Brittleness entropy of complex system based protection of microgrid

Huo, Guang; Wei, Qi; Rong, Panxiang; Jia, Delin

doi:10.1109/ifost.2011.6021057

Cited by 2 publications

(2 citation statements)

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“…The third group includes the proposals that are based on a purely mathematical approach. Within this field, there is a wide variety of approaches such as: using Dijkstra's algorithm (a graph search algorithm) in order to obtain the relay hierarchy of the network [43]; a different concept called brittleness entropy of a complex system to detect faults [44]; a state observer technique as a fault detector, by dividing the microgrid into different zones [45]; using the transient fault information (time and polarity features) included in the initial current travelling waves, and applying a modified mathematical morphology technology [46]; using Time-Coloured Petri Nets for fault diagnosis in microgrids [47].…”

Section: G Other Techniquesmentioning

confidence: 99%

Microgrid Protection: Technical challenges and existing techniques

Buigues

Valverde

Zamora

et al. 2013

REPQJ

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The design of protection systems associated with medium and low voltage networks has traditionally been based on the assumption of unidirectional power flows, making the use of time coordinated overcurrent relays an efficient and reliable way of protecting against network faults. The changes that these systems have undergone over the recent decades regarding distributed generation, along with the fact that many of these sources can be connected to form independent microgrids, have challenged this perspective. A number of alternative solutions have recently appeared in technical literature. Therefore, this paper aims to provide a comprehensive overview of the existing proposals for protection design in microgrids. Apart from describing the most relevant options presented to date and classifying them in specific groups, a comparative analysis is performed in which the most important benefits and drawbacks of each approach are presented. Finally, some conclusions and practical recommendations are derived from the analyzed references.

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Section: G Other Techniquesmentioning

confidence: 99%

Microgrid Protection: Technical challenges and existing techniques

Buigues

Valverde

Zamora

et al. 2013

REPQJ

View full text Add to dashboard Cite

show abstract

“…The third class includes proposals which rely on a purely mathematical method. Within this field, there is an extensive variety of methods ,such as using Dijkstra's Algorithm (a graph search algorithm) to attain the relay hierarchy of the power distribution system [89], a discrete idea known as "Brittleness Entropy" of a complicated network to sense faults [90], a state observer procedure as a fault detector by grouping the microgrid into various protection areas [91], using the transient fault data (polarity-time characteristics) incorporated in the preliminary current travelling waves, and applying an altered mathematical morphology analysis technology [92], and using time-colored Petri nets (place/ transition nets) for fault analysis in microgrids [93].…”

Section: Other Protection Schemesmentioning

confidence: 99%

A Comprehensive Review of Protection Schemes for Distributed Generation

Shahzad¹,

Asgarpoor²

2017

EPE

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Due to the increasing demand of energy and the need for nonconventional energy sources, distributed generation (DG) has come into play. The trend of unidirectional power flow has been gradually shifting. With new technology comes new challenges, the introduction of DG into the conventional power system brings various challenges; one of the major challenges is system protection under DG sources. These sources pose a significant challenge due to bidirectional flows from DGs as well as lower fault current contribution from inverter interfaced DGs. This paper reviews existing protection schemes that have been suggested for active distribution networks. Most of these protection strategies apply only to smaller distribution systems implying that they may need to be extended to larger systems with a much higher penetration of distributed generation. In the end, a potential protection scheme has also been recommended as a future work.

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Brittleness entropy of complex system based protection of microgrid

Cited by 2 publications

References 1 publication

Microgrid Protection: Technical challenges and existing techniques

Microgrid Protection: Technical challenges and existing techniques

A Comprehensive Review of Protection Schemes for Distributed Generation

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