US Patent 11362525 Full direct-current boost/buck power transmission system and method

A full DC buck-boost power transmission system comprises at least one DC power supply, at least one boost station, a high-voltage cable and at least one buck station connected in sequence. The boost station includes a first battery pack unit, and the buck station includes a second battery pack unit. The DC power supply, the boost station, the high-voltage cable and the buck station cooperate with each other, and the connection modes of the first battery pack unit and the second battery pack unit can be switched, so that the first battery pack unit and the second battery pack unit undergo the process of charging and discharging in different connection modes, realizing the storage, boost, transmission, buck and supply of the DC power.