СПОСОБЫ ПОДДЕРЖАНИЯ ЗНАЧЕНИЙ НАПРЯЖЕНИЯ И ЧАСТОТЫ В ДОПУСТИМЫХ ПРЕДЕЛАХ В УСЛОВИЯХ РАСПРЕДЕЛЕННОЙ ГЕНЕРАЦИИ ПРИ РЕЗКОПЕРЕМЕННОМ ХАРАКТЕРЕ НАГРУЗКИ ПОТРЕБИТЕЛЯ

Abstract

Relevance A promising direction for the development of domestic and foreign electric power industry is distributed generation. Distributed generation is a principle for the development of distribution networks and internal power supply networks of enterprises with a voltage level of up to 110 kV inclusive, in which power plants with an installed capacity of not more than 25 MW are located in close proximity to power consumption nodes. The reasons for the spread of this principle of development of distribution networks include the reduction of losses in the transmission of electricity, the possibility of isolated or autonomous modes of operation of energy districts, and due to the variety and high efficiency of distributed generation generating plants, the ability to use any available energy resources, including renewable energy sources. In conditions of distributed generation, power supply to consumers with a sharply variable nature of the load is difficult, which is associated with significant deviations of the mode parameters and shutdown of generating plants by emergency automatics. The reasons for such a low dynamic stability of generating installations of distributed generation are different and are determined by their operating principle, design and some other factors. The main reasons include incorrectly set operation algorithms and settings of emergency automatics, overheating of the primary engine, low moment of inertia of the turbine, and stochastic nature of power generation. Consumers with a sharply variable nature of the load include not only large industrial enterprises, but also communications enterprises, some agricultural enterprises, and the load of the housing and communal sector. Thus, a sharply variable load is present in many areas of activity and solving the issues of organizing its power supply according to the principle of distributed generation is an urgent problem. Aim of research Review of ways to maintain the mode parameters of the power supply system with distributed generation facilities and consumers with a sharply variable nature of the load. Research methods The studies were carried out using the theory of transient electromechanical processes, the theory of power transmission, and experimental results. Results A review is made of ways to maintain the mode parameters of a power supply system with distributed energy sources within a