This paper presents a new method based on phasor measurement units (PMUs) for the
estimation of voltage stability margin in a power system to increase operator's situational …

The change in the loading margin to voltage collapse when line outages occur is estimated.
First a nose curve is computed by continuation to obtain a nominal loading margin. Then …

In this paper, a critical evaluation of three Newton load flow methods based on step size
optimization is carried out. These methods are based on the computation of a scalar …

Given the current operating condition (obtained from the real-time data), the near-term load
demand at each bus (obtained from short-term load forecast), and the generation dispatch …

This paper presents a new approach for determining the minimum load shedding to restore
the solvability of a power system described by differential-algebraic equations. Through …

The objective of contingency screening and ranking function is to shortlist a specified
number of critical contingencies from a large list of credible contingencies and rank them …

This paper presents a simple, fast, and efficient method for determining the maximum
loading point (MLP) and the voltage stability security margin of electric power systems. The …

The importance of representing dynamic loads by valid dynamic models in dynamic
analyses of voltage stability is demonstrated. Several dynamic load models reported in the …

Operational reliability is normally checked using contingency analysis, thus requiring the
solution of the power flow problem under a wide variety of system conditions. As power flows …

Continuation power flow is a powerful tool to simulate power system steady-state stationary
behaviours with respect to a given power injection variation scenario. Although continuation …