Model-Based Fault Detection in Power Systems

In this paper, we propose an on-line monitoring scheme to detect lost lines and bus load changes on an embedded power system. The proposed monitoring scheme does not rely on classical estimation schemes used in power systems; instead, it monitors, a carefully selected state dependant signal, using an on-line observer. A special emphasis is placed on distinguishability between the two considered events. Numerical simulations validate the developed theory around the monitoring scheme