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Traditional transmission planning often takes the minimum investment of network as objective function with power supply reliability as a constraint. However, this approach does not give consideration to both economy and reliability of the network. In this paper, the probabilistic method is performed to research on transmission expansion planning. Probabilistic Reliability Index (PRI) is modified,...
Ensuring the reliable operation of the power grid is more challenging, and vital, than ever. Industry restructuring presents transmission system planners with a range of uncertainties that traditional methods cannot address. EPRI's Probabilistic Reliability Assessment (PRA) program offers energy companies new, more-accurate tools for assessing grid reliability under restructured market conditions...
This paper proposes a new method for the incorporation of the generation unit and transmission line unavailability in the solution of the unit commitment problem. The above parameters are taken into account in order to assess the required spinning reserve capacity at each hour of the dispatch period, so as to maintain an acceptable reliability level. The unit commitment problem is solved by a Genetic...
EPRI has developed a probabilistic risk assessment (PRA) method under power delivery reliability initiative. Unlike the traditional deterministic contingency analysis, PRA combines a probabilistic measure of the likelihood of undesirable events with a measure of the consequence of the events into a single index. EPRI internally developed the PRA program that uses contingency analysis results as well...
This paper discussed the basic concepts, criteria, procedures and methods in probabilistic transmission planning. The main purpose is to capture probabilistic characteristics in power system planning including uncertainties in load forecast, generator locations, and random failures of system equipment. Two key steps in probabilistic transmission planning are probabilistic reliability evaluation and...
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