The Power System Transient Stability Analysis under Fault Scenarios using MATLAB

Abstract

This research investigates the transient stability of power systems through MATLAB simulations, focusing on both unstable and stable conditions. In the context of a single-machine infinite bus power system, the study investigates how tiny signal disruptions, such as circuit breaker actions, affect system behavior. The MATLAB software calculates crucial metrics such as maximum power, synchronizing power coefficient, un-damped frequency of oscillation, and damping ratio, which provide information on the system's transient stability under unstable conditions. Furthermore, the study provides an example of a stable condition employing state-space modeling and a step function to respond to rotor angle and frequency. The research examines stability settings comparable to those used in the unstable scenario and shows how the system behaves when the power input is changed slightly. The MATLAB simulations generate plots illustrating load angle and frequency for both stable and unstable conditions. In the discussion and conclusion section, consider the significance of transient stability analysis in power systems, highlighting the need for ongoing study in this field. The research finishes by recommending further research into multi-machine power systems to improve our understanding of transient stability dynamics. This study provides useful information for power system engineers and researchers, assisting in the development of solutions to preserve the stability and dependability of electrical power networks.