A power generation system, comprising a plurality of power converters (102, 102a) and an inverter (110, 110a), an input end of each power converter (102, 102a) configured to being connected to at least one solar panel or at least one battery, an output end of each power converter (102, 102a) connected to an input end of the inverter (110, 110a) in series and in parallel, the inverter (110, 110a) being configured to convert a direct current that is input from the converters (104, 104a) into an alternating current for power supply, and the inverter (110, 110a) comprises: a control apparatus, configured to control the inverter (110, 110a) to convert the direct current that is input from the power converters (102, 102a) into the alternating current for power supply; and a communications apparatus, coupled to the control apparatus, and configured to: send a networking information request signal to the power converters (102, 102a) in the power generation system through a direct-current power line that transmits the direct current in the power generation system, wherein a frequency of the networking information request signal is within a first frequency band, and the networking information request signal is used to request networking information required for networking between the inverter (110, 110a) and the power converters (102, 102a); receive the networking information from the power converters (102, 102a) through the direct-current power line; and send a control signal to the power converters (102, 102a) through the direct-current power line, wherein a frequency of the control signal is within a second frequency band, and the control signal is used to control an operating parameter of the power converters (102, 102a) and the first frequency band is lower than the second frequency band. a control apparatus, configured to control the inverter (110, 110a) to convert the direct current that is input from the power converters (102, 102a) into the alternating current for power supply; and a communications apparatus, coupled to the control apparatus, and configured to: send a networking information request signal to the power converters (102, 102a) in the power generation system through a direct-current power line that transmits the direct current in the power generation system, wherein a frequency of the networking information request signal is within a first frequency band, and the networking information request signal is used to request networking information required for networking between the inverter (110, 110a) and the power converters (102, 102a); receive the networking information from the power converters (102, 102a) through the direct-current power line; and send a control signal to the power converters (102, 102a) through the direct-current power line, wherein a frequency of the control signal is within a second frequency band, and the control signal is used to control an operating parameter of the power converters (102, 102a) and the first frequency band is lower than the second frequency band. send a networking information request signal to the power converters (102, 102a) in the power generation system through a direct-current power line that transmits the direct current in the power generation system, wherein a frequency of the networking information request signal is within a first frequency band, and the networking information request signal is used to request networking information required for networking between the inverter (110, 110a) and the power converters (102, 102a); receive the networking information from the power converters (102, 102a) through the direct-current power line; and send a control signal to the power converters (102, 102a) through the direct-current power line, wherein a frequency of the control signal is within a second frequency band, and the control signal is used to control an operating parameter of the power converters (102, 102a) and the first frequency band is lower than the second frequency band.