An Improved Energy Hub Model for Physical layer in Energy Router
2021
Energy router (ER), as the core equipment of energy internet (EI), can realize the regulation, conversion, and storage of multiple energy carriers. The conversion efficiency of ERs is important which is affected by load or temperature varying with actual operating environment. But, the efficiencies of conversion devices are assumed to be constant in the conventional ER model, which results in unreasonable operation schemes. Then, the key factors affecting the economic dispatch of the ER is the accuracy of the model. Therefore, an improved energy hub (EH) dynamic model is proposed for representing complex power flows of the physical layer, where conversion efficiency varies with temperature or load rate. Besides, to further improve the flexibility of the model, energy storage and region exchange matrix are added to the proposed model. Finally, the feasibility and effectiveness of the proposed model are verified based on the general algebraic modeling system (GAMS) in a residential area.
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