Study On Operational Strategy Optimization Of Distributed Energy System Based On The Development Of DER-CAM

DistributedEnergySystemisasophisticatedenergysystemwhichcanbeintegratedby input multifarious kinds of energy recourses(such as solar energy,wind energy,conventional fuel and biomass energy),output various kinds of products(such as cooling,heating and electrical)and coupled the convention of energy.Building the distributed energy system not only can improvethesecurityandstabilityofutility,butalsocanrealizethecascadeutilizationofenergy.Ifthebiggestenergysavingpotentialbe supposed to excavated, the specific operational strategy of the distributed energysystemshouldbeestablished.According to this dissertation,firstly,the concept and the advantage of distributed energy system was presented.Then the principal of each kinds of energy supply technology,the optimal configuration of distributed energy system was analyzed.After that,the operational version of DER-CAM—Distributed Energy Resources Customer Adoption Model was developed with the staffs in Lawrence Berkeley National Laboratory.This version of DER-CAM,which is implemented as a Mixed-inter Liner Program(MILP)on the General Algebraic Modeling System platform.This model took the equipment fleet as fixed,and find the optimum schedule over user-defined time steps and time horizon.At last,the operation strategy of distributed energy system in Tianjin Eco-city was analyzed by using operation version DER-CAM.And the optimization of operation was made.According to the result of DER-CAM running,the detailed analysis and the development of model was presented by analyzed economic factor,energy-saving factor and CO2 emission factor.The main research achievements of this dissertation were bellowed:(1)Theoptimaloperationalstrategymodelofdistributedenergysystemwasmadeby using the core concept of mixed-inter liner program. And changed the corecalculation principle from “Fixing heat based on power” to the “Fixing powerbasedonheat”.Additional,thecalculationmodelofabsorptionchillerinDER-CAMandtheoutputstyleofcooling/heatingoperationalstrategy.(2)The specific optimal operational strategy of distributed energy system in Tianjin Eco-city in cooling season was made by the model running.The detail solution and the disadvantage of this model was displayed after the evaluation and the result was analyzed.