Optimizacija geometrije navitij transformatorja s stališča hrupa

Mlačnik, Matic (author), Boltežar, Miha (mentor)

Hrup transformatorja, ki izvira iz vibracij navitij, je močno odvisen od poteka magnetnega polja na njihovem mestu. S spreminjanjem geometrije navitij je mogoče spremeniti potek magnetnega polja in posledično vplivati na hrup transformatorja. Vpliv spremembe geometrije na vibracije navitij je mogoče analizirati z elektromagnetnim izračunom, ki mu sledi strukturni numerični model. Za potrebe optimizacije geometrije smo razvili poenostavljen numeričen izračun hrupa, ki deluje veliko hitreje od klasičnih metod izračunov, in ga uporabili v optimizacijski zanki za optimizacijo geometrije.

• Language: Slovenian
• Keywords: hrup, transformatorji, optimizacija, geometrija, numerični modeli, navitja
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [M. Mlačnik]
• Year: 2019
• Number of pages: XXIV, 75 str.
• PID: 20.500.12556/RUL-109847
• UDC: 621.314:534:519.6(043.2)
• COBISS.SI-ID: 16922907
• Publication date in RUL: 09.09.2019

MLAČNIK, Matic, 2019, Optimizacija geometrije navitij transformatorja s stališča hrupa [online]. Master’s thesis. Ljubljana : M. Mlačnik. [Accessed 29 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=109847

Secondary language

• Language: English
• Title: Transformer winding geometry optimization from a noise aspect

Abstract

Transformer noise that results from the winding vibrations strongly depends on the surrounding magnetic field distribution. By changing the geometry of the windings, one can change the magnetic field distribution and affect the transformer noise. The effect of winding geometry change on vibrations can be analyzed with electromagnetic calculation, followed by a structural numerical model. We have developed a simplified numerical noise calculation method for the purpose of geometry optimization, that works much faster than conventional numerical methods, and used it in a geometry optimization loop.

• Keywords: noise, transformer, optimization, geometry, numerical model, winding