Voltage Stability Analysis of the Power System of Georgia under Renewable Energy Integration

Abstract

The article addresses the analysis of voltage stability in power system of Georgia under conditions of renewable energy integration. The inclusion of renewable generation significantly changes the dynamic characteristics of the power system and makes it more difficult to maintain voltage within acceptable limits, which is particularly critical in low-inertia systems. The presented analysis is based on both simulation modeling and analytical methods, taking into account the network topology, generation structure, load characteristics, and the effectiveness of existing control mechanisms. Main objectives of the study are the identification of critical voltage points, the investigation of the dynamics of voltage dips and recovery processes, and the evaluation of the stabilization potential of existing regulation means. Special attention is given to identifying voltage stability risks under high shares of renewable sources and defining mitigation measures. The obtained results provide both technical recommendations and practical approaches for the operation and planning of Georgia’s power system.