Abstract
The paper describes graph-based approach of electric energy distribution by means of directed energy flows and cost flows in an electric network. The basic idea is connected to allocation of electric utilities’ energy transport costs between output nodes of an electric network. The methodology proposed can be described as a two-stage procedure. At first, total costs are allocated between nodes (substations) and branches (power lines) proportionally to the contribution to the total electric utilities’ energy transport costs of each element of the network. The results are obtained via energy flow model, which interconnects energy flows in nodes and branches. At the second stage, energy distribution costs are divided proportionally to the energy flows at each element of the network in order to quantify distribution costs for each consumer. As a result, it is possible to allocate distribution costs between nodes and branches, including electricity consumption nodes, to calculate energy-cost flows. Using the approach proposed, individual costs of electric energy transport to each particular consumption node can be easily assessed. As a result, individual distribution tariffs can be estimated.
Keywords
Electic energy distribution, energy flow model, energy flows, cost flows, distribution tariff.
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