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arXiv · 2211.15198

Critical Clearing Time Estimates of Power Grid Faults via a Set-Based Method

Willem Esterhuizen·Gyula Molnár·Tim Aschenbruck·Franz Rußwurm·Halil Askan·Stefan Streif
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Abstract

This paper is concerned with estimating critical clearing times in the transient stability problem of power grids without extensive time-domain simulations. We consider a highdimensional post-fault system (the grid after the fault is cleared) which we decouple into many smaller subsystems. Then, for each subsystem, we find the so-called safety sets and simulate the faulted system once to deduce the so-called safe and unsafe critical clearing times, which specify the intervals of time over which the fault may remain active before safety is compromised. We demonstrate the approach with a numerical example involving the IEEE 14 bus system.

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Willem Esterhuizen, Gyula Molnár, Tim Aschenbruck, Franz Rußwurm, Halil Askan, Stefan Streif. 2022-11-28. Critical Clearing Time Estimates of Power Grid Faults via a Set-Based Method. https://arxiv.org/abs/2211.15198

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