Diyorzoda Rustam Khakimali,  Sharifov Bohirjon Nasrulloevich, Khuvatov Farukh Nazrialoevich

Annotation:

The article presents the results of a comprehensive study and optimization of power consumption modes in an isolated hybrid power system of the Murghab district of the Gorno-Badakhshan Autonomous Region (GBAO) of the Republic of Tajikistan. The relevance of the study is due to the extreme natural and climatic conditions of the region (altitude 3600-3800 m above sea level, winter temperatures down to -50°C), limited installed capacity of base-load generating sources and pronounced seasonal unevenness of power consumption. Based on actual operating data of Pomir Energy for the period 2021-2024, an analysis of the mode characteristics of the power system, including small hydroelectric power plants (SHPPs), solar power plants (SPPs) and wind power plants (WPPs), diesel generator sets (DGS) and battery energy storage systems (BES). It was found that in winter, the  generating capacity deficit reaches 30-40% of the need, which requires optimization of the load coverage structure. A mathematical model for energy balance optimization was developed based on a system of linear algebraic equations with an objective function of minimizing total costs while observing technological constraints. A quantitative assessment of the efficiency of integrating renewable energy sources and storage systems was conducted, demonstrating the feasibility of reducing the share of diesel generation in winter by 1-5% and improving power supply reliability.The scientific innovation lies in adapting optimization methods to the specific conditions of a high-altitude, isolated power system, taking into account hourly generation constraints and seasonal load unevenness.

Keywords: optimization, power consumption, hybrid power system, renewable energy sources, small hydroelectric power plants, solar power plants, wind power plants, diesel generator sets, mathematical modeling, energy balance.