Control device for distributed generators
First Claim
1. A control device for a plurality of distributed generators connected to a main grid, the control device comprising:
- a load power measuring unit measuring power consumption of loads connected to the plurality of distributed generators;
a distributed generator power measuring unit measuring power output from the plurality of distributed generators;
a power flow reference value determining unit determining a power flow reference value of a power line connected to the main grid based on the power consumption and the power output from the plurality of distributed generators; and
a mode control unit changing an operation mode of at least one of the plurality of distributed generators such that a flow power of the power line connected to the main grid maintains the power flow reference value,wherein the plurality of distributed generators operate in a first mode in which the flow power of the power line is constantly maintained, or in a second mode in which the power output from the plurality of distributed generators are constantly maintained, andwherein, when the determined power flow reference value exceeds a maximum value, the power flow reference value determining unit changes the power flow reference value to the maximum value.
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Accused Products
Abstract
A control device for a plurality of distributed generators connected to a main grid, the control device including a load power measuring unit measuring power consumption of loads connected to the plurality of distributed generators, a distributed generator power measuring unit measuring power output from the plurality of distributed generators, a power flow reference value determining unit determining a power flow reference value of a power line connected to the main grid based on the power consumption and the power output from the plurality of distributed generators, and a mode control unit changing an operation mode of one of the plurality of distributed generators such that a flow power of the power line connected to the main grid maintains the power flow reference value.
19 Citations
16 Claims
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1. A control device for a plurality of distributed generators connected to a main grid, the control device comprising:
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a load power measuring unit measuring power consumption of loads connected to the plurality of distributed generators; a distributed generator power measuring unit measuring power output from the plurality of distributed generators; a power flow reference value determining unit determining a power flow reference value of a power line connected to the main grid based on the power consumption and the power output from the plurality of distributed generators; and a mode control unit changing an operation mode of at least one of the plurality of distributed generators such that a flow power of the power line connected to the main grid maintains the power flow reference value, wherein the plurality of distributed generators operate in a first mode in which the flow power of the power line is constantly maintained, or in a second mode in which the power output from the plurality of distributed generators are constantly maintained, and wherein, when the determined power flow reference value exceeds a maximum value, the power flow reference value determining unit changes the power flow reference value to the maximum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A control method of a control device for controlling a plurality of distributed generators connected to a main grid, the control method comprising:
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measuring, by the control device, power consumption of loads connected to the plurality of distributed generators; measuring, by the control device, power output from the plurality of distributed generators; determining, by the control device, a power flow reference value of a power line connected to the main grid based on the power consumption and the power output from the plurality of distributed generators; and changing, by the control device, an operation mode of at least one of the plurality of distributed generators such that a flow power of the power line connected to the main grid maintains the power flow reference value, wherein the operation mode comprises either a first mode in which the flow power of the power line connected to the main grid is constantly maintained, or a second mode in which the power output from the plurality of distributed generators are constantly maintained, and wherein the determining of the power flow reference value of the power line comprises changing the power flow reference value to a maximum value when the determined power flow reference value exceeds the maximum value. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification