Reconfiguration Of Rural Distribution Network With Distributed Energy Based On PSO-BBO Hybrid Algorithm

With the shortage of fossil energy and the aggravation of environmental pollution,clean energy power generation technology has achieved rapid development.In recent years,the total amount of distributed energy in rural distribution network is increasing rapidly.In order to optimize the operation of rural distribution network,it is urgent to study the reconstruction and optimization of rural distribution network including distributed energy.On the basis of in-depth research on the current research status of distribution network reconfiguration,the reconfiguration objectives involving network loss,voltage stability and load balance are introduced,the power flow calculation models of different distributed power sources are determined,and the forward and backward generation strategy with high computational efficiency is introduced to calculate the power flow of rural distribution network.In order to improve the global exploration capability of PSO,adaptive learning factor adjustment strategy and random speed factor replacement scheme are proposed.Biogeography algorithm applying cosine migration models with better search capabilities is introduced.A novel PSO-BBO hybrid optimization algorithm was proposed by combining biogeography algorithm and improved particle swarm optimization algorithm with two-population strategy.The loop coding strategy is introduced to reduce the distribution network branches involved in optimization and reduce the search space dimension.The multi-objective optimization problem was simplified into single objective optimization problem by using the normalization algorithm,and the reconstruction optimization model of rural distribution network with distributed energy is determined.Taking IEEE33 node and IEEE69 node standard distribution network as examples,the optimization capability of the new hybrid algorithm in rural distribution network reconstruction with distributed energy is verified,and an efficient solution for rural distribution network reconstruction is proposed.By studying PSO-BBO hybrid optimization algorithm,this paper overcomes the shortcomings of traditional rural distribution network reconstruction,verifies the effectiveness and superiority of this algorithm,and proves that distributed energy access to rural distribution network can reduce network loss and improve the node voltage level.Therefore,the research on distribution network with distributed generation has important theoretical and practical significance.