Naslov
Modeliranje transformatora pri visokim frekvencijama za proračun prenesenih prenapona
(High frequency transformer model for calculations of transferred overvoltages)

Autori
Jurišić, Bruno

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Fakultet elektrotehnike i računarstva

Mjesto
Clamart, Francuska

Datum
16.09

Godina
2013

Stranica
128

Mentor
Uglešić, Ivo

Neposredni voditelj
Xemard, Alain

Ključne riječi
Transformer ; transformer “black box” model ; transient simulations ; rational approximation ; state space model ; scattering parameters ; Electromagnetic Transient Program (EMTP)

Sažetak
Events such as lightning or switching operations of vacuum circuit breakers generate high frequency overvoltages. The equipment in transmission and distribution system has to be protected against such phenomena. The choice of appropriate measures aiming at protecting equipment is usually done by using numerical simulations with an EMTP-like tool. This approach requires components models valid over wide frequency band. However, accurate model of transformer for high frequency is not provided in EMTP-RV. In this document an overview over whole procedure of establishing a state of the art transformer model for high frequency based on terminal measurement is given. The developed model is suitable for calculation of transferred overvoltages through a transformer. The method contains usage of rational approximation and state space equations in order to represent a model in EMTP-RV as a black box. Model demonstration is included in the document.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

Napomena
Za rad je dodijeljena godišnja nagrada "Hrvoje Požar" za posebno zapažen diplomski rad.

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