Influence of PV power stations on the indicators for power supply continuity in Bulgaria

The paper presents the results from a study and analysis of the indicators of continuity in the connection of photovoltaic power stations to different types of medium voltage electric distribution networks - cable and overhead. The period of survey is three years, and the number and duration of power supply interruptions are analyzed. The relative share of the SAIFI and SAIDI indicators for the two types of electric distribution network have been calculated.