A PSS/E based Voltage Stability Assessment Toolbox (P-VSAT) with Automated Network Modeling

This paper introduces an innovative tool aimed at aiding utility operators in assessing voltage stability. Addressing the need for a platform compatible with existing analysis tools, the study presents a comprehensive PSS/E-based Voltage Stability Assessment Application. Capable of seamless integration with PSS/E, the tool utilizes the PSS/E Python API and a detailed framework for automated network modeling, making voltage stability assessment more accessible. The assessment framework relies on centralized Thevenin-based methodologies, providing a more robust and holistic approach to voltage stability assessments. The tool’s features are showcased through a detailed analysis of the IEEE 14 bus network under various conditions and contingencies. The paper further investigates the impact of bus outages and load levels, revealing a direct correlation with voltage stability indices. These findings emphasize the critical need to consider load dynamics, contingencies, and bus outages when assessing and fortifying grid resilience against disruptions.