论文标题

通过基于设定的方法对电网故障的关键清除时间估计

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

论文作者

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

论文摘要

本文关注的是,在没有大量时间域模拟的情况下,在电网的瞬态稳定性问题中估算关键清除时间。我们考虑一个高度的反电后系统(清除故障后的网格),我们将其解散为许多较小的子系统。然后,对于每个子系统,我们找到所谓的安全集,并一次模拟故障系统,以推断出所谓的安全且不安全的关键清除时间,这指定了在安全性损害之前可能保持过失可能保持活跃的时间间隔。我们通过涉及IEEE 14总线系统的数值示例演示了该方法。

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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