanje elektromagnetnih polj, ki se izvaja v okviru izdelave ocene vpliva visokonapetostnih vodov na okolje, poteka večinoma prek specializiranih programskih paketov, ki uporabniku dajejo ...preprosto postavitev modela in grafično obdelavo rezultatov, pri tem pa (ne)hote zakrijejo elektromagnetno ozadje izračuna; opraviti imamo torej s črno škatlico z vhodno-izhodno enoto. Ob tem nastopa strokovni izziv: izdelati in opisati metodo, ki bo tudi manj strokovni javnosti omogočila izračunati ali verificirati rezultate izračunov, ki se izvajajo pri presoji vplivov na okolje. Navsezadnje je mogoča tudi analiza merilnih rezultatov, zajetih s cenenimi komercialnimi merilnimi instrumenti. Naš cilj je izpeljati algoritem in pripadajoče enačbe, ki bodo obvladljivi tudi z manj zahtevno programsko opremo. Rešitev najdemo v zapisu potenciala z drugo Greenovo formo v 2-D. Ta nas prek znanih potencialov na prevodnih ograjah in izračuna potencialnih koeficientov privede do razporeditve elektrin na njih, v nadaljevanju pa tudi do jakosti električnega polja v okolici daljnovoda nad razgibano podlago.
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