Controller and method of controlling power supplied from a small power source to a power grid
AssigneeEaton Intelligent Power Limited
InventorsYigang Wang, Roger Wayne Rognli
Life of this patent
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Abstract
A controller and method are usable to control the provision of electrical power from a local electrical network to a power grid. If it is determined that changes in the power grid voltage are correlated with the provision of power to the power grid, the power that is being provided to the power grid is manipulated so that the rate of change of the wattage that is provided to the power grid does not exceed a predetermined ramp rate. Such a manipulation is accomplished by adjusting an operational parameter of one or more electrical loads that are connected with the local electrical network.
Claims16
A method of controlling the provision of electrical power from a local electrical network to a power grid, the local electrical network including a power source that generates power and a number of electrically connected loads that consume power, the method comprising:
- determining that the power that is generated by the power source and that is unused by the number of loads is of an amount whose rate of change exceeds a predetermined rate;
- and
- responsive to the determining, adjusting an operational parameter of at least a first load of the number of loads from a first state to a second state to alter the rate of change in the amount.
A controller structured to be electrically connected with a local electrical network, the local electrical network including a power source that generates power and a number of electrically connected loads that consume power, the controller being further structured to control the provision of electrical power from the local electrical network to a power grid, the controller comprising:
- a processor apparatus comprising a processor and a memory;
- an input apparatus structured to provide input signals to the processor apparatus;
- and
- an output apparatus structured to receive output signals from the processor apparatus;
- the memory having stored therein a number of routines which, when executed on the processor, cause the controller to perform operations comprising:
- determining that the power that is generated by the power source and that is unused by the number of loads is of an amount whose rate of change exceeds a predetermined rate, and
- responsive to the determining, adjusting an operational parameter of at least a first load of the number of loads from a first state to a second state to alter the rate of change in the amount.
Dependencies are inferred from the claim text.