Automated Estimate of the Reliability of Distribution Devices of External Sources of Power Supply Systems

The main purpose of calculating the efficiency of the development of power supply systems with sources of distributed generation is the choice of the optimal network scheme at specified loads. For power supply systems with low generation sources, an important task is to select the optimal connection point, which must be characterized by reliability and efficiency. This paper provides an algorithm for automated assessment of the reliability of substation distribution devices, which, under conditions of power supply systems with sources of distributed generation, are points of connection to the external network. The task of the algorithm is the calculation of the main indicators of reliability - the time of recovery and the failure stream parameter. Based on these indicators, the calculation of the power supply interruption of consumers is calculated, which is one of the optimization criteria when choosing the optimal connection point to an external source. The article also provides a calculation with an assessment of the reliability of distribution devices, made using bridging circuits and circuits with tires.