The country seems to have quickly embarked on a new energy crisis. "From Manhattan to Montana, worries are mount­ ing that skyrocketing power prices and rolling blackouts will soon spread from their epicenter in California.... Concern about the power picture extends to the top levels of the Bush Administration as it attempts to hammer out a new energy policy."i As politicians search for possibl...

Original scientific paper Network skeleton reconfiguration is an important task during power system restoration after blackout. The uncertainty of the restoration time and the restoration successful rate during the network skeleton reconfiguration are considered in the paper. The restoration time of transmission lines and transformers, units’ startup time limit and the restoration successful ra...

The steady-state operation of maintaining voltage stability is done by switching various controllers scattered all over the power network. When a contingency occurs, whether forced or unforced, the dispatcher is to alleviate the problem in a minimum time, cost, and effort. Persistent problem may lead to blackout. The dispatcher is to have the appropriate switching of controllers in terms of typ...

plex networks are pervasive in social and physical sciences. Three recent global-scale contagions that have received attention in the media as well as academic circles are (1) current and past financial contagions (Desai 2003),1 (2) failure of the coupled infrastructure system caused by power-grid failure, for example, the Northeast blackout of 2003,2 and (3) potential pandemics caused by influ...

The risk of cascading blackouts greatly relies on failure probabilities of individual components in power grids. To quantify how component failure probabilities (CFP) influences blackout risk (BR), this paper proposes a sample-induced semianalytic approach to characterize the relationship between CFP and BR. To this end, we first give a generic component failure probability function (CoFPF) to ...

Wireless data services are fundamental in ubiquitous networks. In wireless data networks, the TCP congestion mechanism can mistake a wireless channel error or blackout for congestion on the route. Several wireless TCP protocols have been proposed considering TCP performance degradation in wireless systems. However, these protocols are too complex to deploy in wireless systems. In this paper, we...

A technical review of an incident on March 21, 2007 that began at 00:50 a.m. and led to a two-hour blackout the island Rhodes electric power system is presented with complete sequence, including all relevant registered operational data as well on-site fi eld findings. analysis disturbance was performed determine probable causes factors contributed duration disturbance. Since isolated one, it pa...

Bonneville Power Administration is investigating wide-area stability and voltage control. The control provides a flexible platform for rapid implementation of generator tripping and reactive power compensation for voltage support and stability. Features include phasor measurements, digital fiber optic communications, and fuzzy logic control. The control includes both fast and slow subsystems. T...