Cascading outages in power systems are costly events that power system operators and planners actively seek to avoid. Such events can quickly result in power outages for millions of customers. Although it is unreasonable to claim that blackouts can be completely prevented, we can nonetheless reduce the frequency and impact of such high conse-quence events. Power operators can take actions if they have the right information pro-vided by tools for monitoring and managing the risk of cascading outages. Such tools were developed in this research project by identifying contingencies that could initiate cascading outages and by determining operator actions to avoid the start of a cascade. Power system planners can also take actions if they have knowledge of the effects of transmission investments on the risk of cascading blackouts. In this project, system risk assessment tools were developed to estimate the overall risk of cascading transmission line overloads. The goal of this line of research on the risk of cascading outages is the creation of new tools that power system operators and planners can use to enhance system reliability.
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发表于 2008-10-17 01:09:24
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