Multi Objective Distribution Network Reconfiguration Based On Ordinal Optimization And Fuzzy Ant Colony Algorithm

Distribution network reconfiguration,in the research of power distribution system optimization and distribution automation,is very important and significant.But distribution network reconfiguration optimization problem is complex,combinatorial,and NP-hard.In recent years,researchers and scholars have put forward many algorithms to solve this problem,but these methods and theories have some problems,such as slow convergence speed and slow speed operation or optimization effect is poor.In this paper,a new improved ant colony algorithm is proposed to solve the problem of distribution network reconfiguration.Firstly,this paper summarizes the various optimization algorithms of scholars applied to distribution network reconfiguration problem,find that the ant colony algorithm has strong robustness,positive feedback and also has the advantages of easy combined with other algorithms,it has good performance to solve the distribution network reconfiguration problem.Secondly,this paper summarizes the current commonly used mathematical models,and on this basis,combined with the fuzzy control theory,the multi-objective distribution network reconfiguration mathematical model is proposed.This paper analyses the method of forward and backward generation power flow calculation based on node layering,and applies it to the distribution network reconfiguration in this paper.At the end,this paper summarizes the advantages and disadvantages of ant colony optimization,ordinal optimization theory and fuzzy control theory,then improves ant colony algorithm using ordinal optimization theory and fuzzy control rules,the corresponding MATLAB program is compiled,and the IEEE33 node distribution system is used to verify that the improved algorithm can be applied to the optimal reconfiguration and failure reconfiguration of distribution network.It has been proved that the optimized reconfiguration can improve the performance of the distribution network,and after failure reconfiguration,not only the network structure can be obtained quickly,but also the performance can be improved...