Load power is progressively shed as large, cascading blackouts of electric power transmission systems evolve. We propose a statistical estimator to measure the extent to which the load shedding is propagated. The estimator uses data from a series of simulated blackouts. The estimator is derived from a continuous state branching process that is a high level probabilistic model of the cascading p...

Ensuring reliable operation of large power systems subjected to multiple outages is a challenging task because the combinatorial nature problem. Traditional approaches for security assessment are often limited by their scope and/or speed, resulting in missing critical contingencies that could lead cascading failures. This paper proposes two-component methodology enhance system security. The fir...

Crisis communication during power outages poses several challenges. Frist, the causes of power outages are often events such as severe weather, which also lead to complications. Second, power outages themselves lead to limitations in everyday life. Third, communication infrastructures, that are necessary for crisis communication, are often affected. This work focuses on the communication of the...

Research in the area of power system, incorporating optimal power flow and optimal load shedding, has been used in classical dispatch problems to determine control adjustments to remove line overloads. This paper reports a rule-based load shedding in a ship power system. To filter critical outages and congestion cases, a load shedding rule-based system is implemented. The algorithm searches for...

In planning studies, the conventional approach for steady state contingency analysis is to test all contingencies sequentially for evaluating system performance and reliability. This analysis consists of simulating outages of one or more generating units and transmission lines to study their effects on bus voltage, generator MVAR outputs and line power flows. But new challenges and uncertaintie...

Abstract. Strong winds induced by extratropical storms cause a large number of power outages, especially in highly forested countries such as Finland. Thus, predicting the impact is one key challenges for grid operators. This article introduces novel method to predict storm severity employing ERA5 reanalysis data combined with forest inventory. We start identifying objects from wind gust and pr...

Many large complex systems seem to exhibit evidence of self-organized criticality. Examples range from the much-studied sandpiles to the Internet. The minitrack includes five papers focused on such behavior in the bulk electric power system. Two of the papers analyze data for large disturbances in the power system gathered by the North American Electric Reliability Council (NERC) for the years ...