Power System Contingency Analysis Using Improved Computational Techniques

Abstract

Transmission cables face significant challenges in today’s deregulated market due to load demand and the need to operate profitably. The utilization depends heavily on different outage situations. Line outages are graded according to their severity using Performance Index. The design of power systems makes them particularly prone to malfunction. Although it is challenging to forecast an unplanned power outage, it is essential to analyze potential failures and foresee their effects. The security of the electrical system can be assessed with the help of contingency analysis. To forecast the characteristics of the power system after any number of outages, single or multiple models are used. The major objective of this study is to identify critical double-line failures that, if they occurred, would lead to line flow violations in the power system. N2 contingency analysis is used to describe this. It takes a very long time to complete a thorough analysis of all conceivable N2 outcomes. An AC or DC power flow can be utilized to find significant double line outages without looking at all N2 possibilities. These results are contrasted with the entire AC power flow statistics. These methods can find many double-line outages that lead to line flow violations.