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The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance

In this project two types ofbuck converters, hard switching and soft switching buck converters are compared in term of power lossand reverse recovery current of diode in DC applications. The test circuit used is dc to dc buck converter circuit. The main switch ofcircuit is the IGBT and the same t...

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Main Author: AMANOV, BATYR
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2004
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://utpedia.utp.edu.my/7797/1/2004%20-%20The%20Analyses%20of%20Hard-%20and%20Soft-%20Switching%20SiC%20Schottky-%20Buck%20Converter%20Performance.pdf
http://utpedia.utp.edu.my/7797/
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spelling my-utp-utpedia.77972017-01-25T09:46:52Z http://utpedia.utp.edu.my/7797/ The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance AMANOV, BATYR TK Electrical engineering. Electronics Nuclear engineering In this project two types ofbuck converters, hard switching and soft switching buck converters are compared in term of power lossand reverse recovery current of diode in DC applications. The test circuit used is dc to dc buck converter circuit. The main switch ofcircuit is the IGBT and the same type ofIGBT is used for both techniques. The diode used is fastswitching type Silicon Carbide Schottky (SiC) diode. First semester theory research has been verified with simulations, which were conducted in Cadence Pspice 14.2. The power loss waveforms of diode and IGBT transistor were obtained. Using those power waveforms the energy loss of both circuits were calculated. Second semester, hard and soft switching choppercircuitswere constructed on PCB (Printed Circuit Boards), so that simulation results can be compared with experimentation results. All the PCB layouts were prepared in ARES IV. Powerloss waveforms were obtained from digital oscilloscope. The simulation and experimentation values are found to be quite close to one another. It has found that hard switching chopper has more energy losses comparing soft switching chopper. The main losses occur during SiC diode turn-off (caused by reverse recovery current), IGBT transistor turn-on (caused by ICe current spike) and the highest main loss is IGBT turn-off (caused by tailing time, tailing current). Reducing the turn-off and turn-on switching losses of the IGBT would imply decreasing of the total loss of the system. Thatcould be done by implementing zero voltage switching across the IGBT transistor which would decrease IGBT turn-on and turn-off losses. Universiti Teknologi Petronas 2004-11 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7797/1/2004%20-%20The%20Analyses%20of%20Hard-%20and%20Soft-%20Switching%20SiC%20Schottky-%20Buck%20Converter%20Performance.pdf AMANOV, BATYR (2004) The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
AMANOV, BATYR
The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
description In this project two types ofbuck converters, hard switching and soft switching buck converters are compared in term of power lossand reverse recovery current of diode in DC applications. The test circuit used is dc to dc buck converter circuit. The main switch ofcircuit is the IGBT and the same type ofIGBT is used for both techniques. The diode used is fastswitching type Silicon Carbide Schottky (SiC) diode. First semester theory research has been verified with simulations, which were conducted in Cadence Pspice 14.2. The power loss waveforms of diode and IGBT transistor were obtained. Using those power waveforms the energy loss of both circuits were calculated. Second semester, hard and soft switching choppercircuitswere constructed on PCB (Printed Circuit Boards), so that simulation results can be compared with experimentation results. All the PCB layouts were prepared in ARES IV. Powerloss waveforms were obtained from digital oscilloscope. The simulation and experimentation values are found to be quite close to one another. It has found that hard switching chopper has more energy losses comparing soft switching chopper. The main losses occur during SiC diode turn-off (caused by reverse recovery current), IGBT transistor turn-on (caused by ICe current spike) and the highest main loss is IGBT turn-off (caused by tailing time, tailing current). Reducing the turn-off and turn-on switching losses of the IGBT would imply decreasing of the total loss of the system. Thatcould be done by implementing zero voltage switching across the IGBT transistor which would decrease IGBT turn-on and turn-off losses.
format Final Year Project
author AMANOV, BATYR
author_facet AMANOV, BATYR
author_sort AMANOV, BATYR
title The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
title_short The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
title_full The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
title_fullStr The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
title_full_unstemmed The Analyses of Hard- and Soft- Switching SiC Schottky- Buck Converter Performance
title_sort analyses of hard- and soft- switching sic schottky- buck converter performance
publisher Universiti Teknologi Petronas
publishDate 2004
url http://utpedia.utp.edu.my/7797/1/2004%20-%20The%20Analyses%20of%20Hard-%20and%20Soft-%20Switching%20SiC%20Schottky-%20Buck%20Converter%20Performance.pdf
http://utpedia.utp.edu.my/7797/
_version_ 1739831507253460992
score 13.211869

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