PHOTOVOLTAIC SYSTEM AND OPTIMIZER NETWORKING METHOD THEREOF

The present application provides a photovoltaic system and an optimizer networking method thereof. The optimizer networking method comprises: first, an inverter sets for each optimizer an output voltage limit value and/or an output current limit value; and then the inverter controls each optimizer to be started, and then, according to a preset rule, controls input ends of corresponding Boost circuits to separately keep a short-circuited state for a preset duration. When the input end of a different Boost circuit is in the short-circuited state, only a photovoltaic string connected to the input end of the corresponding Boost circuit is short-circuited, so that an optimizer having changed output electrical parameters is an optimizer in the corresponding photovoltaic string, and thus an optimizer connected to the input end of each Boost circuit can be determined, thereby achieving automatic networking of optimizers connected in a photovoltaic system, and avoiding problems of errors being liable to occur and low