Machinery & Energetics

The proposed approach to mathematical models for determining economically feasible locations and reasonable values of the power of sources of distributed generation (SDG) when they are introduced into 10 kV radial distribution electric networks [4–6], is recommended to be used for 35 kV radial distribution networks that are powered by a system power supply. Moreover, in economically feasible locations of SDG, the principle of equality of voltage modules and their angles is taken into account as a criterion for minimizing active power losses and stabilizing voltage levels when changing the operating mode of an electric network with a voltage of 35 kV. Economically feasible locations of SDG are determined by the highest value of nodal specific transport costs (STC) in each individual network branch, and the values of active and reactive capacities in appropriate places are determined according to the mathematical model of the steady state with the possibility of making a choice of the composition of known and search nodal characteristics. Experimental model studies conducted and presented as evidence base on the effectiveness of using the approach proposed in [4–6] when introducing sources distributed generation in 35 kV radial distribution networks.

distribution electrical network, systemic electricity supply, the source of distributed generation, the gradient method, specific transport costs