<p>This paper describes the development and implementation of a digital simulation model of a three-phase transformer relates to shunt core transformer, which used to drive magnetron tubes in the microwave. The focus of this study is based on modeling of a new shell-type of three limbs three-phase transformer. The model uses to feed two magnetrons instead of one magnetron per phase. The proposed model is established on the simultaneous analysis of a duo electromagnetic lumped component equivalent circuit. This latter was implemented in a MATLAB environment under rated conditions. The results obtained from the application of the analytical method are provided results in conformity to the experimental tests in the case of single phase high voltage power supply for one magnetron.</p>
This article deals with the optimization of a threephase tetrahedral-type high voltage transformer, sized to supply three voltage-doubling cells and three magnetrons per phase. The optimization method used is based on an algorithm implemented in Matlab/Simulink to study the influence of transformer geometrical parameters on the electrical operation of the power supply. This study will allow to find reduced volume of transformer respecting the current constraints imposed by the magnetrons manufacturer. The choice of optimal solution is done by calculation of magnetrons powers in order to respect the nominal operation.
The main objective of this work is to treat the different proposed geometrical configurations of a high voltage transformer with a single magnetic shunt instead of that of dual magnetic shunts for industrial microwave generators power supply. This article deals with development of the single-phase high-voltage power supply based on a new model of equivalent column-type magnetic circuit for a special transformer with a single magnetic shunt, which has a special structure and wide applications. This work shows a detailed design and implementation procedure, including the design of the power supply. The sizing and the feasibility study of the equivalent transformer is covered in this articleThe experimental results are provided in order to validate the model proposed. The electric diagram obtained of this model is tested in nominal mode, using the software EMTP (Electro-Magnetic Transients Program). The electrical operation simulation was consistent with the experiments in the case of conventional power supply.
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