Interconnection inverter device
First Claim
1. An interconnection inverter device for converting direct-current power fed from a direct-current power source to alternating-current power to interconnect to an electric power system, the interconnection inverter device comprising:
- first and second capacitors which are connected in series between a positive and a negative electrode of the direct-current power source and an interconnection point of which is connected to a first terminal of the electric power system;
a reactor with a first terminal connected to the interconnection point between the first capacitor and the second capacitor;
a first switch section with a first terminal connected to a positive electrode of the direct-current power source and a second terminal connected to a second terminal of the reactor;
a second switch section with a first terminal connected to a negative electrode of the direct-current power source and a second terminal connected to the second terminal of the reactor;
a third switch section with a first terminal connected to the second terminal of the reactor and a second terminal connected to a second terminal of the electric power system;
a fourth switch section with a first terminal connected to the second terminal of the reactor and a second terminal connected to the second terminal of the electric power system; and
a third capacitor connected, in parallel, to the first terminal and the second terminal of the electric power system.
1 Assignment
0 Petitions
Accused Products
Abstract
First and second capacitors are connected in series between positive/negative electrodes of a DC power source. A first terminal of a reactor and a first terminal of an electric power system are connected to the interconnection point between the first and second capacitors. A first switch section has first and second terminals respectively connected to the positive electrode of the DC power source and a second terminal of the reactor. A second switch section has first and second terminals respectively connected to the negative electrode of the DC power source and the second terminal of the reactor. A third switch section has first and second terminals respectively connected to the second terminal of the reactor and a second terminal of the electric power system. A fourth switch section has first and second terminals respectively connected to the second terminal of the reactor and the second terminal of the electric power system.
18 Citations
8 Claims
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1. An interconnection inverter device for converting direct-current power fed from a direct-current power source to alternating-current power to interconnect to an electric power system, the interconnection inverter device comprising:
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first and second capacitors which are connected in series between a positive and a negative electrode of the direct-current power source and an interconnection point of which is connected to a first terminal of the electric power system; a reactor with a first terminal connected to the interconnection point between the first capacitor and the second capacitor; a first switch section with a first terminal connected to a positive electrode of the direct-current power source and a second terminal connected to a second terminal of the reactor; a second switch section with a first terminal connected to a negative electrode of the direct-current power source and a second terminal connected to the second terminal of the reactor; a third switch section with a first terminal connected to the second terminal of the reactor and a second terminal connected to a second terminal of the electric power system; a fourth switch section with a first terminal connected to the second terminal of the reactor and a second terminal connected to the second terminal of the electric power system; and a third capacitor connected, in parallel, to the first terminal and the second terminal of the electric power system. - View Dependent Claims (6, 7, 8)
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2. An interconnection inverter device for converting direct-current power fed from a direct-current power source to alternating-current power to interconnect to an electric power system, the interconnection inverter device comprising:
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first and second capacitors which are connected in series between a positive and a negative electrode of the direct-current power source and an interconnection point of which is connected to a first terminal of the electric power system; a reactor with a first terminal connected to the interconnection point between the first capacitor and the second capacitor; a first switch section actuated when energy from the first capacitor is stored in the reactor; a second switch section actuated when energy from the second capacitor is stored in the reactor; a third switch section actuated when the energy stored in the reactor is supplied by the actuation of the first switch section to the electric power system; a fourth switch section actuated when the energy stored in the reactor is supplied by the actuation of the second switch section to the electric power system; and a third capacitor connected, in parallel, to the first terminal and a second terminal of the electric power system. - View Dependent Claims (3, 4, 5)
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Specification