Proračun zagrijavanja podzemnih visokonaponskih kabela programom ANSYS

master's thesis

• Title (english): Calculation of high voltage underground cables heat-up using ANSYS code
• Author: Bruno Fröbe
• Mentor: Davor Grgić (mentor)
• Committee member: Davor Grgić (predsjednik povjerenstva)
• Committee member: Siniša Šadek (član povjerenstva)
• Committee member: Tomislav Capuder (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-03-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Na jednostavnom testnom primjeru pokazana je razlike između analitičkog i numeričkog načina proračuna zagrijavanja kabela uz prethodni opis proračuna za obje metode. Za testni primjer poslužio nam je kabel sastavljen od dva dijela (vodiča i izolacije) smješten u homogenu zemlju. Razlika između metoda u preciznosti je zanemariva u odnosu na relativnu jednostavnost izračuna numeričkom metodom uz pomoć računalnog programa. Napravljena je analiza zagrijavanja komercijalnog 110 kV kabela u 4 konfiguracije polaganja u zemlju. Za proračun je korišten program ANSYS 18.1. Novi program uključuje parametarski definiranu geometriju i relativno je kompliciran za korištenje ali je pouzdan i moguće ga je primijeniti za po volji složeni problem zagrijavanja kabela.

Abstract (english)

On simple test case the differences were shown between analytic and numeric calculate method of cable heating with previous description of the calculation for both methods. For the test case the cable was used that is composed of two parts (conductor and insulation) placed in a homogeneous ground. The difference between the methods in accuracy is negligible compared to the relative simplicity of numerical calculation method with help of computer software. The calculation was performed for four cases of commercial power cable in underground configuration. ANSYS 18.1 code was used in calculation. The new code includes parametric design modeler for description of the geometry and it is rather complicated for use. On the other hand it is reliable in calculation and can address underground cable ampacity configuration of any complexity.

• Keywords: Energetski podzemni kabel; termička analiza; analitički proračun; numerički proračun; FEM metoda; ANSYS program
• Keywords (english): Underground power cable; thermal analysis; analytical model; numerical model; FEM method; ANSYS code
• Language: croatian
• URN:NBN: urn:nbn:hr:168:984459
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 20:19:07