Abstract
THE PURPOSE: The article presents the results of the development of a methodology for the design calculation of reliability and changes in the level of reliability of energy systems, taking into account the influence of control actions based on statistical methods of collection, analysis and models of experimental data processing.METHODS: The system analysis and generalization of experimental data on technological failures of the main equipment of thermal power plants were used in the calculation assessment.RESULTS: The objective function of controlling the reliability parameters of the thermal power plant power equipment is proposed. The approbation of the presented objective control function was performed, which showed the adequacy of the results obtained to assess the reliability of the main nodes and elements of the TPP power equipment.CONCLUSION: The results of the conducted studies show that when determining reliability indicators, it is necessary to take into account the actual technical condition of individual elements and resource-determining functional units of thermal power plant power equipment. The results obtained can be used to develop a methodology for evaluating control actions for calculating the output control parameters and a mathematical model for changing the output characteristics of TPP steam turbines in terms of heat and electric energy generation, as well as at the stage of developing design documentation for the creation of structural elements and practical recommendations in order to extend the service life of power equipment generating systems based on digital technologies.
Highlights
Закон управления выбирают исходя из практических соображений, а желаемую динамику выходной характеристики определяют, используя расчеты надежности этой характеристики в виде наработки на отказ, интенсивности отказов, вероятности безотказной работы и других параметров, представленной как изменение функции во времени за заданный срок отработки
8. Arakelyan E.K., Boldyrev I.A., Gorban Y.A.TPP Generating unit technical and economic index accuracy increase // в сборнике: proceedings of the 2nd 2020 international youth conference on radio electronics, Electrical and Power Engineering, REEPE 2020
Summary
Д. Таким образом, имея результаты проектирования и отработки изделияаналога, можно построить функциональные зависимости и корреляционные связи, отражающие изменения конструктивных параметров, а также их влияние на выходные характеристики элементов или изделия в целом. В этом случае изменение параметра управления при доработке оказывает непосредственное влияние на выходную характеристику дорабатываемого элемента, и соответственно – выходную характеристику системы (изделия).
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