Research On Supply-Side Integrated Energy System Planning Considering Wind-Solar-Thermal-Storage Synergy

In the context of the deepening development of the energy revolution,the large proportion of new energy on the supply side and the further expansion of the installed capacity of new energy,how to scientifically and efficiently solve the problem of large-scale scenery and other renewable energy consumption has become the focus of current research.Considering the volatility and spatial imbalance of new energy power generation,the proportion of wind and light abandonment is large,and the adjustment capacity of traditional units is limited,so the stability of power grid is easily affected.In the face of the above challenges,the comprehensive energy system,with its own advantages,can combine new energy equipment such as fan and photovoltaic with traditional units and energy storage equipment,carry out reasonable planning and utilization of various energy sources,coordinate the management of various types of equipment to provide adequate load supply,achieve stable energy supply and improve economic earnings.Therefore,this paper carries out reasonable planning for the supply side comprehensive energy system,considers the sufficient absorption of new energy and the economic benefits of the system,and carries out capacity planning for the system equipment including multiple types of wind-fire storage.This paper mainly carries out research work from the following aspects.First,the theory of supply side integrated energy system is analyzed.Firstly,the basic concept of the supply-side integrated energy system is analyzed,and the overall framework of the wind-fire storage cooperative system is established.Secondly,the multi-energy complementary characteristics of the supply-side integrated energy system are studied,and the characteristics of the charge-storage collaboration of the source network are analyzed,and the peak regulation characteristics of thermal power units are explored.Finally,the equipment types and working principles of the supply side integrated energy system are defined,and the output models of each type of equipment are constructed.Second,a supply-side integrated energy system planning optimization model is constructed.Firstly,the planning optimization idea of wind-wind-fire-storage combined system is proposed.Secondly,the composition of the system’s economic benefits is analyzed from the two aspects of its economy and the economy of network regulation.Thirdly,the absorption capacity of new energy in the combined system of wind-fire storage is analyzed,and the concept of rational utilization of new energy is introduced to build a physical model of new energy absorption capacity.Finally,taking economic benefits and new energy efficiency as optimization objectives and considering relevant constraints,a system planning optimization model was constructed.Particle swarm optimization algorithm was selected as the model solving algorithm,and the planning and optimization process of wind-fire storage system was designed.Thirdly,the planning simulation analysis of the combined wind-fire storage system is carried out.Firstly,the regional data related to planning simulation is sorted out,the system,economy,technology and other parameters are set,and simulation schemes for different planning optimization objectives are designed.Secondly,the optimal solution of the scheme is calculated,and the optimization results of the optimal capacity configuration and planning simulation are obtained.Finally,the simulation results of different planning models are discussed and analyzed,and the planning scheme and typical daily operation results under different equipment types and different new energy utilization Settings are compared to further verify the effectiveness and scientificity of the planning optimization model in this paper.