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OwnerMingquan ZHAO, Zhangping SHAO +1inventors
InventorsMingquan ZHAO, Zhangping SHAO, Haibin GUO
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Embodiments of this application provide a direct current bus voltage control method and apparatus, and a power system, and relate to the field of electric power technologies, to quickly identify a voltage between an inverter circuit and an alternating current grid, so as to timely control a voltage of a direct current bus, thereby improving stability of the power system. The method includes: obtaining an electrical parameter between the conversion circuit and the direct current bus; generating a predicted voltage between the inverter circuit and the alternating current grid based on the electrical parameter and a voltage prediction model; and controlling a voltage between the conversion circuit and the direct current bus based on the predicted voltage.
A direct current bus voltage control method, applied to a power system, wherein the power system comprises a conversion circuit, a direct current bus, and an inverter circuit, and the direct current bus is connected to the conversion circuit and the inverter circuit;
A direct current bus voltage control apparatus, used in a power system, wherein the power system comprises a conversion circuit, a direct current bus, and an inverter circuit, and the direct current bus is connected to the conversion circuit and the inverter circuit;
An inverter, comprising an inverter circuit, a conversion circuit, and a direct current bus, wherein the conversion circuit is connected to the inverter circuit through the direct current bus, the conversion circuit is connected to a direct current source, the inverter circuit is connected to an alternating current grid, and the inverter further comprises the direct current bus voltage control apparatus, wherein the direct current bus voltage control apparatus, used in a power system, wherein the power system comprises a conversion circuit, a direct current bus, and an inverter circuit, and the direct current bus is connected to the conversion circuit and the inverter circuit;
A conversion device, comprising a conversion circuit and the direct current bus voltage control apparatus, wherein the conversion circuit is connected to an inverter circuit by using a direct current bus, the conversion circuit is connected to a direct current source, and the inverter circuit is connected to an alternating current grid, wherein the direct current bus voltage control apparatus, used in a power system, wherein the power system comprises a conversion circuit, a direct current bus, and an inverter circuit, and the direct current bus is connected to the conversion circuit and the inverter circuit;
A combiner box, comprising a conversion circuit and the direct current bus voltage control apparatus, wherein the conversion circuit is connected to an inverter circuit by using a direct current bus, the conversion circuit is connected to a direct current source, and the inverter circuit is connected to an alternating current grid, wherein the direct current bus voltage control apparatus, used in a power system, wherein the power system comprises a conversion circuit, a direct current bus, and an inverter circuit, and the direct current bus is connected to the conversion circuit and the inverter circuit;
A power system, comprising a voltage converter, a direct current bus, and an inverter circuit, wherein the direct current bus is connected to a conversion circuit and the inverter circuit, the conversion circuit is connected to a direct current source, and the inverter circuit is connected to an alternating current grid;
Dependencies are inferred from the claim text.