DISTRIBUTED POWER SUPPLY SYSTEM AND CONTROL METHOD

The embodiments of the present application relate to the field of power supply. Provided are a distributed power supply system and a control method. The system comprises a battery management system and M battery units, wherein the battery unit comprises a battery management unit and a cell. The battery management system is used for communicating with M battery management units to obtain M pieces of state information, and sending, according to the M pieces of state information, an instruction to a target battery management unit in the M battery management units, wherein the target battery management unit is used for controlling, according to the instruction, the voltage equalization of a battery unit where the target battery unit is located. In the embodiments of the present application, voltage equalization can be realized by using a battery management unit in each battery unit, thereby facilitating the increase or decrease of battery units; and continuous power supply can also be realized when voltage equali