A New Power Flow Method For Mixed Ac-Dc Power Systems

This article presents a new tool to solve the power flow problem for electric mixed AC-DC grids. It is based on the fixed-point theorem of contractive function. This algorithm provides some advantages over classics methods, as for example the guarantee of converge, if some mild constraints are fulfilled, or fewer calculations in each iteration with respect other methods. Different devices, as for example AC/DC converters, DC/DC converters and AC transformer are contained in the formulation. The method is tested by means of a 14 nodes mixed AC-DC grid.