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The cascade simulations demonstrate that the assumptions underlying the DC model (e.g., ignoring power losses, reactive power flows, and voltage magnitude variations) can lead to inaccurate and overly optimistic cascade predictions. Particularly, in large networks the DC model tends to overestimate the yield (the ratio of the demand supplied at the end of the cascade to the initial demand). Hence, using the DC model for cascade prediction may result in a misrepresentation of the gravity of a cascade.<\/jats:p>","DOI":"10.1145\/3199524.3199559","type":"journal-article","created":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T15:17:48Z","timestamp":1521731868000},"page":"198-203","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":22,"title":["Analyzing Cascading Failures in Power Grids under the AC and DC Power Flow Models"],"prefix":"10.1145","volume":"45","author":[{"given":"Hale","family":"Cetinay","sequence":"first","affiliation":[{"name":"Delft University of Technology Delft, Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saleh","family":"Soltan","sequence":"additional","affiliation":[{"name":"Princeton University Princeton, NJ, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fernando A.","family":"Kuipers","sequence":"additional","affiliation":[{"name":"Delft University of Technology Delft, Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gil","family":"Zussman","sequence":"additional","affiliation":[{"name":"Columbia University New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Piet","family":"Van Mieghem","sequence":"additional","affiliation":[{"name":"Delft University of Technology Delft, Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2018,3,20]]},"reference":[{"key":"e_1_2_1_1_1","unstructured":"Power systems test case archive. 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