Quantifying transient stability of generators by basin stability and Kuramoto-like models

Abstract

Conventional approach of power system transient stability analysis use time-domain simulation and detailed system information. Recent efforts on non-uniform Kuramoto oscillators and basin stability have revealed new ways to address stability problems on power systems. In this paper, we introduce a method that can quantify how likely a generator remains synchronized after a disturbance. We show that by changing transmission line reactance, the basin stability of the system will change accordingly. Single-node basin stability can provide a relative node stability ranking for the system. This work helps bridge the gap between conventional transient stability analysis and non-linear oscillator analysis from the complex network perspective. Simulations on a two-area, four-machine system and a 16-machine, 68-bus system are provided.