Inessa N. Pogodaeva, Vladislav A. Shakirov

Bratsk State University, Irkutsk National Research Technical University

The problem of energy supply to areas remote from the power grid remains relevant and is solved mainly in the modernization of diesel power plants and the construction of hybrid energy complexes with renewable energy sources. The life cycle of hybrid energy complexes is several decades, so the design must take into account all the main goals - economic and technical efficiency, minimizing environmental impacts, reliability. The multi-criteria nature of the problem requires the involvement of a decision maker to express preferences regarding the importance of performance indicators of various options for the energy complex. The stochastic nature of renewable generation and the variety of operating restrictions lead to the need to use special software for simulating operating conditions with hourly resolution. The article discusses an approach to multi-criteria selection of a hybrid energy complex from a variety of alternatives generated in the HOMER PRO program, using three methods: TOPSIS and PROMETHEE I, II. The methods have differences in the procedures for evaluating alternatives and thereby increase the validity of the choice. A numerical example is considered for the Ust-Soboleka. Hybrid energy complexes are formed using diesel generation technologies, wind power plants, photovoltaic converters, micro-hydroelectric power plants and energy storage devices. The study examines three scenarios for the development of the region, which entails differences in assessments of the importance of the criteria.

hybrid energy complex, multi-criteria analysis, power plant, modeling, renewable energy sources, TOPSIS, PROMETHEE