Analysis of a Three-Level Bidirectional ZVS Resonant Converter
A bidirectional three-level soft switching circuit topology is proposed and implemented for medium voltage applications such as 750 V dc light rail transit, high power converters, or dc microgrid systems. The studied converter is constructed with a three-level diode-clamp circuit topology with the a...
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MDPI AG
2020-12-01
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Online Access: | https://www.mdpi.com/2076-3417/10/24/9136 |
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author | Bor-Ren Lin Wei-Po Liu |
author_facet | Bor-Ren Lin Wei-Po Liu |
author_sort | Bor-Ren Lin |
collection | DOAJ |
description | A bidirectional three-level soft switching circuit topology is proposed and implemented for medium voltage applications such as 750 V dc light rail transit, high power converters, or dc microgrid systems. The studied converter is constructed with a three-level diode-clamp circuit topology with the advantage of low voltage rating on the high-voltage side and a full-bridge circuit topology with the advantage of a low current rating on the low-voltage side. Under the forward power flow operation, the three-level converter is operated to regulate load voltage. Under the reverse power flow operation, the full-bridge circuit is operated to control high-side voltage. The proposed <i>LLC</i> resonant circuit is adopted to achieve bidirectional power operation and zero-voltage switching (ZVS). The achievability of the studied bidirectional ZVS converter is established from the experiments. |
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format | Article |
id | doaj.art-1dcbd2c7c53c49618873f4267453cb06 |
institution | Directory Open Access Journal |
issn | 2076-3417 |
language | English |
last_indexed | 2024-03-10T13:52:00Z |
publishDate | 2020-12-01 |
publisher | MDPI AG |
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series | Applied Sciences |
spelling | doaj.art-1dcbd2c7c53c49618873f4267453cb062023-11-21T01:57:20ZengMDPI AGApplied Sciences2076-34172020-12-011024913610.3390/app10249136Analysis of a Three-Level Bidirectional ZVS Resonant ConverterBor-Ren Lin0Wei-Po Liu1Department of Electrical Engineering, NYUST, 123, Section 3, University Road, Yunlin 640, TaiwanDepartment of Electrical Engineering, NYUST, 123, Section 3, University Road, Yunlin 640, TaiwanA bidirectional three-level soft switching circuit topology is proposed and implemented for medium voltage applications such as 750 V dc light rail transit, high power converters, or dc microgrid systems. The studied converter is constructed with a three-level diode-clamp circuit topology with the advantage of low voltage rating on the high-voltage side and a full-bridge circuit topology with the advantage of a low current rating on the low-voltage side. Under the forward power flow operation, the three-level converter is operated to regulate load voltage. Under the reverse power flow operation, the full-bridge circuit is operated to control high-side voltage. The proposed <i>LLC</i> resonant circuit is adopted to achieve bidirectional power operation and zero-voltage switching (ZVS). The achievability of the studied bidirectional ZVS converter is established from the experiments.https://www.mdpi.com/2076-3417/10/24/9136PWM convertersresonant converterfrequency controlanalog circuit |
spellingShingle | Bor-Ren Lin Wei-Po Liu Analysis of a Three-Level Bidirectional ZVS Resonant Converter Applied Sciences PWM converters resonant converter frequency control analog circuit |
title | Analysis of a Three-Level Bidirectional ZVS Resonant Converter |
title_full | Analysis of a Three-Level Bidirectional ZVS Resonant Converter |
title_fullStr | Analysis of a Three-Level Bidirectional ZVS Resonant Converter |
title_full_unstemmed | Analysis of a Three-Level Bidirectional ZVS Resonant Converter |
title_short | Analysis of a Three-Level Bidirectional ZVS Resonant Converter |
title_sort | analysis of a three level bidirectional zvs resonant converter |
topic | PWM converters resonant converter frequency control analog circuit |
url | https://www.mdpi.com/2076-3417/10/24/9136 |
work_keys_str_mv | AT borrenlin analysisofathreelevelbidirectionalzvsresonantconverter AT weipoliu analysisofathreelevelbidirectionalzvsresonantconverter |