Peculiarities of Integrating Renewable Energy Sources into the Power System

Abstract

Relevance: the integration of renewable energy sources (RES) into the power system of Uzbekistan is of strategic importance for the country's development. The integration of RES requires a comprehensive modernization of infrastructure, including the development of "Smart Grids." This stimulates the adoption of modern management technologies, energy storage systems, and the digitalization of monitoring, thereby increasing the overall efficiency of the energy sector. Thus, the integration of RES is driven not only by technical challenges but also by strategic objectives in the fields of ecology, energy security, economic development, and infrastructure modernization. Their successful resolution is the key to a prosperous future for the country.

Aim: to analyze the influence of integrating renewable energy sources on power flows and power quality in the energy system. Based on this analysis, the goal is to evaluate the capabilities and limitations of specialized software.

Methods: the following methods were used: analysis of scientific and technical literature, international standards (IEEE, IEC), and existing mathematical approaches and software tools.

Results: the analysis of scientific and technical literature allowed for the systematization and generalization of the key challenges that arise when integrating renewable energy sources (RES) into modern power systems. The results obtained reflect the general consensus of the scientific community on this issue. Studies show that for a detailed analysis of RES integration, complex software tools such as DIGSILENT Power Factory, ETAP, and PSS/E are used. There is also a growing trend toward using co-simulation (for example, MATLAB/Simulink), which allows for more accurate modeling and the development of new control algorithms.