A mixed integer linear programming model for minimum backbone grid

Developing a minimum backbone grid in the power system planning is beneficial to improve system’s resilience. To obtain grid, mixed integer linear programming (MILP) model with network connectivity constraints for proposed. In model, some are presented consider practical application requirements. Especially, avoid islands set of based on single-commodity flow formulations proposed ensure grid. The simulations IEEE-39 bus and French 1888 show that can be solved higher computational efficiency only about 30 min such large has small scale 52% original Compared improved fireworks method, from method fewer lines generators.