000835015 001__ 835015 000835015 005__ 20220930130127.0 000835015 0247_ $$2doi$$a10.1109/TPWRS.2017.2658022 000835015 0247_ $$2ISSN$$a0885-8950 000835015 0247_ $$2ISSN$$a1558-0679 000835015 0247_ $$2Handle$$a2128/15119 000835015 0247_ $$2WOS$$aWOS:000407854900068 000835015 0247_ $$2altmetric$$aaltmetric:23713385 000835015 037__ $$aFZJ-2017-04885 000835015 082__ $$a620 000835015 1001_ $$00000-0002-7799-3368$$aRonellenfitsch, Henrik$$b0$$eCorresponding author 000835015 245__ $$aDual theory of transmission line outages 000835015 260__ $$aNew York, NY$$bIEEE$$c2017 000835015 3367_ $$2DRIVER$$aarticle 000835015 3367_ $$2DataCite$$aOutput Types/Journal article 000835015 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1502085342_15123 000835015 3367_ $$2BibTeX$$aARTICLE 000835015 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000835015 3367_ $$00$$2EndNote$$aJournal Article 000835015 500__ $$aEarly online version 000835015 520__ $$aA new graph dual formalism is presented for the analysis of line outages in electricity networks. The dual formalism is based on a consideration of the flows around closed cycles in the network. After some exposition of the theory is presented, a new formula for the computation of Line Outage Distribution Factors (LODFs) is derived, which is not only computationally faster than existing methods, but also generalizes easily for multiple line outages and arbitrary changes to line series reactance. In addition, the dual formalism provides new physical insight for how the effects of line outages propagate through the network. 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