Optimal Scheduling of Shore Power System Based on Equivalent Relaxation and Alternating Direction Multiplier Method
The electrical parameters of the shore power system(SPS)change frequently under different mooring modes.And the objective function is non-smooth,constraints are nonlinear and non-convexity in the optimal energy scheduling.The equiva-lent relaxation is achieved by introducing auxiliary variables for the objective.Semi-positive definite(SPD)programming and alternating direction method of multiplier(ADMM)are adopted to realize the optimal dispatching of ships in different wiring to satisfy the safety and economic running.Numerical results confirm that the proposed algorithm has significant advantages in terms of operation feedback,and has outstanding performance in the conditions of the SPS under the coexistence of the two modes of radial connection and multi ship parallel connection,and has good practicability for the realistic scenario of coexistence of heterogeneous SPS.
shore power systemalternating direction method of multipliersemi-positive definiteequivalent relaxation