Patent ID: 11894686
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. The method according to claim 1, further comprising:
obtaining a load power consumption; and
performing the following:
when the load power consumption is less than or equal to a power of a solar power supply, controlling a photovoltaic-direct current conversion circuit to be connected to the solar power supply;
when the load power consumption is greater than the power of the solar power supply and the load power consumption is less than or equal to a power of a mains, controlling an alternating current-direct current conversion circuit to be connected to a mains power;
when the load power consumption is greater than the power of the mains and the load power consumption is less than or equal to a first power, controlling a photovoltaic-direct current conversion circuit to be connected to the solar power supply and controlling the alternating current-direct current conversion circuit to be connected to the mains power, wherein the first power is equal to a sum of the power of the mains and the power of the solar power supply; or
when the load power consumption is greater than the first power and less than a second power, controlling the photovoltaic-direct current conversion circuit to be connected to the solar power supply, controlling the alternating current-direct current conversion circuit to be connected to the mains power, and controlling a direct current conversion circuit to be connected to a high-voltage direct current power, wherein the second power is equal to a sum of the power of the mains, the power of the solar power supply, and a power of the high-voltage direct current power.