Power Supply System

A power supply system includes a bypass branch, at least two energy storage branches, and a controller. An input of the bypass branch is configured to connect to a power supply, and an output of the bypass branch is configured to supply power to a load. An output of each energy storage branch is configured to connect the load to the output of the bypass branch. Each energy storage branch includes an energy storage unit and a bidirectional inverter unit, and the bidirectional inverter unit is configured to, when the energy storage branch operates in a charging mode, convert an alternating current provided by the bypass branch into a direct current and output the direct current to the energy storage unit. The bidirectional inverter unit is also configured to, when the energy storage branch operates in a discharging mode, convert a direct current provided by the energy storage unit into an alternating current.