Patent ID: 11881815
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The method of claim 1, after the corresponding connection relations between all RSDs and all photovoltaic module strings are determined, the method further comprises:
step S6 for turning off all RSDs and sampling a voltage of each input end of each of the at least one inverter as a third voltage;
step S7 for turning on all RSDs in any one of the photovoltaic module strings of the photovoltaic inverter system, sampling a voltage of each input end of each of the at least one inverter as a fourth voltage, and determining the inverter and the relation between the input end of the inverter and the photovoltaic module string having all RSDs in the turned-on state according to the third voltage and the fourth voltage of each input end of each of the at least one inverter; and
step S8 for repeating steps S6 and S7 for any one of the photovoltaic module strings except the photovoltaic module string connected to the determined inverter and the determined input end of the inverter until corresponding connection relations of all photovoltaic module strings with the inverter and the input end of the inverter are determined.