High Throughput Computing for Massive Scenario Analysis and Optimization to Minimize Cascading Blackout Risk
We describe a simulation-based optimization method that allocates additional capacity to transmission lines in order to minimize the expected value of the load shed due to a cascading blackout. Estimation of the load-shed distribution is accomplished via the ORNL-PSerc-Alaska simulation model, which...
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Veröffentlicht in: | IEEE transactions on smart grid 2017-05, Vol.8 (3), p.1427-1435 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We describe a simulation-based optimization method that allocates additional capacity to transmission lines in order to minimize the expected value of the load shed due to a cascading blackout. Estimation of the load-shed distribution is accomplished via the ORNL-PSerc-Alaska simulation model, which solves a sequence of linear programs. Key to achieving an effective algorithm is the use of a high-throughput computing environment that allocates computational resources on a platform of more than 14 000 cores simultaneously among several users. We discuss also important implementation details necessary to achieve effective implementation in this massive-scale computing environment. In the end, we demonstrate a prototype computation that reduces the expected load shed by 76% allocating only 1.1% of the installed capacity. The massive-scale computation is made possible using the computational platform provided through HTCondor, effectively obtaining over five months of CPU time in just over one day. |
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ISSN: | 1949-3053 1949-3061 |
DOI: | 10.1109/TSG.2016.2646640 |