Systems to Connect Multiple Direct Current Energy Sources to an Alternating Current System
First Claim
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1. A system, comprising:
- a plurality of direct current modules having variable direct current inputs;
an inverter; and
a direct current bus to connect the direct current modules to the inverter, the bus being configured to operate at a nominal voltage higher than 100 volts and to operate within 10 percent of the nominal operating voltage.
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Abstract
High voltage direct current systems to connect direct current energy sources to an alternating current system. In one aspect, a system includes a plurality of direct current modules having variable direct current inputs; an inverter; and a direct current bus to connect the direct current modules to the inverter, where the bus is configured to operate at a nominal voltage higher than 100 volts and to operate within 10 percent of the nominal operating voltage.
243 Citations
20 Claims
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1. A system, comprising:
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a plurality of direct current modules having variable direct current inputs; an inverter; and a direct current bus to connect the direct current modules to the inverter, the bus being configured to operate at a nominal voltage higher than 100 volts and to operate within 10 percent of the nominal operating voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An energy system, comprising:
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a direct current bus; a plurality of photovoltaic panels; a plurality of direct current modules coupled between the plurality of photovoltaic panels and the bus; and an inverter coupled between the bus and a power grid, wherein the bus is configured to operate at a voltage higher than 200 voltages and to operate within 4 percent of a nominal voltage of the bus even when a current supplied by the photovoltaic panels is reduced to a level to power the inverter without substantial output to the power grid. - View Dependent Claims (20)
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Specification