Projeto de Transformador utilizado em uma Planta de Plasma AUTOR Giancarlos Costa Barbosa UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE CENTRO DE TECNOLOGIA PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO-BRASIL

Abstract
The contamination of the environment is an issue that concerns all. The toxic waste is a major cause of contamination and a global solution to eliminate it is the use of thermal plasma. Currently, a toxic waste inertization plant is development. This plant is basically composed by a radio-frequency power supply (RF power supply) and an inductive plasma torch. As the power source and the torch have a difference in impedance, it is necessary to use a transformer. Thus, this work presents the methodology and the development of a medium-power transformer (50 kW) operating at high frequency (400 kHz), using software for calculating electromagnetic fields.
LINK1
https://mega.co.nz/#!ywFkxD4L!eizcB0bJFhVmwXb09Ovs20qVo9ayQR-CG2PDJBeMV1A
LINK2
http://docente.ifrn.edu.br/giancarlosbarbosa/dissertacao/dissertacao

Power Loss Calculation of High Frequency Transformers

Journal of Electrical Engineering & Technology, Vol. 1, No. 3, pp. 338~342, 2006
Geun-Soo Choi*, Shin-Yong Yoon*, Soo-Hyun Baek** and Kim Yong**
Abstract – This paper analyzed the power loss of transformers considering the magnetic component.
For this, each winding strategy and the effect of air gap between the ferrite core have been an
important variable for optimal parameter calculation. Inductors are very well known design rules to
devise, but the performance of the flyback converter as a function of transformer winding strategy has
not been fully developed. The transformer analysis tool used was PExpert. The influence of the
insulator thickness, effect of the air gap, how the window height and variation of the capacitive value
effects the coil and insulator materials are some of parameters that have been analyzed in this work.
The parameter analysis is calculated to a high frequency of 48[kHz]. Therefore, the final goal of this
paper was to calculate and adjust the parameters according to the method of winding array and air gap
minimizing the power loss.

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