In order to speed up the solving efficiency of the power supply restoration method of distribution network after failure

this paper presents a multi-period distributed power supply restoration method for distribution network based on improved alternating direction method of multipliers (ADMM). With the aim of maximizing load recovery and minimizing system loss after failure

a multi-period power supply restoration model of distribution network is established. Over-relaxation technology and dynamic adjustment of penalty parameters are introduced to improve ADMM

and a multi-period distributed power supply restoration method based on adaptive relaxation penalty parameters ADMM is proposed. Finally

an example analysis is carried out on the improved IEEE-33 bus system

and the results show that the adaptive relaxation penalty parameter ADMM presented in this paper has better distributed computing performance.