Оцінювання впливу генерування ВДЕ на показники надійності роботи мереж операторів систем розподілу

Abstract

The article analyzes the regulations for assessing the quality of electricity supply, which is especially important for distribution system operators in terms of the introduction of incentive tariffs. The influence of the increase in the installed capacity of RES on the normative indicator of the duration of power supply interruptions — SAIDI was determined, and also the change of the indicator of the average duration of power supply failures (min) from the year and region was analyzed. Correlation analysis was performed for a number of operators of distribution systems for the impact of renewable energy generation on SAIDI, in the periods 2013—2016 and 2017—2020. It is determined that in the period from 2013 to 2016, the growth of the installed capacity of renewable energy sources had almost no effect on the normative indicator of the duration of power outages — SAIDI. And since 2017, due to the choice of sub-optimal connection points and / or a sharp increase in the installed capacity of renewable energy sources, SAIDI is increasing. Graphs of dependence of increase of the established capacity of renewable energy sources on areas of Ukraine in the period from 2013 to 2020 are constructed. For clarity, a graph of the dependence of the installed capacity of renewable energy sources for a number of distribution system operators on the year of implementation of such capacity for two periods, namely 2013—2016 and 2017—2020. The schedule of dependence of the annual indicator of average duration of failures in power supply on areas of Ukraine in the period from 2013 to 2020 is constructed. The regions with the largest installed capacity of renewable energy sources as of the end of 2020 were selected for plotting and correlation analysis. The conclusion on the influence of renewable energy sources on the reliability of electricity supply to distribution system operators is made.