Research On Distributed Integrated Energy Station Planning Considering Multi-source Load Cluster Division

The energy issue is related to the people’s livelihood of the country and remains one of the key issues to be considered in China’s economic development.The "30·60" dual carbon target and the national "14th Five-Year Plan" are guiding the transformation of national energy structure and the path of green and low-carbon development.Regional integrated energy system has a good role in promoting the integration of source,network,load and storage and multi-energy complementary development,which can be well applied to distributed energy,reduce the dependence on fossil energy,reduce carbon emissions,and become an effective path to help the national energy structure transformation.Among them,distributed integrated energy stations,in multi-energy complementary mode,become a link between end-users,distributed energy sources and external energy networks,and occupy an important position in the development and construction of regional integrated energy systems.However,the planning and design of existing distributed integrated energy stations lack scientific and effective siting optimization methods,and the multi-energy load characteristics are not fully considered in the jurisdictional distribution of energy supply.Therefore.this paper proposes a distributed integrated energy station planning and optimization method considering multi-source load clustering division to achieve scientific siting of energy stations while further optimizing energy station equipment capacity configuration to improve the economy of system planning and reduce carbon emissions.give full play to the scale effect of distributed energy,and help build a clean,low-carbon,energy-efficient,multi-energy complementary regional integrated energy system.Based on the above background,the following research work is carried out in this paper:First,the system model of distributed integrated energy station and related theoretical foundation are analyzed.Firstly,the basic architecture of distributed integrated energy station is proposed,and the model of key equipment in the station is established.Secondly,based on the principle of combining geospatial location proximity and node load complementarity,the theory of multi-source load clustering is proposed and common load clustering algorithms are analyzed;finally,based on the planning characteristics and influencing factors of distributed integrated energy stations,the key technologies of distributed integrated energy station planning are proposed.Second,we construct a distributed integrated energy station planning and optimization model considering multi-source load clustering.Firstly,we clarify the optimization process from the framework of distributed integrated energy station planning and optimization considering multi-source load clustering;secondly,we consider the complementary load characteristics and construct the energy station siting model based on the improved p-median model with the objective of minimizing the distance of energy supply network laying for integrated energy stations;secondly,we consider the annualized total cost and annual total carbon emission as the optimization objective and the constraints of supply-demand balance,network transmission,and building area,Finally,the solution algorithm applicable to the site-selection and capacity model is proposed,and the optimal planning scheme is selected by VIKOR method.Thirdly,the simulation analysis of distributed comprehensive energy station planning is carried out.First,the load data of the planning area,natural resource data,energy price parameters and equipment parameters to be planned are organized and analyzed to determine the input parameters of the model;second,different planning scenarios are set up for simulation calculations to obtain the results of energy station site layout and installed equipment capacity under different planning scenarios,and the system economy and environmental protection under the two scenarios are compared and analyzed;finally,a comprehensive analysis of the typical daily operation effect of each energy station under different planning Finally,the typical daily operation effect of each energy station under different planning scenarios is comprehensively analyzed,and the applicability of the selected algorithm is explained.Fourth,the construction mode and development suggestions of distributed integrated energy stations are proposed.First,the types of distributed integrated energy station investment and construction entities are classified from the market perspective,and the investment and operation perspectives are used to study the distributed integrated energy station investment and construction modes.Finally,the proposals for the development of distributed energy stations are proposed from the technical,practical and policy levels.