Fault Recovery Strategy of Distribution Network Based on Improved Firefly Algorithm
To improve the reliability of fault recovery for act-ive distribution networks with high proportions of new energy sources,a two-stage fault recovery strategy based on an im-proved firefly algorithm is proposed.First,construct a wind and solar power storage system model to reduce the impact of wind and solar power generation uncertainties on fault recovery.In the first stage,use a combination algorithm that considers load variability and user demand to divide the distribution network into islands after a fault occurs to restore essential loads for the first time.In the second stage,use an improved firefly al-gorithm to solve the distribution network reconstruction prob-lem,which maximizes the restoration of the power supply while minimizing network losses.Finally,use the IEEE33 node distribution network as an example,and the results show that the proposed fault recovery strategy can obtain the optimal solution for distribution network fault recovery while meeting load user demand,ensuring uninterrupted power supply to es-sential loads,increasing power supply recovery rate,and redu-cing network losses after distribution network faults.The res-ults verify the effectiveness and superiority of the proposed method.
distribution networkdistributed generationis-land partitionfault recoveryimproved firefly algorithm
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