A Real-Time Monitor Framework for Static Voltage Stability of Power System

Abstract

This paper proposes a framework for real-time static voltage stability analysis and monitoring of bulk power systems. This framework involves continuous power flow (CPF) studies, weak nodes and weak regions identification, critical cut-set (transmission bottlenecks) selection and visualization of voltage stability regions. It aims to monitor voltage stability of power systems by judging whether the current operation point lies inside a considered static voltage stability region (SVSR) and calculating the voltage stability margin in cut-set power space. The software package based on this framework has been being developed in recent years and has basically taken shape till now. We will introduce the main framework and the functions of this system.