Research On The Planning Of Park Integrated Energy System Considering Reliability And Demand Response

Energy crisis and environmental pollution are major challenges facing mankind.Integrated energy system can realize the coordination and complementarity of different energy systems and the cascade utilization of energy,which is one of the effective ways to improve energy efficiency and promote the sustainable development of energy and environment.The planning of energy equipment in the integrated energy system is closely related to the operation control problem,which has a vital impact on the safe and economic operation of the system.Based on this,this paper establishes a bi-level planning model for an integrated energy system,and studies the planning and operation of system equipment capacity.The specific research work is as follows:First,the basic concepts,structure and core equipment of the integrated energy system are introduced,and the corresponding equivalent mathematical model is established,and the input-output equation of the integrated energy system and the power balance matrix model are constructed,and the equipment capacity configuration that takes into account the system is proposed.The bi-level planning model considering the equipment capacity configuration and the optimization of the operation strategy,which has laid a theoretical foundation for the capacity planning and operation optimization of the park integrated energy system.Secondly,in order to realize the economical and reliable operation of the integrated energy system,a load-shortage expectation index is proposed to measure the reliability of the system’s energy supply,and comprehensively considering factors such as economy,environmental protection,and reliability,a bi-level system planning model is established,Provide indicators to analyze the planning results.A simulation study is carried out through examples,and the results show that the model can effectively improve the reliability of the system while ensuring the economic and low-carbon operation of the system.Finally,in order to strengthen the interaction between supply and demand,a integrated energy system optimization configuration model considering demand-side response was constructed.According to the dynamic time-of-use electricity price scheme,a flexible electrical load model is established;a flexible thermal load model considering the thermal inertia of the heating system and the adjustability of heat demand is established.Based on the above load model,a system example is constructed for simulation research,and the results show that the comprehensive demand response of terminal load is of great significance in reducing cost and increasing efficiency.