Relaxation Based Modeling of GMD Induced Cascading Failures in PowerModelsGMD.jl

A major risk of geomagnetic disturbances (GMDs) is cascading failure of electrical grids. The modeling of GMD events and cascading outages in power systems is difficult, both independently and jointly, because of the many different mechanisms and physics involved. This paper introduces a relaxation...

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Bibliographic Details
Published in:arXiv.org 2021-12
Main Authors: Mate, Adam, Barnes, Arthur K, Morley, Steven K, Friz-Trillo, Jacob A, Cotilla-Sanchez, Eduardo, Blake, Sean P
Format: Article
Language:English
Subjects:
Algorithms
Electric power systems
Flow equations
Geomagnetism
Modelling
Power flow
Reactive power
Source code
Online Access:Get full text
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Summary:A major risk of geomagnetic disturbances (GMDs) is cascading failure of electrical grids. The modeling of GMD events and cascading outages in power systems is difficult, both independently and jointly, because of the many different mechanisms and physics involved. This paper introduces a relaxation based modeling of GMD-induced cascading failures:~the dc approximation-based DCSIMSEP solver was adapted to simulate cascading as a result of GMDs, the full set of ac power flow equations were relaxed to guarantee optimality, and the reactive power losses were modeled while keeping the problem convex. The developed algorithm was implemented in PowerModelsGMD.jl - an open-source software specifically designed to model and analyze geomagnetic hazards - and demonstrated to work on the RTS-GMLC-GIC-EAST synthetic test network.
ISSN:2331-8422
DOI:10.48550/arxiv.2108.06585