Power Converter Circuit with AC Output
First Claim
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1. A power converter circuit, comprising:
- output terminals;
a plurality of converter units each comprising input terminals configured to be coupled to a DC power source, and output terminals for providing an AC output voltage and an AC output current, the plurality of converter units being connected in series between the output terminals of the power converter circuit,wherein at least one of the converter units is configured to detect its AC output voltage and its AC output current and is configured to regulate a generation of the AC output current such that a phase difference between the AC output current and the AC output voltage assumes a given set value.
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Abstract
A power converter circuit includes output terminals, and a plurality of converter units each comprising input terminals configured to be coupled to a DC power source, and output terminals for providing an AC output voltage and an AC output current. The plurality of converter units are connected in series between the output terminals of the power converter circuit. At least one of the converter units is configured to detect its AC output voltage and its AC output current and is configured to regulate a generation of the AC output current such that a phase difference between the AC output voltage and the AC output current corresponds to a given set value.
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Citations
26 Claims
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1. A power converter circuit, comprising:
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output terminals; a plurality of converter units each comprising input terminals configured to be coupled to a DC power source, and output terminals for providing an AC output voltage and an AC output current, the plurality of converter units being connected in series between the output terminals of the power converter circuit, wherein at least one of the converter units is configured to detect its AC output voltage and its AC output current and is configured to regulate a generation of the AC output current such that a phase difference between the AC output current and the AC output voltage assumes a given set value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A power supply system, comprising:
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output terminals configured to be coupled to a power grid; a plurality of converter units each comprising input terminals and output terminals for providing an AC output voltage and an AC output current, the plurality of converter units being connected in series between the output terminals of the power converter circuit; a plurality of DC voltage sources, each DC voltage source coupled to the input terminals of a respective one of the converter units; wherein at least one of the converter units is configured to detect its AC output voltage and its AC output current and is configured to regulate a generation of the AC output current such that a phase difference between the AC output current and the AC output voltage assumes a given set value. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A power converter unit, comprising:
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input terminals configured to be coupled to a DC power source; output terminals for providing an AC output voltage and an AC output current; wherein the power converter unit is configured to detect its AC output voltage and its AC output current and is configured to regulate a generation of the AC output current such that a phase difference between the AC output current and the AC output voltage assumes a given set value. - View Dependent Claims (20, 21, 22)
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23. A method for operating a power converter circuit, the power converter circuit comprising:
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output terminals configured to be coupled to a power grid; and a plurality of converter units each comprising input terminals configured to be coupled to a DC power source, and output terminals for providing an AC output voltage and an AC output current, the plurality of converter units being connected in series between the output terminals of the power converter circuit, the method comprising; detecting the AC output voltage and the AC output current of at least one of the converter units and regulating a generation of the AC output current such that a phase difference between the AC output current and the AC output voltage assumes a given set value. - View Dependent Claims (24, 25, 26)
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Specification