Modeling of an Autonomous Energy Complex Network Based on Renewable Energy Sources with Distributed Solar Generation
DOI:
https://doi.org/10.24160/1993-6982-2026-4-54-62Keywords:
renewable energy sources, decentralized energy complexes, ETAP-19, operating parameters, power quality, harmonic distortion, current and voltage higher harmonic components, static capacitor banks (SCB), autonomous power supply, sustainable development, power systemAbstract
The article examines the energy potential of the Republic of Tajikistan, with an emphasis on the development of renewable energy sources (RES). The country has significant hydropower resources, ranking 8th globally in this indicator, yet it only uses 4–5% of its available potential. The power system is primarily based on large hydroelectric power plants, a circumstance that makes it vulnerable to seasonal and climatic fluctuations. To enhance energy security and power supply stability, special attention is given to the need for power system diversification through the use of solar, wind, biomass, and other energy sources. The development of decentralized RES is especially relevant for remote, mountainous regions not connected to the central grid. Furthermore, the RES sector can become an important driver of economic growth, creating jobs, attracting investments, and helping Tajikistan meet its international obligations in the fields of environment protection and sustainable development. A model of an autonomous energy complex based on RES has been developed in the ETAP-19 software system to assess its operating parameters and power quality indicators. The model enables the user to perform a highly accurate power system load flow calculation with determining its key parameters such as currents, voltages, power, and energy losses. It also enables the user to evaluate power quality indicators, including slow voltage variations and the total harmonic distortion (THD) for current (THDi) and voltage (THDv). It has been revealed that the presence of solar and wind power plants in the energy complex causes voltage waveform distortion, and the harmonic levels do not comply with the requirements of GOST 32144-2013. The use of static capacitor banks (SCB) in the absence of voltage regulation devices also contributes to an increase in harmonic distortion. Therefore, the necessity of conducting further research on autonomous energy complexes based on RES is emphasized to improve power quality and reliability.
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Для цитирования: Назиров Х.Б., Ганиев З.С., Абдулкеримов С.А., Джуразода Ш.Д., Ишан-Ходжаев Р.С. Моделирование автономной сети энергокомплекса на базе возобновляемых источников энергии с распределённой солнечной генерацией // Вестник МЭИ. 2026. № 4. С. 54—62. DOI: 10.24160/1993-6982-2026-4-54-62
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Конфликт интересов: авторы заявляют об отсутствии конфликта интересов
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For citation: Nazirov Kh.B., Ganiev Z.S., Abdulkerimov S.A., Jurazoda Sh.J., Ishan-Khojaev R.S. Modeling of an Autonomous Energy Complex Network Based on Renewable Energy Sources with Distributed Solar Generation. Bulletin of MPEI. 2026;4:54—62. (in Russian). DOI: 10.24160/1993-6982-2026-4-54-62
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Conflict of interests: the authors declare no conflict of interest
