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Avbrottsfri Kraft med användning av ultrakondensatorer
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
2014 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The supply of uninterruptible power can be applied to many areas where

continuous operation is highly prioritized.

The application of uninterruptible power for motor operation is facilitated

using a frequency converter. Direct current operated frequency converters can

be applied directly to the power reserve which removes the need for additional

power-converting.

Batteries have long constituted the power reserve but advancements in

the development of ultracapacitors have created a viable substitution. Ultra-capacitors have high energy storing capabilities and can be applied to high

power applications.

Maxwell is a leading manufacturing company of ultracapacitors and pro-vide different modules with built-in solutions for voltage balancing. Uneven

voltages between series-connected capacitors is a phenomenon caused by vary-ing capacitance. A configuration containing Maxwell’s 56V module is created

and constitutes the power reserve in the simulations.

The discharge simulation shows a significant current that could damage

the system. A current limiting transistor is introduced in the circuit to provide

a safer course of discharge. The result of the simulations confirms that the

application of ultracapacitors in uninterruptible power for motor operation is

viable.

Place, publisher, year, edition, pages
2014.
Keyword [sv]
Avbrottsfri kraft ultrakondensatorer
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-38260OAI: oai:DiVA.org:lnu-38260DiVA: diva2:763988
Subject / course
Electrical Engineering
Educational program
Electrical Engineering Programme, 180 credits
Supervisors
Examiners
Available from: 2014-11-18 Created: 2014-11-17 Last updated: 2014-11-18Bibliographically approved

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CiteExportLink to record
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  • apa
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  • de-DE
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