Design Optimization Methodology for Planar Transformers for More Electric Aircraft

Isolated DC-DC converters are considered the building blocks of modern aircraft electrical power networks. The high-frequency transformer utilized in such converters is the major contributor to the size and weight besides the thermal management system. In this paper, an optimization design methodolo...

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Autores principales:	Mohamed I. Hassan, Niloufar Keshmiri, Alan Dorneles Callegaro, Mario F. Cruz, Mehdi Narimani, Ali Emadi
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	DC/DC converter more electric aircraft planar transformer core selection winding configurations finite element analysis Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8
Acceso en línea:	https://doaj.org/article/9f8b318958e6491e987a52a46bb3e2cc
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id	oai:doaj.org-article:9f8b318958e6491e987a52a46bb3e2cc
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spelling	oai:doaj.org-article:9f8b318958e6491e987a52a46bb3e2cc2021-11-23T00:02:08ZDesign Optimization Methodology for Planar Transformers for More Electric Aircraft2644-128410.1109/OJIES.2021.3124732https://doaj.org/article/9f8b318958e6491e987a52a46bb3e2cc2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9599357/https://doaj.org/toc/2644-1284Isolated DC-DC converters are considered the building blocks of modern aircraft electrical power networks. The high-frequency transformer utilized in such converters is the major contributor to the size and weight besides the thermal management system. In this paper, an optimization design methodology aims to minimize the transformer core size and improve the converter performance through optimized winding configurations. The transformer core selection is based on optimizing the maximum flux density while considering different magnetic materials and number of cores in parallel. The transformer core is selected for an interleaved winding configuration and to keep the windings current density below a certain limit. The trade-offs between the converter efficiency and core weight in selecting an optimum switching frequency are presented. Multi-layer minimum gradient (MLMG) winding configurations are proposed to eliminate the high-frequency oscillations (HFO) caused by the transformer parasitics. The proposed configurations resulted in a reduction of the intra-winding capacitance by 15 times with 20<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> improvement in the transformer volume as compared to a similar conventional double-layers spiral configurations. Numerical simulations are performed in ANSYS Maxwell to validate the proposed design and the developed analytical models. The effect of the different configurations on the converter performance is verified in the PLECS simulation environment. PLECS simulation results are validated experimentally for the conventional and proposed configurations highlighting the improvements on the performance of the converter.Mohamed I. HassanNiloufar KeshmiriAlan Dorneles CallegaroMario F. CruzMehdi NarimaniAli EmadiIEEEarticleDC/DC convertermore electric aircraftplanar transformercore selectionwinding configurationsfinite element analysisElectronicsTK7800-8360Industrial engineering. Management engineeringT55.4-60.8ENIEEE Open Journal of the Industrial Electronics Society, Vol 2, Pp 568-583 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	DC/DC converter more electric aircraft planar transformer core selection winding configurations finite element analysis Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8
spellingShingle	DC/DC converter more electric aircraft planar transformer core selection winding configurations finite element analysis Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8 Mohamed I. Hassan Niloufar Keshmiri Alan Dorneles Callegaro Mario F. Cruz Mehdi Narimani Ali Emadi Design Optimization Methodology for Planar Transformers for More Electric Aircraft
description	Isolated DC-DC converters are considered the building blocks of modern aircraft electrical power networks. The high-frequency transformer utilized in such converters is the major contributor to the size and weight besides the thermal management system. In this paper, an optimization design methodology aims to minimize the transformer core size and improve the converter performance through optimized winding configurations. The transformer core selection is based on optimizing the maximum flux density while considering different magnetic materials and number of cores in parallel. The transformer core is selected for an interleaved winding configuration and to keep the windings current density below a certain limit. The trade-offs between the converter efficiency and core weight in selecting an optimum switching frequency are presented. Multi-layer minimum gradient (MLMG) winding configurations are proposed to eliminate the high-frequency oscillations (HFO) caused by the transformer parasitics. The proposed configurations resulted in a reduction of the intra-winding capacitance by 15 times with 20<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> improvement in the transformer volume as compared to a similar conventional double-layers spiral configurations. Numerical simulations are performed in ANSYS Maxwell to validate the proposed design and the developed analytical models. The effect of the different configurations on the converter performance is verified in the PLECS simulation environment. PLECS simulation results are validated experimentally for the conventional and proposed configurations highlighting the improvements on the performance of the converter.
format	article
author	Mohamed I. Hassan Niloufar Keshmiri Alan Dorneles Callegaro Mario F. Cruz Mehdi Narimani Ali Emadi
author_facet	Mohamed I. Hassan Niloufar Keshmiri Alan Dorneles Callegaro Mario F. Cruz Mehdi Narimani Ali Emadi
author_sort	Mohamed I. Hassan
title	Design Optimization Methodology for Planar Transformers for More Electric Aircraft
title_short	Design Optimization Methodology for Planar Transformers for More Electric Aircraft
title_full	Design Optimization Methodology for Planar Transformers for More Electric Aircraft
title_fullStr	Design Optimization Methodology for Planar Transformers for More Electric Aircraft
title_full_unstemmed	Design Optimization Methodology for Planar Transformers for More Electric Aircraft
title_sort	design optimization methodology for planar transformers for more electric aircraft
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/9f8b318958e6491e987a52a46bb3e2cc
work_keys_str_mv	AT mohamedihassan designoptimizationmethodologyforplanartransformersformoreelectricaircraft AT niloufarkeshmiri designoptimizationmethodologyforplanartransformersformoreelectricaircraft AT alandornelescallegaro designoptimizationmethodologyforplanartransformersformoreelectricaircraft AT mariofcruz designoptimizationmethodologyforplanartransformersformoreelectricaircraft AT mehdinarimani designoptimizationmethodologyforplanartransformersformoreelectricaircraft AT aliemadi designoptimizationmethodologyforplanartransformersformoreelectricaircraft
_version_	1718417393023188992

Design Optimization Methodology for Planar Transformers for More Electric Aircraft

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