Shipboard systems deploy automated protection

Butler, K.L.; Sarma, N.D.R.; Whitcomb, Clifford A.; Carmo, H. Do; Zhang, Haibo

doi:10.1109/67.659624

Cited by 67 publications

(29 citation statements)

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“…Furthermore, thorough investigation of the operational implications of SFCL deployment, such as impact on supply restoration [23], [24] is required. This is particularly important because SFCLs may not immediately be available after operation due to the recovery period [4], [5].…”

Section: Other Practical Concernsmentioning

confidence: 99%

Superconducting fault current limiter application in a power-dense marine electrical system

Blair

Booth

Elders

et al. 2011

IET Electr. Syst. Transp.

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This version is available at https://strathprints.strath.ac.uk/40245/ 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 Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.This paper is a preprint of a paper accepted by IET Electrical Systems in Transportation and is subject to Institution of Engineering and Technology Copyright. When the final version is published, the copy of record will be available at IET Digital Library. AbstractPower-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents. This is very attractive in a marine vessel in terms of the benefits arising from reductions in switchgear rating (and consequently size, weight and cost) and damage at the point of fault. However, there are a number of issues that must be considered prior to installation of any SFCL device(s), particularly in the context of marine applications. Accordingly, this paper analyses several such issues, including: location and resistance sizing of SFCLs; the potential effects of an SFCL on system voltage, power and frequency; and practical application issues such as the potential impact of transients such as transformer inrush. Simulations based upon an actual vessel are used to illustrate discussions and support assertions. It is shown that SFCLs, even with relatively small impedances, are highly effective at reducing prospective fault currents; the impact that higher resistance values has on fault current reduction and maintaining the system voltage for 1 Dr Nand Singh is now with Mott MacDonald Ltd., Croydon, CR0 2EE, U.K 2 other non-faulted elements of the system is also presented and it is shown that higher resistance values are desirable in many cases. It is demonstrated that the exact nature of the SFCL application will depend significantly on the vessel's electrical topology, the fault current contributio...

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Section: Other Practical Concernsmentioning

confidence: 99%

Superconducting fault current limiter application in a power-dense marine electrical system

Blair

Booth

Elders

et al. 2011

IET Electr. Syst. Transp.

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“…The frequency dependence of the cable inductance 137 6. 6 The magnitude six order approximation result and the error 138 6.7…”

Section: 5mentioning

confidence: 99%

“…The used cable geometry and the mesh details 136 6. 4 The frequency dependence of the cable resistance 137…”

Section: 3mentioning

confidence: 99%

“…The inverter out voltage when connected to the developed HF cable 139 model 6. 10 The inverter output voltage when connected to the normal lumped 140 cable model xvii 6.11…”

Section: 5mentioning

confidence: 99%

“…The used Transformer Geometry 141 6.12 Lumped parameter equivalent of one winding 141 6. 13 The Frequency dependence of the transformer inductance 144 6.14 The Frequency dependence of the transformer resistance 145 6.…”

Section: 5mentioning

confidence: 99%

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Physical dynamic simulation of shipboard power system components in a distributed computational environment

Abed¹

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Abed, Nagy Youssef, "Physical dynamic simulation of shipboard power system components in a distributed computational environment" (2007 In order to perform system studies in such an environment physical phase variable models of different components of the shipboard power system were developed using operational parameters obtained from finite element (FE) analysis.These models were developed for two types of studies low and high frequency studies. Low frequency studies are used to examine the shipboard power systems v behavior under load switching, and faults. High-frequency studies were used to predict abnormal conditions due to overvoltage, and components harmonic behavior. Different experiments were conducted to validate the developed models. The Simulation and experiment results show excellent agreement.The shipboard power systems components behavior under internal faults was investigated using FE analysis. This developed technique is very curial in the Shipboard power systems faults detection due to the lack of comprehensive fault test databases.A wavelet based methodology for feature extraction of the shipboard power systems current signals was developed for harmonic and fault diagnosis studies.This modeling methodology can be utilized to evaluate and predicate the NPS components future behavior in the design stage which will reduce the development cycles, cut overall cost, prevent failures, and test each subsystem exhaustively before integrating it into the system.

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Power Circuit Breaker Using Micromechanical Switches

Momoh¹,

Mili²

2010

Operation and Control of Electric Energy Processing Systems

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Shipboard systems deploy automated protection

Cited by 67 publications

References 1 publication

Superconducting fault current limiter application in a power-dense marine electrical system

Superconducting fault current limiter application in a power-dense marine electrical system

Physical dynamic simulation of shipboard power system components in a distributed computational environment

Power Circuit Breaker Using Micromechanical Switches

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