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The classical definitions of various centrality measures are modified to incorporate electrical parameters of the power grid. In this paper three distinct measures of centrality are presented and they are described with suitable examples. The usefulness of these measures are described. Various standard test systems are simulated to find critical nodes of… (More)

- A. B. M. Nasiruzzaman, Hemanshu Roy Pota
- ArXiv
- 2011

In this paper, a new methodology for stability assessment of a smart power system is proposed. The key to this assessment is an index called betweenness index which is based on ideas from complex network theory. The proposed betweenness index is an improvement of previous works since it considers the actual real power flow through the transmission lines… (More)

There are various premier software packages available in the market, either for free use or found at a high price, to analyse the century old electrical power system. Universities in the developed countries expend thousands of dollars per year to bring these commercial applications to the desktops of students, teachers and researchers. For teachers and… (More)

The objective of this paper is to evolve simple and effective methods for the optimal power flow (OPF) problem in thermal units, which are capable of obtaining optimal power generations for a large-scale system. In optimization, GA has some well-known advantages and disadvantages. The classical (derivative based) method is applied as economic dispatch… (More)

Power grid vulnerability to targeted attack has been a focus of research after the robust yet fragile nature of complex systems was discovered. Various measures has been proposed to analyze the topological fragility since then. This paper focuses on providing a matrix which is able to find out critical elements within the system. A step by step method for… (More)

- A. B. M. Shakeruzzaman, Most. Nahida Akter, A. B. M. Nasiruzzaman
- 2017 International Conference on Electrical…
- 2017

This paper presents an approach of power grid vulnerability assessment based on maximum flow. Solution of the maximum flow problem of the power grid provides a rank of different transmission lines of the power grid in terms of real power flow based criticality. The dual formulation of the maximum flow problem provides a set of transmission lines that need… (More)

A centrality measure has been proposed considering the directionality of power flow of future smart grid. Applicability of the proposed method has been evaluated in several standard IEEE test systems. Various comparisons are shown between impacts of removal of critical nodes found from two different models: nondirectional and bidirectional. Larger impact of… (More)

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