Connection of converters to a low and medium power DC network using an inductor circuit

This letter describes an alternative for the connection of power converters to a direct current network without the installation of a capacitor in the DC-Link. The circuit allows the connection of converters through a coil and avoids short-circuit currents with different instantaneous values of voltage output. A description of the calculation and the choice of components together with a real implemented example in a DC network within Smart City project (Endes Utility) is presented.