| Popis: |
A high proportion of renewable energy affects the power quality of distribution networks, and surplus energy will be sold to the upstream grid at a low price. In this paper, considering peer-to-peer energy transactions, the energy router-based multiple distribution networks are analyzed to solve the above problems and realize collaborative consumption of renewable energy. Presently, the investing cost of an energy router is high, and research on the economic operation of energy routers in distribution networks is little. Therefore, this paper establishes a planning model for energy routers considering peer-to-peer energy transactions among distribution networks, and explores the benefits of peer-to-peer energy transactions through energy router based multiple distribution networks. A structure of an energy router suitable for peer-to-peer energy transactions is selected, and a power flow calculation model based on a multi-layer structure is established. The energy router's scheduling model is established, and unique functions of the energy router and revenue of each distribution network are considered. A power flow calculation model based on peer-to-peer interconnection of multiple distribution networks through energy routers is also established. Finally, simulation results verify the effectiveness of the proposed planning model. Results show that peer-to-peer energy transaction among distribution networks through energy routers can effectively reduce the comprehensive cost of distribution networks, significantly improve the power quality of the distribution networks, and reduce the impact of power fluctuation on the upstream grid incurred by the distribution network. |
