Allocation of Microgrid Group Source Storage Capacity Considering the Spatiotemporal Correlation of Renewable Energy Generation
In order to improve the power coordination ability among microgrids in the microgrid group,it is necessary to consider the correlation between renewable energy generation output and the difference in load time distribution in different regions in the microgrid group planning.A scenario generation method that considers the spatio-temporal correlation of renewable energy power generation was proposed.Based on the spatial distance between microgrids in microgrids and the temporal characteristics of renewable energy power generation output,Nataf transformation and temporal reconstruction methods were used to generate scene-solar power output scenes that meet the temporal and spatial correlation.Then,the capacity allocation model of multi-objective microgrid group with minimum annual total cost and cumulative source-load difference was established.Finally,Jaya algorithm with non-dominated sorting and congestion improvement was adopted to solve the problem.Fuzzy membership function was used to evaluate the Pareto solution and select the optimal allocation scheme of wind storage in microgrid group.The results of the example show that the total investment cost can be effectively reduced by the precise allocation of the source storage capacity of the microgrid cluster,while the carbon emission level of the microgrid cluster can be reduced and the absorption capacity of renewable energy can be improved.
microgrid group capacity allocationspatiotemporal correlationNataf transformationmulti-objective Jaya algorithm(MOJaya)
万方数据
维普
