Development of power management system for mobile UPS based on the PEM fuel cell stack

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913422" target="_blank" >RIV/60461373:22310/17:43913422 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/17:43913425

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Development of power management system for mobile UPS based on the PEM fuel cell stack

Popis výsledku v původním jazyce

Modern emergency units are supported by many electric and electronic devices allowing effective completion of their tasks. Common problem of such devices during outdoor operations represents availability of electric power supply characterized by sufficient capacity and reliability. Although power consumption of cellular phones, notebooks, GPS, walkie-talkie, lights, and other rescue equipment decreased significantly within last decades, this problem is not yet satisfactorily solved. It is because number of units and demands on their performance is uninterruptedly growing. Typical long-time consumption of rescuer/police mobile base comprises 100-200 W (up to 300 W peak). PEM fuel cell stacks represent promising technology for long time supply of such devices by electric energy. They possess several important advantages, as high efficiency, process intensity and flexibility, silent operation and nontoxic products of operation. A dynamic energy load has to be considered when designing UPS power management system. It is in contradiction to the preferable PEM fuel cell operation regime. This problem can be accomplished by utilizing correspondingly sized accumulators connected to the fuel cell stack. Some types of accumulators, however, are limited by relatively small charging currents. On the other hand, accumulators with high charging/discharging currents are characterized by narrow range of operational temperatures. An alternative option represents utilization of supercapacitors. They are able to operate under high current loads in a broad area of temperatures. Their main disadvantages, however, consist in lower energy/weight ratio and higher spontaneous discharging current when compared to accumulators.

Název v anglickém jazyce

Development of power management system for mobile UPS based on the PEM fuel cell stack

Popis výsledku anglicky

Modern emergency units are supported by many electric and electronic devices allowing effective completion of their tasks. Common problem of such devices during outdoor operations represents availability of electric power supply characterized by sufficient capacity and reliability. Although power consumption of cellular phones, notebooks, GPS, walkie-talkie, lights, and other rescue equipment decreased significantly within last decades, this problem is not yet satisfactorily solved. It is because number of units and demands on their performance is uninterruptedly growing. Typical long-time consumption of rescuer/police mobile base comprises 100-200 W (up to 300 W peak). PEM fuel cell stacks represent promising technology for long time supply of such devices by electric energy. They possess several important advantages, as high efficiency, process intensity and flexibility, silent operation and nontoxic products of operation. A dynamic energy load has to be considered when designing UPS power management system. It is in contradiction to the preferable PEM fuel cell operation regime. This problem can be accomplished by utilizing correspondingly sized accumulators connected to the fuel cell stack. Some types of accumulators, however, are limited by relatively small charging currents. On the other hand, accumulators with high charging/discharging currents are characterized by narrow range of operational temperatures. An alternative option represents utilization of supercapacitors. They are able to operate under high current loads in a broad area of temperatures. Their main disadvantages, however, consist in lower energy/weight ratio and higher spontaneous discharging current when compared to accumulators.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/VI20152019018" target="_blank" >VI20152019018: Vývoj a realizace nezávislého DC zdroje napájení s vodíkovým palivovým článkem</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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