Modeling of New Single-Phase High Voltage Power Supply for Industrial Microwave Generators for N=2 Magnetrons

Modeling of three-limb three-phase transformer relates to shunt core using in industrial microwave generators with n=2 magnetron per phase

“…A three-phase transformer is realized by connecting three single-phase transformers or designed as a single unit [1][2][3]. This transformer model has a special structure and wide application [3,4], compared with the ordinary transformer. The modeling of this transformer depends on different approaches [2,3,5].…”

A New Validation Approach of a New Three-Phase High Voltage Power Supply for Microwaves Generators with one Magnetron by Phase

“…Currently, to supply one magnetron, the current single-phase power supply of the tube microwave generator uses a single-phase transformer with magnetic shunts by magnetron [2][3][4][5][6][7][8][9][10][11][12]. To contribute to the development of the technological innovation in the manufacturing industry of the power supply for magnetrons, this work is part of the development and validation of a new type of HV power supply with a three-phase character for one magnetron by phase.…”

“…This model will be integrated in overall scheme of the power supply to be suitable for the modeling of the whole device, using numerical simulation software MATLAB SIMULINK code. The voltage and current curves obtained by simulation compared with those obtained experimentally by a conventional power supply using a single-phase transformer for one magnetron [2][3][4][5][6][7][8][9][10][11][12]. In the second step we study the power balance of this new three-phase power supply by determining the value of the instantaneous power curve, this lead to establish the average power emitted by each magnetron, then we will establish the energetic balance of the power microwave generator by computing their performance that must be identical to that obtained experimental y.…”

Modelagem para análise de desempenho de fornos micro-ondas no contexto da qualidade de energia elétrica

“…Ainda relacionado ao modelo π do transformador de alta tensão do forno micro-ondas, outros trabalhos investigam a utilização de uma quantidade maior de magnétrons sendo alimentada pela fonte de alta tensão. Em [22], [23] e [24], é desenvolvido um modelo π do transformador monofásico para alimentação de dois magnétrons ao mesmo tempo. Já em [25], o mesmo desenvolvimento é aplicado para atender três magnétrons.…”

“…Sua função é desviar o fluxo que circula entre o enrolamento primário e secundário protegendo o magnétron contra eventuais variações de tensão. A modelagem utilizada para representar o transformador de alta tensão do forno micro-ondas se apoia na metodologia apresentada em[18],[19] e[22]. A Figura 3.3 ilustra a estrutura do transformador, utilizada para o desenvolvimento do modelo.__________________________________________________________________________________________________________________________________________________________________________ CAPÍTULO III -Modelagem matemática e computacional de um forno micro-ondas doméstico __________________________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________ 53 Figura 3.3 -Estrutura do transformador de alta tensão do forno micro-ondas [18].…”