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Wang and colleagues at Dalian University of Technology in the Chinese province of Liaoning modelled the US's west-coast grid using publicly available data on how it, and its subnetworks, are connected (Safety Science, DOI: 10.1016/j.ssci.2009.02.002).
To find out if this is indeed the case, the team analysed both the power loading and the number of connections of each grid subnetwork to establish the order in which they would trip out in the event of a major failure. To their surprise, under particular loading conditions, taking out a lightly loaded subnetwork first caused more of the grid to trip out than starting with a highly loaded one.
"An attack on the nodes with the lowest loads can be a more effective way to destroy the electrical power grid of the western US due to cascading failures," Wang says. To minimise the risk, he says, the grid's operators should defend the west coast sections by adjusting their power capacity to ensure these specific conditions do not arise.
Smart grid technologies better identify and respond to man-made or natural disruptions. Real-time information enables grid operators to isolate affected areas and redirect power flows around damaged facilities.
One of the most important issues of resist attack is the smart monitoring of power grids, which is the basis of control and management of smart grids to avoid or mitigate the system-wide disruptions like blackouts. The traditional monitoring is based on weighted least square (WLS) which is very weak and prone to fail when gross errors (including topology errors, measurement errors or parameter errors) are present. New technology of state monitor is needed to achieve the goals of the smart grids.
Originally posted by Zenagain
The way to make China go away permanently as a world power. Mass first strike nukings. Wow. Took me 3 seconds of study to figure that one out.