Low Input Voltage DC-DC Converter for Energy Harvesting using Iron-Constantan Thermoelectric Cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F23%3APU149527" target="_blank" >RIV/00216305:26220/23:PU149527 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/xpl/conhome/10273860/proceeding" target="_blank" >https://ieeexplore.ieee.org/xpl/conhome/10273860/proceeding</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Low Input Voltage DC-DC Converter for Energy Harvesting using Iron-Constantan Thermoelectric Cells

Popis výsledku v původním jazyce

A thermoelectric generator (TEG) was constructed using a classical iron-constantan thermoelectric cells and a simple direct flame heating with an ethanol burner. Although modern TEGs based on bismuth-tellurium cells provide much higher voltage and efficiency, they are very sensitive to over-heating and cannot be used in applications with high temperature of the cell hot side ca. 400 – 500 °C at the simple direct flame heating. A series connection of 20 iron-constantan cells was used and the maximum provided no-load voltage is ca. 0.5 V at the average temperature difference between the hot and cold sides approx. 460°C. To increase the cell durability the burner is controlled to achieve a lower voltage (lower temperature) and the buck DC-DC converter self-startup at the no-load voltage of ca. 0.3 V is enabled. The construction of the whole TEG is described, the boost converter design with respect to its efficiency is proposed considering a very low input voltage and power. The solution of starting the converter at low input voltage without an additional supply source is presented. Efficiency map measurement is included.

Název v anglickém jazyce

Low Input Voltage DC-DC Converter for Energy Harvesting using Iron-Constantan Thermoelectric Cells

Popis výsledku anglicky

A thermoelectric generator (TEG) was constructed using a classical iron-constantan thermoelectric cells and a simple direct flame heating with an ethanol burner. Although modern TEGs based on bismuth-tellurium cells provide much higher voltage and efficiency, they are very sensitive to over-heating and cannot be used in applications with high temperature of the cell hot side ca. 400 – 500 °C at the simple direct flame heating. A series connection of 20 iron-constantan cells was used and the maximum provided no-load voltage is ca. 0.5 V at the average temperature difference between the hot and cold sides approx. 460°C. To increase the cell durability the burner is controlled to achieve a lower voltage (lower temperature) and the buck DC-DC converter self-startup at the no-load voltage of ca. 0.3 V is enabled. The construction of the whole TEG is described, the boost converter design with respect to its efficiency is proposed considering a very low input voltage and power. The solution of starting the converter at low input voltage without an additional supply source is presented. Efficiency map measurement is included.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF16_013%2F0001638" target="_blank" >EF16_013/0001638: Výkonové laboratoře CVVOZE - modernizace výzkumné infrastruktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2023 International Conference on Electrical Drives and Power Electronics (EDPE)

ISBN

979-8-3503-2275-0

ISSN

2770-7652

e-ISSN

—

Počet stran výsledku

7

Strana od-do

1-7

Název nakladatele

Technical University of Košice, Letná 9, 042 00 Košice

Místo vydání

Nový Smokovec, Slovakia

Místo konání akce

Nový Smokovec

Datum konání akce

25. 9. 2023

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—