Aleksandr M. Kler, Fedor V. Zabuga, Vitalii E. Alekseiuk

1Melentiev Energy Systems Institute SB RAS, Irkutsk National Research Technical University, Engineering Center “Irkutskenergo” LLC

Abstract. The failure in the development of the electric power industry in the nineties of the last century in our country contributed to a decrease in the activity of the introduction of modern technologies and equipment at thermal power plants. The transition to market relations and approaches to tariff regulation today contribute to the formation of a shortage of financial resources, do not sufficiently allow updating the production funds of energy enterprises. In such a situation, there is an increasing interest in low–cost ways to modernize existing TPP equipment - the search and implementation of ways to increase its efficiency with small capital investments. The main tool for solving this problem are methods of mathematical modeling and circuit parametric optimization. 
This paper presents a methodological approach to assessing the effectiveness of the comprehensive modernization of technological schemes of existing thermal power plants (TEP), which systematizes the process of searching for possible ways to improve their efficiency, and also allows for an accurate and prompt assessment of the technical solutions under consideration. This approach consists of three stages and combines the primary solution of the problems of identifying the parameters of mathematical models of operating thermal power plants with the subsequent solution of optimization problems of their technological schemes. As examples of the practical application of the considered methodological approach, this paper presents technical solutions aimed at improving the efficiency of the operating power unit No. 5 of the CHPP-10 of Baikal Energy Company LLC.

coal-fired power unit, efficiency improvement, thermal power plant, mathematical modeling, parametric optimization, identification of mathematical model parameters, modernization of technological scheme