Automation Tool for Simulation and Analysis of Asynchronous Operation in Power Systems

Abstract

Out-of-step, or loss of synchronism, is an undesirable operating condition of a power system that compromises secure and reliable operation. Analysis of asynchronous operation, which may lead to loss of synchronism, is crucial for identifying critical system states and designing a System Integrity Protection Scheme (SIPS) to promptly eliminate them. Such analyses are often time-consuming and computationally demanding, as they require numerous operating scenarios and are typically performed manually. This paper presents an automated tool for simulating and analysing asynchronous operation in power systems. The tool integrates a Python-based automation script with PowerFactory software as the computational engine. The implemented methodology includes an RMS time-domain simulation framework, a graphical representation of RX loci, and automatic report generation containing a list of elements with the electric centre of swings. The applicability of the proposed tool is demonstrated using the IEEE 14-bus test system.