Design of HF Forward Transformer Including Harmonic Eddy Current Losses

Bibliographic Details
Main Author:	Ammanambakkam Nagarajan, Dhivya
Language:	English
Published:	Wright State University / OhioLINK 2010
Subjects:	Electrical Engineering Electromagnetics Engineering Forward transformer Forward converter Harmonic Losses Eddy current Losses high frequency forward transformer design winding losses
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=wright1292874300

id	ndltd-OhioLink-oai-etd.ohiolink.edu-wright1292874300
record_format	oai_dc
spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-wright12928743002021-08-03T06:17:13Z Design of HF Forward Transformer Including Harmonic Eddy Current Losses Ammanambakkam Nagarajan, Dhivya Electrical Engineering Electromagnetics Engineering Forward transformer Forward converter Harmonic Losses Eddy current Losses high frequency forward transformer design winding losses <p>Pulse Width Modulated (PWM) Forward DC-DC converter is a buck-derived isolated power converter which is used extensively in low power to medium power applications. Satisfactory operation of the transformer utilized in forward converter playsa crucial role in the overall operation of the forward converter. Hence detailed analysispertaining to design of forward transformer is important. The forward transformeris unique as the magnetizing inductance is not required to store magnetic energy.Additionally, the forward transformer has a tertiary winding, which is required toreset the core and to prevent core saturation. This adds to the complexity of design and analysis as compared to a flyback transformer. The effect of winding lossesdue to High-Frequency (HF) eddy currents caused by harmonics is also consideredin this work. Dowell's equation was extended to determine the winding resistancesfor forward transformer in Continuous Conduction Mode (CCM). The Fourier seriesof the transformer winding current waveforms are derived. The winding resistancesderived based on the Dowell's expression and the current expressions derived basedon spectral analysis are employed in evaluating the winding losses. The procedure todesign a HF forward transformer in CCM is presented. The effect of harmonics wascomputed using MATLAB, and verified by circuit simulation with Saber Sketch. Theresults were found to be in good agreement.</p> 2010 English text Wright State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=wright1292874300 http://rave.ohiolink.edu/etdc/view?acc_num=wright1292874300 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Electrical Engineering Electromagnetics Engineering Forward transformer Forward converter Harmonic Losses Eddy current Losses high frequency forward transformer design winding losses
spellingShingle	Electrical Engineering Electromagnetics Engineering Forward transformer Forward converter Harmonic Losses Eddy current Losses high frequency forward transformer design winding losses Ammanambakkam Nagarajan, Dhivya Design of HF Forward Transformer Including Harmonic Eddy Current Losses
author	Ammanambakkam Nagarajan, Dhivya
author_facet	Ammanambakkam Nagarajan, Dhivya
author_sort	Ammanambakkam Nagarajan, Dhivya
title	Design of HF Forward Transformer Including Harmonic Eddy Current Losses
title_short	Design of HF Forward Transformer Including Harmonic Eddy Current Losses
title_full	Design of HF Forward Transformer Including Harmonic Eddy Current Losses
title_fullStr	Design of HF Forward Transformer Including Harmonic Eddy Current Losses
title_full_unstemmed	Design of HF Forward Transformer Including Harmonic Eddy Current Losses
title_sort	design of hf forward transformer including harmonic eddy current losses
publisher	Wright State University / OhioLINK
publishDate	2010
url	http://rave.ohiolink.edu/etdc/view?acc_num=wright1292874300
work_keys_str_mv	AT ammanambakkamnagarajandhivya designofhfforwardtransformerincludingharmoniceddycurrentlosses
_version_	1719434097674158080

Design of HF Forward Transformer Including Harmonic Eddy Current Losses

Similar Items