Distribution network regional opportunity maintenance model design considering total supply capability upgrade of distributed power

摘要

Because the existing maintenancemodels are notstatistically analyzed, the maintenance effect is not ideal.Therefore, a distribution network area opportunistic maintenancemodel considering the total supply capability promotionof distributed generation is designed to achieve thetotal supply capability promotion and reduce the networkloss rate after maintenance. Considering multiple timescales, the distribution network total supply capabilitymodel is constructed, and the improved repetitive powerflow algorithm is used to count the model; taking the totalsupply capability model as the reliability basis of the distributionnetwork system, and the maximum power supplycapacity as the goal, the regional opportunisticmaintenancemodel of total supply capability promotion is constructed,and the model is used to determine the area to be repaired,fully considering the reliability requirements of the distributionsystem, and combining with the node depth codingtechnology and the simulation Genetic algorithm optimizesthe network structure, realizes the network reconfiguration,and completes the model solution. Through the analysis ofthe actual data, using this model to repair the regionalequipment of distribution network can obtain good maintenanceresults. After the completion of maintenance, thenetwork loss rate is low, but the total supply capability ishigh, which has good maintenance effect.