DC BIDIRECTIONAL CHARGING AND DISCHARGING SYSTEM AND CONTROL METHOD THEREOF AND CHARGING PILLAR

The disclosure relates to charging and discharging technologies, and in particular to a DC bidirectional charging and discharging system, a control method thereof and a charging pillar. The system includes: first to X-th bidirectional DCDC modules; first to Y-th charging ports, a first series-parallel circuit, a second series-parallel circuit, and a controller, wherein the first side of the first series-parallel circuit is connected to the first side of the bidirectional DCDC modules, and the second side of the first series-parallel circuit is connected to the charging ports; the first side of the second series-parallel circuit is connected to the DC power grid, and the second side of the second series-parallel circuit is connected to the second side of the bidirectional DCDC modules; the controller is configured to control the first series-parallel circuit and the second series-parallel circuit.