Protection Strategies against Cascading Failure for Power Systems of Ring Network

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dc.contributor.authorKumar, Arun
dc.contributor.authorShwe, Hnin Y.
dc.contributor.authorChong, Peter H. J.
dc.date.accessioned2016-07-21T07:54:00Z
dc.date.available2016-07-21T07:54:00Z
dc.date.issued2016-05
dc.description.abstractPower grid vulnerability is a key issue with large blackouts, causing power disruption for millions of people. The complexity of power grid, together with excessive number of components, makes it difficult to be modeled. Currently, researchers use complex networks to model and study the performance of power grids. In fact, power grids can be modeled into a complex network by making use of ring network topology, with substations and transmission lines denoted as nodes and edges, respectively. In this paper, three protection schemes are proposed and their effectiveness in protecting the power network under high and low-load attacks is studied. The proposed schemes, namely, Cascaded Load Cut-off (CLC), Cascaded Load Overflow (CLO) and Adaptive-Cascaded Load Overflow (A-CLO), improve the robustness of the power grids, i.e., decrease the value of critical tolerance. Simulation results show that CLC and CLO protection schemes are more effective in improving the robustness of networks than the A-CLO protection scheme. However, the CLC protection scheme is effective only at the expense that certain percentage of the network will have no power supply. Thus, results show that the CLO protection scheme dominates the other protection schemes, CLC and A-CLO, in terms of the robustness of the network, improved with the precise amount of load cut-off determined.en_US
dc.identifier.urihttp://dx.doi.org/10.4236/cn.2016.82008
dc.identifier.urihttp://hdl.handle.net/123456789/863
dc.language.isoenen_US
dc.publisherScientific Research Publishingen_US
dc.relation.ispartofseriesCommunications and Network, 2016, 8, 67-78;
dc.subjectElectric Power Griden_US
dc.subjectCascading Failureen_US
dc.subjectProtection Schemesen_US
dc.subjectNetworksen_US
dc.titleProtection Strategies against Cascading Failure for Power Systems of Ring Networken_US
dc.typeArticleen_US
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