Power supply switching method and apparatus, and multi-power supply system
AssigneeGree Electric Appliances, Inc. of Zhuhai
InventorsMeng Huang, Zhiguo Xu, Yingyi Jiang, Pengliang Fu, Chunyang Song, Yusheng Qi
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Abstract
A power supply switching method and apparatus, and a multi-power supply system. The method is applied to a multi-power supply system which includes an alternating-current power supply, a direct-current power supply and an energy storage power supply. The method includes obtaining a power supply switching instruction, wherein the power supply switching instruction includes a power supply switching direction; and controlling, according to the power supply switching direction, the energy storage power supply to perform a voltage transition in the power supply switching process.
Claims17
A power supply switching method applied to a multi-power supply system, wherein the multi-power supply system comprises an alternating-current power supply, a direct-current power supply, and an energy storage power supply, and the method comprises:
- obtaining a power supply switching instruction, wherein the power supply switching instruction comprises a power supply switching direction;
- and
- controlling, according to the power supply switching direction, the energy storage power supply to perform a voltage transition in a power supply switching process,
- wherein in a case where the power supply switching direction is switching from the alternating-current power supply to the direct-current power supply, the controlling of the energy storage power supply to perform the voltage transition in the power supply switching process comprises:
- after obtaining the power supply switching instruction, controlling the energy storage power supply to be switched on and perform the voltage transition, comprising:
- controlling the energy storage power supply to be switched on and controlling a power supply voltage of the energy storage power supply to be a first preset voltage, wherein the first preset voltage is less than a preset direct-current bus voltage;
- and
- controlling the power supply voltage output by the energy storage power supply to gradually increase to a second preset voltage according to a preset step, wherein the second preset voltage is greater than the preset direct-current bus voltage and less than a power supply voltage of the direct-current power supply.
A power supply switching apparatus applied to a multi-power supply system, wherein the multi-power supply system comprises an alternating current power supply, a direct-current power supply, and an energy storage power supply, and the power supply switching apparatus comprises:
- a memory;
- and
- a processor coupled to the memory, wherein the processor is configured to, based on instructions stored in the memory, obtain a power supply switching instruction, wherein the power supply switching instruction comprises a power supply switching direction, and control, according to the power supply switching direction, the energy storage power supply to perform a voltage transition in a power supply switching process,
- wherein in a case where the power supply switching direction is switching from the alternating current power supply to the direct-current power supply, the processor is configured to:
- after obtaining the power supply switching instruction, control the energy storage power supply to be switched on and perform the voltage transition, which comprises:
- control the energy storage power supply to be switched on and control a power supply voltage of the energy storage power supply to be a first preset voltage, wherein the first preset voltage is less than a preset direct-current bus voltage;
- and
- control the power supply voltage output by the energy storage power supply to gradually increase to a second preset voltage according to a preset step, wherein the second preset voltage is greater than the preset direct-current bus voltage and less than a power supply voltage of the direct-current power supply.
A non-transitory computer-readable storage medium stored thereon a computer program that, applied to a multi-power supply system, wherein the multi-power supply system comprises an alternating-current power supply, a direct-current power supply, and an energy storage power supply, when executed by a processor, cause the processor to:
- obtain a power supply switching instruction, wherein the power supply switching instruction comprises a power supply switching direction;
- and
- control, according to the power supply switching direction, the energy storage power supply to perform a voltage transition in a power supply switching process,
- wherein in a case where the power supply switching direction is switching from the alternating-current power supply to the direct-current power supply, the computer program, when executed by the processor causes the processor to:
- after obtaining the power supply switching instruction, control the energy storage power supply to be switched on and perform the voltage transition, which comprises:
- control the energy storage power supply to be switched on and control a power supply voltage of the energy storage power supply to be a first preset voltage, wherein the first preset voltage is less than a preset direct-current bus voltage;
- and
- control the power supply voltage output by the energy storage power supply to gradually increase to a second preset voltage according to a preset step, wherein the second preset voltage is greater than the preset direct-current bus voltage and less than a power supply voltage of the direct-current power supply.
Dependencies are inferred from the claim text.