We perform modal analysis of short-term swing dynamics in multi-machine power systems.
The analysis is based on the so-called Koopman operator, a linear, infinite-dimensional …

Due to the complex interconnected nature of power system, aggregate or reduced system is
commonly used by operators and engineers for various power system studies. Transient …

This paper presents a new method to dynamically determine coherent generators and
electrical areas of an interconnected power system. The proposed method is based on …

In a bulk power system, generators can be divided into groups based on the variation of their
swing curves after disturbance occurrence. In this regard, generators that have the same …

This paper introduces a novel method of designing wide area control (WAC) based on a
discrete linear quadratic regulator and Kalman filtering based state-estimation that can be …

A novel clustering method using an artificial neural network (ANN) is presented to identify
the coherent generators for dynamic equivalents of power systems. First, a new frequency …

Paralleled grid-forming converters (GFMs) system suffers from transient instability issues
while accurate model is complicated and unsuitable to give stability analysis. Existing …

Cascading failures typically occur following a large disturbance in power systems, such as
trip** of a generating unit or a transmission line. Such failures can propagate and …

A multi-machine power network, external to a study system, has been replaced by one
equivalent machine for dynamic studies. The back-propagation and radial-basis function …

This study presents an efficient method for estimating transient stability indices of electric
power systems. It is based on equivalent network reduction techniques. The …