The Status of DC Micro-Grid Protection

Cuzner, Robert; Venkataramanan, G.

doi:10.1109/08ias.2008.382

Cited by 205 publications

(128 citation statements)

References 30 publications

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“…0.801mΩ/m 0.65µH/m 10mF 0.5mF discharge of the filter capacitors throughout the network dominates the fault current profile immediately following the fault, whilst the contribution from converter interfaced generation sources and loads (where applicable) forms the latter part of the response [9,12,15]. This fault current is illustrated in Fig.…”

Section: Analysis Of Compact DC Network Fault Responsementioning

confidence: 99%

“…It is worth noting that this aspect is not typically considered for most multi-terminal dc network applications [9] as there is a much longer time peak within which the protection systems are expected to operate. However, this is not necessarily a valid assumption for compact systems.…”

Section: Second Phase Characterisationmentioning

confidence: 99%

“…The additional inductance decreases the damping in the network, hence the example UAV network would remain underdamped, so equations (8) to (12) still apply to this analysis. The impact of the inductive filter on the peak fault current can be assessed using (9). If it is approximated that the peak current is equal to…”

Section: Consideration Of Converters Containing Series Inductive Filtersmentioning

confidence: 99%

“…There has also been a rise in interest in the use of dc power distribution in other applications, including shipboard power systems and microgrids [9,[11][12][13]. As such, there has been considerable attention in recent years on developing novel protection systems for these applications which seek to overcome the inherent challenges associated with dc [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…New aircraft designs typically employ multiple power electronic converter systems for power conversion and conditioning as well as utilising dc for part or all of the power distribution network in order to capitalise on efficiency, flexibility and power density benefits [3,5,7,8]. However the lightweight and effective protection of power dense, physically compact dc networks represents a significant barrier to more widespread adoption of dc power distribution for aircraft applications [7,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Determination of protection system requirements for DC unmanned aerial vehicle electrical power networks for enhanced capability and survivability

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Norman

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IET Electrical Systems in Transportation

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This version is available at https://strathprints.strath.ac.uk/33299/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the AbstractA growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators. The characteristic behaviour of these systems under electrical fault conditions, and in particular their natural response, can produce particularly demanding protection requirements. Whilst a number of protection methods for multi-terminal dc networks have been proposed in literature, these are not universally applicable and will not meet the specific protection challenges associated with the aerospace domain. Through extensive analysis, this paper seeks to determine the operating requirements of protection systems for compact dc networks proposed for future UAV applications, with particular emphasis on dealing with the issues of capacitive discharge in these compact networks. The capability of existing multi-terminal dc network protection methods and technologies are then assessed against these criteria in order to determine their suitability for UAV applications. Recommendations for best protection practice are then proposed and key inhibiting research challenges are discussed.

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Section: Analysis Of Compact DC Network Fault Responsementioning

confidence: 99%

Section: Second Phase Characterisationmentioning

confidence: 99%

Section: Consideration Of Converters Containing Series Inductive Filtersmentioning

confidence: 99%