Isolated bidirectional converter with minimum active switches for high‐voltage ratio achievement and micro‐grid applications
| Autor: | Chih-Lung Shen, You-Sheng Shen, Tsair-Chun Liang, Po-Chieh Chiu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Leakage inductance
Correctness Computer science business.industry 020209 energy 020208 electrical & electronic engineering Electrical engineering High voltage 02 engineering and technology Inductor law.invention Inductance Capacitor law Duty cycle 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Transformer |
| Zdroj: | IET Power Electronics. 10:2208-2216 |
| ISSN: | 1755-4543 |
| DOI: | 10.1049/iet-pel.2017.0269 |
| Popis: | This study proposes a novel isolated bidirectional DC/DC converter for micro-grid system, which can fulfil battery charging and discharging. Even though the proposed converter only employs four active switches and a coupled inductor, it can achieve high-voltage ratio without excessive duty ratio or high transformer turns ratio. The power stage of the converter is mainly developed by integrating a three-winding coupled inductor, three-switched capacitors, and a flyback-behaviour converter into a novel structure. The energy stored in the leakage inductance can be totally recycled for efficiency improvement. The operation principle, steady-state analysis, and design considerations of the proposed converter are described in detail. Finally, a laboratory prototype is built to validate the converter. The measured results have verified the correctness and the theoretical analysis. |
| Databáze: | OpenAIRE |
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