Dynamic Simulation Modeling And Operation Strategy Analysis Of Integrated Energy System

In order to realize the sustainable development of economy and the efficient utilization of energy,people pay more attention to the integrated energy system in recent years.Integrated energy system is a kind of energy system with low-carbon,environmental protection and energy saving characteristics,which can effectively improve the utilization rate of energy and promote the consumption of renewable energy.The dynamic simulation modeling of integrated energy system plays an important role in the research of optimal control and energy scheduling.In this paper,the integrated energy system of an industrial park is taken as the object.Based on the thermal power system dynamic simulation software APROS,the equipment level model including gas turbine,flue gas lithium bromide unit,ground source heat pump and so on is established,and the energy subsystem covering electricity,heat and cold is constructed.On this basis,the prediction model of ground source heat pump energy efficiency ratio(COP)is established based on least square support vector mechanism,and the simulation modeling of ground source heat pump system based on data-driven is realized.The historical real production data is selected as the boundary condition of simulation to verify the simulation accuracy of the model.Considering the two scenarios of "peak valley level" electricity price and new energy access,the operation strategy of the integrated energy system is formulated,and the simulation operation of the operation scenario is realized based on the dynamic simulation model of the integrated energy system.The simulation results show that the operation strategies of the two typical scenarios can not only effectively save the operation cost of enterprises,but also reduce the emission of carbon dioxide,which is beneficial to environmental protection.In order to realize the visualization and operation monitoring of simulation model data,the upper computer control system is developed based on Kingview platform.The system can realize the real-time data monitoring of each equipment and energy subsystem in the system,and can switch the simulation mode through the upper computer system.The experimental results show that the dynamic simulation model can provide strong support for the research of equipment optimization and energy scheduling of integrated energy system.