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Nodal conservation principle of potential energy flow analysis for energy flow calculation in energy internet

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  • Chen, Dongwen
  • Hu, Xiao
  • Li, Yong
  • Abbas, Zulkarnain
  • Wang, Ruzhu
  • Li, Dehong

Abstract

The energy internet analysis method based on energy flow analysis can be used to analyze complex flow phenomena of material and energy effectively. However, there is a lack of general conservation principles for energy flow modeling when analyzing the coupling of energy flow with different types of material and energy. Hence, it is necessary to explore the general transmission principles of energy flows based on the physical mechanism. The objective of this paper is to obtain the conservation principles of energy flow at the node and the state parameters characteristics, then develop an effective energy flow calculation method. Firstly, concepts of potential parameters are extended to the general physical potentials, such as voltage, pressure, temperature, and concentration. Then, the application limitations of Kirchhoff's loop law from circuit calculation to energy network analysis are analyzed. The nodal conservation principle of potential energy flow (PEF) and the nodal mixing principle of potential is proposed. Finally, a general PEF calculation method suitable for energy internet is proposed. The results of the 14-node heating solution network show that the general PEF calculation method can effectively analyze the heating solution network, and the number of iterations does not increase with the increase of PEF types.

Suggested Citation

  • Chen, Dongwen & Hu, Xiao & Li, Yong & Abbas, Zulkarnain & Wang, Ruzhu & Li, Dehong, 2023. "Nodal conservation principle of potential energy flow analysis for energy flow calculation in energy internet," Energy, Elsevier, vol. 263(PA).
    • Handle: RePEc:eee:energy:v:263:y:2023:i:pa:s0360544222024483
    DOI: 10.1016/j.energy.2022.125562
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