Approximating a post-contingency stable operation region in parameter space through time-domain simulation

Abstract

Operating criteria for power systems, such as the (N − 1)-criterion, are often based on evaluating whether the system is vulnerable to a specific set of contingencies. Therefore, a major part of power system security is concerned with establishing regions in parameter space where the system is vulnerable to specific contingencies. In this article we exploit the possibility of using Monte Carlo simulations to build an approximation of the region, in parameter space, where the power system will remain stable following a given contingency.

Oral discussions on Session: “Stability Assessment” - Part I

“…J. Lavenius: Yes, it's a 9-bus system with the AVRs and excitation limiters implemented, so we ran the full timedomain simulation and during the simulation we checked for angle instability, to determine whether an operation point was stable or unstable. But there are of course many techniques that we could, or should, use to reduce the time, because the time required for these time-domain simulations is what takes most of the time … Alex Papalexopoulos (ECCO International): My question is for the first paper by Jan Lavenius [1]. I really enjoyed it.…”

“…Claudio Canizares (University of Waterloo): This is a question for the first paper [1] (by Jan Lavenius) regarding finding these boundaries. There was a work done by Prof. Annakkage at the University of Manitoba a few years back.…”

Approximating the parameter-space stability boundary considering post-contingency corrective controls

“…In [16,17] second order approximations of the transient stability boundary were proposed. Although many contributions have been made to the subject of approximating parameter-space stability boundaries, none of them consider the important extension of post-contingency corrective controls.…”