Voltage collapse is a problem that may happen when power systems are overloaded. An
accurate estimation of critical operating conditions is necessary to prevent voltage collapses …

Power dispatch is one of the basic functions in power systems operation and planning
activities. It involves security, performance, and economic aspects, while maintaining …

One of the important factors of power delivery disruption is voltage instability. As loads
increase, the grid is pushed toward instability and the voltage drops. Once instability is …

This paper presents a QV-based approach called Critical Voltage-Reactive Power Ratio
(CVQR) index to assess the voltage instability tendencies of power system buses with …

Power system networks are exposed to various environmental and economic challenges
that can have a detrimental impact on their stability and capacity to provide a consistent …

Este trabalho apresenta uma metodologia de otimização para o problema do despacho de
potência considerando quatro objetivos: i) minimização das perdas técnicas no sistema …

The smart grid is a classical power grid with added smart meters and a communication
platform. The added infrastructure is expected to lead to grid efficiency and stability. Existing …

This thesis deals with the stability issues introduced by the interconnection of massive
renewables into an isolated microgrid. This research aims to identify the problems related to …