Operation optimization of electric power - hot water - steam integrated energy system

The distributed integrated energy system can optimize the energy structure of the user side by using natural gas and realize the cascade utilization and low energy consumption of energy. This paper takes the integrated energy system as the research object, establishes the electric power "source-network-load" model, the combined hydrothermal model and the steam network model, and proposes alternate iterative power flow solution method. On the basis of power flow solution, the integrated energy system optimization model is established with economy and system energy efficiency as the objective function, and the genetic algorithm toolbox is used to optimize the solution. The results show that the proposed operation optimization method is effective and feasible, which can effectively improve the integrated energy efficiency and realize the optimized operation of the integrated energy system. (c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the scientific committee of the 2021 The 2nd International Conference on Power Engineering, ICPE, 2021.