  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.
