Author: Dr. Ananya Sharma, Dr. Ananya Sharma.
Abstract: Power system stability plays a pivotal role in ensuring the reliability, security, and efficiency of modern power grids. It encompasses the system’s capability to return to a steady state after encountering disturbances such as faults, sudden load changes, or generation outages. With the ongoing energy transition characterized by high penetration of renewable energy, distributed generation, and sophisticated demand patterns, the stability challenge is intensifying. This paper provides a comprehensive overview of stability types, including rotor angle stability, voltage stability, and frequency stability, followed by a detailed discussion of conventional and modern control strategies. It also explores advanced technologies like Flexible AC Transmission Systems (FACTS), wide-area monitoring systems (WAMS), and artificial intelligence-assisted controllers. Through comparative tables, case studies, and analysis of recent advancements, the paper outlines optimized control approaches for future-ready grids.
Keywords: Power System Stability, Control Techniques, FACTS, Smart Grid, Frequency Stability, AI Controllers.
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