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Journal of Fundamental and Applied Sciences

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Line outage contingency analysis including the system islanding scenario

A Amin Eskandari Dehkordi, B Hasan Meyar Naimi

Abstract


The paper describes an algorithm for determining the line outage contingency of a line taking into account of line over load effect in remaining lines and subsequent tripping of over loaded line(s) leading to possible system split or islanding of a power system. The optimally ordered sparse [], [] matrices for the integrated system are used for load flow analysis to determine modified values of voltage phase angles [d] and bus voltages [V] to determine the over loading effect on the remaining lines due to outage of a selected line outage contingency. In case of over loading in remaining line(s), the over loaded lines are removed from the system and a topology processor is used to find the islands. A fast decoupled load flow (FDLF) analysis is carried out for finding out the system variables for the islanded (or single island) system by incorporating appropriate modification in the [] and [] matrices of the integrated system.

Keywords: Contingency; Line outage; Rotating mass; System islanding




http://dx.doi.org/10.4314/jfas.v8i3s.256
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