International Journal of Innovative Engineering, Technology & Science

COMPARATIVE ANALYSIS OF GRID FRAGILITY INDICES IN THE NATIONAL TRANSMISSION NETWORK
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COMPARATIVE ANALYSIS OF GRID FRAGILITY INDICES IN THE NATIONAL TRANSMISSION NETWORK

Publication Date : 30/10/2022


Author(s) :

Okorie, U. I., Nsike, O. J. , Adeyi, A. A..


Volume/Issue :
Volume 5
,
Issue 2
(10 - 2022)



Abstract :

Abstract An analysis of grid fragility of Nigeria’s transmission grid is of vital importance especially in view of high frequency of grid system collapse (an average of thirty-five system collapses per year). The analysis identifies the weaknesses inherent in the grid which makes it possible to make recommendations to improve system robustness and reliability. Load flow analysis was carried out on the Nigerian 31-bus system using the Newton-Raphson iteration method to obtain line stability index and line stability factor which are useful for the purpose of determining the lines to give priority in transmission system planning and grid expansion schemes.


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