An Accurate and Practical Core Loss Analysis for Compact High Step-Up Converters

Park, Se-Hong; Sohn, Yeong-Hoon; Shin, Se-Un; Hong, Sheng; Cho, Gyu‐Hyeong

doi:10.1109/tpel.2018.2883420

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…Generally speaking, hysteresis loss, domain wall resonance loss, eddy current loss, and natural resonance loss are the main sources of magnetic loss. The hysteresis loss occurs only at a low frequency and domain wall resonance has an obvious effect under a strong applied field [22,23]. Therefore, eddy current loss and natural resonance are the main forms of magnetic loss in GHz.…”

Section: Electromagnetic Parameter Measurementsmentioning

confidence: 99%

Facile Synthesis of Cobalt-Doped Porous Composites with Amorphous Carbon/Zn Shell for High-Performance Microwave Absorption

Jin

Zhang

et al. 2020

Nanomaterials

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A facile method for the preparation of microwave absorbers with low density, high microwave absorptivity, and broad band is of paramount importance to the progress in practical application. Herein, commonly-used metal organic frameworks (MOFs) prepared just by mechanical stirring in methanol at room temperature were chosen as sacrificial templates to synthesize porous carbon composites with tunable dielectric and magnetic properties. With the replacement of Co atoms on the surface of zeolitic imidazolate framework-67 (ZIF-67) by Zn atoms, a Co-doped porous carbon composite with a low-dielectric amorphous carbon/Zn shell was constructed after annealing, leading to excellent impedance matching condition. Consequently, the as-obtained composite (Co/C@C-800) shows marvelous microwave absorption properties with an absorption capacity of −43.97 dB and a corresponding effective absorption bandwidth of 4.1 GHz, far exceeding that of the traditional porous carbon and composites directly derived from ZIF-67. The results provide a convenient way to modify MOFs for enhanced microwave absorption materials from the synergy of dielectric and magnetic losses.

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Section: Electromagnetic Parameter Measurementsmentioning

confidence: 99%

Facile Synthesis of Cobalt-Doped Porous Composites with Amorphous Carbon/Zn Shell for High-Performance Microwave Absorption

Jin

Zhang

et al. 2020

Nanomaterials

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“…Utilizando a mesma estratégia de [18], conforme ilustrado pela Figura 2, o primário do núcleo sob teste (NST) é utilizado para excitação CA e CC, estando inserido em um conversor Boost. Um enrolamento de detecção (secundário) enrolado sobre o indutor é utilizado para obtenção do campo B, através da integração (11):…”

Section: A Circuito De Ensaiounclassified

“…Por estas razões, ao buscar uma alta acurácia, diversos autores evitam a abordagem de Steinmetz, por vezes considerando inevitável o levantamento experimental das perdas no núcleo. Publicações recentes buscam contribuir com a melhora deste processo empírico [10] - [11].…”

Section: Introductionunclassified

Análise Comparativa Entre Modelos Analíticos De Cálculo De Perdas No Núcleo Aplicados A Indutores Com Premagnetização Utilizando O Material High Flux

Bolsi¹,

Prado²,

Sartori³

et al. 2020

Eletrônica de Potência

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Este trabalho aborda o estudo e análise do comportamento das perdas no núcleo em materiais High Flux na presença de níveis contínuos de densidade de fluxo magnético, com diferentes valores de pico-a-pico, bem como a influência da frequência e razão cíclica. São apresentadas e discutidas as expressões matemáticas dos modelos analíticos empíricos mais difundidos na literatura (OSE, MSE, IGSE e WSE), em sua versão linear por partes. As perdas magnéticas estimadas pelos modelos analíticos são comparadas aos resultados experimentais, bem como às perdas obtidas fazendo uso de software de análise de elementos finitos (FEA). Foi realizado o mapeamento do uso destes cinco modelos em materiais High Flux, utilizando somente informações dadas pelo fabricante. É realizada uma discussão acerca do uso destes modelos analíticos, sob o ponto de vista de sua acurácia e simplicidade.

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Comparative analysis among Steinmetz-based analytical models applied to inductors using iron powder material considering DC bias

Bolsi

Prado

Sartori

et al. 2022

2022 14th Seminar on Power Electronics and Control (SEPOC)

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An Accurate and Practical Core Loss Analysis for Compact High Step-Up Converters

Cited by 3 publications

References 27 publications

Facile Synthesis of Cobalt-Doped Porous Composites with Amorphous Carbon/Zn Shell for High-Performance Microwave Absorption

Facile Synthesis of Cobalt-Doped Porous Composites with Amorphous Carbon/Zn Shell for High-Performance Microwave Absorption

Análise Comparativa Entre Modelos Analíticos De Cálculo De Perdas No Núcleo Aplicados A Indutores Com Premagnetização Utilizando O Material High Flux

Comparative analysis among Steinmetz-based analytical models applied to inductors using iron powder material considering DC bias

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