Coordinated AC/DC Microgrid Optimal Scheduling
For microgrid operators, this work provides a computationally efficient method for optimal scheduling of hybrid AC/DC systems, though the improvements are incremental.
This paper proposes a coordinated optimal scheduling model for hybrid AC/DC microgrids to minimize total operation cost, using a linearized power flow model to enable MILP formulation. The model is tested on the modified IEEE 33-bus system, demonstrating cost savings and sensitivity to operational parameters.
This paper proposes a coordinated optimal scheduling model for hybrid AC/DC microgrids. The objective of the proposed model is to minimize the total microgrid operation cost when considering interactions between AC and DC sub-systems of the microgrid network. Nonlinear power flow equations for AC and DC networks have been linearized through a proposed model to enable formulating the problem by mixed integer linear programming (MILP) which expedites the solution process and ensures better solutions in terms of optimality. The proposed model is tested on the modified IEEE 33-bus test system. Numerical simulations exhibit the merits of the proposed coordinated AC/DC optimal scheduling model and further analyze its sensitivity to various decisive operational parameters.