Year: 2022
Type: preprint
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.
Source: arXiv (Cornell University)
Authors: Esterhuizen, Willem, Molnár, Gyula, Aschenbruck, Tim, Rußwurm, Franz, Askan, Halil, Streif, Stefan
Institutions: Chemnitz University of Technology, Tennet (Germany)
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4320169840