A mathematical model on reactive plan optimization of distribution network at the maximum load operating mode is established

which takes the maximum integrated economic and technological benefits of electric power loss of distribution network

the investment of reactive power compensation equipment and the quality of node voltage as the objective function.For the characteristics of multi-branch and multi-node to be compensated in the distribution network

an algorithm with minimum loss of reactive current is proposed to optimize the number and location of capacitors

on this basis

moreover combine with improved genetic algorithm

the accuracy and efficiency of reactive plan optimization is further improved.This method can not only reduce the invalid solution of the initial population and overcome the "curse of dimensionality"

but also avoid the premature and deception issues of the genetic algorithm.The effectiveness and practicality of the method have been demonstrated by the simulation calculation example.