Grid-connected inverter system
AssigneeLs Electric Co., Ltd.
InventorKwang-Soo KOH
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Abstract
The grid-connected inverter system according to one embodiment of the present invention may convert direct current supplied from a direct current source into alternating current, receive a control command from an upper level controller and a power electronics building block group comprising a plurality of power electronics building blocks for supplying the converted alternating current to a grid, determine the number of power electronics building blocks which will operate according to the control command, and transmit a control signal for operating the determined number of power electronics building blocks to corresponding power electronics building blocks.
Claims15
A grid-connected inverter system comprising:
- a power electronics building block group including a plurality of power electronics building blocks, wherein each power electronics building block is configured to direct current (DC) power supplied from a DC power source is converted to alternating current (AC) power, and to supply the converted AC power to a grid;
- and
- a master controller configured to:
- receive a control command from a higher controller;
- determine a number of power electronics building blocks to be activated, based on the control command;
- and
- transmit a control signal triggering operations of the determined number of the power electronics building blocks thereto.
Dependencies are inferred from the claim text.