Analysis of a DC-DC Flyback Converter Variant for Thermoelectric Generators with Partial Energy Processing
| Autor: | Yesica Imelda Saavedra-Benitez, Elías N. Escobar-Gómez, Ricardo Marroquín-Arreola, Rafael Mota-Grajales, Héctor R. Hernández De León, Jinmi Lezama, Ricardo Eliu Lozoya-Ponce, Juan Antonio Aqui-Tapia, Mario Ponce-Silva, Daniel Salazar-Pérez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
DC-DC flyback converter
Computer Networks and Communications Computer science thermoelectric generators 020209 energy Flyback transformer R2P2 lcsh:TK7800-8360 Topology (electrical circuits) 02 engineering and technology 0202 electrical engineering electronic engineering information engineering Electronic engineering Voltage source Electrical and Electronic Engineering Flyback converter 020208 electrical & electronic engineering lcsh:Electronics Power (physics) partial energy processing Thermoelectric generator Hardware and Architecture Control and Systems Engineering Signal Processing Equivalent circuit Energy harvesting Voltage |
| Zdroj: | Electronics, Vol 10, Iss 619, p 619 (2021) Electronics Volume 10 Issue 5 |
| ISSN: | 2079-9292 |
| Popis: | This paper presents a theoretical analysis of a DC-DC flyback converter variant applied in energy harvesting based on thermoelectric generators. The main contribution of the article is the analysis and obtaining the equations of the behavior of the converter with a rearrangement of the elements of the traditional flyback converter in such a way that the converter only processes part of the energy while the other part is delivered directly to the load. This is achieved by connecting the secondary of the flyback in series with the load, and this assembly, in turn, is placed in parallel with the primary and the voltage source. This configuration means that the topology can only be a boost topology however, there are benefits such as partial power processing (R2P2) and reduced stress on converter components in both voltage and current all this leads to increase the efficiency. A Low Frequency Averaging Analysis (LFAA) was used to determine the behavior of the proposed circuit, and a simple equivalent circuit to analyze was obtained. In order to validate the theoretical analysis, a circuit was simulated in Spice and implemented in an 18 W prototype. Experimental results showed that the converter has an efficiency of 92.65%. Moreover, the rearranged flyback processed only 56% of the input power. |
| Databáze: | OpenAIRE |
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