Determination of Optimal Connections to an External Source in Power Supply Systems with Sources of Distributed Generation

When designing a newly constructed or reconstructed power supply system, an important task is to ensure the required reliability of power supply. In power supply systems with own sources of power supply to increase reliability, it is advisable to have a connection point to the external network, this will ensure the uninterrupted power supply. In this paper, an approach is submitted to determine the optimal point of connection to the external network based on the method of direct extinguishing. At the calculations, not only the economic component is taken into account (the cost of electricity from the supplier; the cost of electricity losses during transmission, which will depend on the length of the power lines, the number of conductors, brands and cross-section of the wire), but also the reliability factor of the distribution device, and the power lines through which the power is obtained Distribution system of power supply. When evaluating reliability, such elements are taken into account as lines, switch, transformer, disconnector, cable power line. The above algorithm and its software implementation will increase the efficiency of the functioning of power supply systems with distributed generation already at the design stage.