Direct current transmission and distribution system and method of operating the same

A direct current (DC) transmission and distribution (T&D) system (300) includes a plurality of DC-to-DC converter devices (310) defining a plurality of isolatable portions of the DC T&D system (300). The DC T&D system (300) also includes a DC T&D control system (200) coupled to the DC-to-DC converter devices (310). The DC T&D control system includes a plurality of current sensors (334). At least one of the current sensors is positioned at one of the DC-to-DC converter devices. The current sensor is configured to transmit signals representative of a value of DC electric current transmission through the DC-to-DC converter device. The DC T&D control system (200) also includes a plurality of processors (336). At least one processor (336) is coupled to the current sensor (334) and the DC-to-DC converter device (310). The processor (336) is configured to regulate DC current transmission through the DC-to-DC converter device (310) as a function of the value of DC current transmission through the DC-to-DC converter device (310).