The Research Of Distributed Generation Utilization Based On Electric Thermal Storage

In recent years,distributed generation has become popular to nationwide due to the shortage of energy,so the use of distributed generation utilization ability also has become a hot direction in the scientific research.There are many factors affecting the distributed generation utilization ability,including grid’s acceptance ability and its own factors of distributed generation.So it’s a good solution to solve the distributed generation utilization ability through electric thermal storage.In this thesis,wind power system and solar power system were the main research objects in distributed generation system.This thesis established the model of distributed generation’s scheduling and comprehensive benefit,which considered the electric thermal storage system.Finally,simulation results showed,the model can improve distributed generation utilization ability and national economy.This thesis completed the following several aspects:(1)Firstly,this thesis established a wind and solar power generation model,and then processed the power generation model and the local power grid data to make the simulation,in order to get the power wave characteristics.(2)It is necessary to analysis the wind and solar power generation station based on electric thermal storage system.This thesis proposed heat storage system’s optimization scheme and the operational characteristics of distributed generation station,when the wind and solar power stations were in different capacity.(3)This thesis established the wind and solar power station scheduling model based on electric thermal storage system,and then put forward the objective function,the associated thermal equilibrium constraint and operational constraints,etc.,the goal of scheduling model system was to get the minimum operational cost.(4)This thesis developed a control strategy of heat storage system based on the particle swarm algorithm,which could satisfy the demand of heat system load capacity,and get the minimum cost of heating system during load control range.(5)This thesis established a beneficial model for the distributed generation station based on heat storage system after analyzing the operational characteristics and scheduling principle of the distributed generation station.Then,according to the data of Liaoning grid,this thesis took a simulation for the utilization scheme of distributed generation station based on heat storage system.At last,we analyzed the result of simulation,and knew that the utilization scheme model was theoretical and practical and can be widely applied.From the above study,the utilization method and comprehensive benefit evaluation model of the distributed generation which based on heat storage system will have a great practical application value.