Distributed Finite-Time Observer for Rapid Detection of Multiple Line Outages in Transmission Networks With Uncertain Parameters

Abstract

Fast line outages detection is crucial for the safe operation of power systems. This article proposes a novel algorithm for detecting multiple line outages (MLOs) using a distributed finite-time observer, which overcomes the limitations of existing methods that rely on difficult-to-obtain information, such as rotor inertia and damping ratio. The proposed algorithm relies solely on local measurements and information from neighbors to update each node's local observer. Rigorous mathematical analysis validates that the finite-time observer can converge in finite time, facilitating rapid identification of MLOs. Numerical experiments demonstrate the algorithm's rapidity and scalability.