Research on maintenance schedule optimization of distribution network including distributed generation

There are more load transfer schemes can be formed when some device is in maintenance with distributed generation. Considering the effect of distributed generation, within a maintenance time period of a month, a multi-objective minimum optimization framework on distribution network maintenance scheduling for total outage capacity, total switching times, as well as total network loss is developed on constraints of mutually exclusive and simultaneous maintenance. In addition, the NSGA-II algorithm with multi-period overall coding is applied to solve the model and the optimal maintenance scheme of a month is chosen based on priority order of objective function. The example results prove the validity of the multi-objective model and the NSGA-II algorithm in maintenance schedule of distribution network.