Power control device
First Claim
1. A method for regulating an electrical consumption of an equipment unit that is supplied with electrical energy by an AC power grid, the AC power grid being characterized by a dynamic state of balance between power generation and load, the method comprising:
- a. providing a power control device for managing the electrical consumption of the equipment unit;
b. sensing, with the power control device at a location that is proximate to the equipment unit, a frequency of the electrical energy supplied by the AC power grid to the equipment unit;
c. determining, by the power control device, a difference between the frequency of the electrical energy and a nominal frequency;
d. determining an occurrence of a power generation deficit in the AC power grid when the difference between the frequency of the electrical energy and the nominal frequency exceeds a threshold;
e. in response to detection of the power generation deficit within the AC power grid, implementing a power control function which includes reducing a consumption of electrical energy by the equipment unit to lessen the power generation deficit within the AC power grid, including varying the consumption by the equipment unit in a manner proportional to the difference between the frequency of the electrical energy and the nominal frequency;
f. receiving, by the power control device over a communication network from an external entity, a command signal to prevent the power control device from triggering the power control function; and
g. in response to receiving the command signal, by the power control device from the external entity, and determining, by the power control device, that a power generation deficit occurs in the AC power grid;
precluding, by the power control device, implementation of the power control function including a reduction of the electrical consumption by the equipment unit.
3 Assignments
0 Petitions
Accused Products
Abstract
A power control device for use in an AC power grid for regulating an electrical power a load that is supplied by the AC power grid consumes. The power control device has a frequency sensing functional block for detecting a rate of deviation of the grid frequency from a nominal grid frequency and a logic functional block for performing a load shedding process during which the power the load consumes is reduced. The load shedding process is characterized by parameters, the logic functional block controlling one or more parameters of the load shedding process at least in part on the basis of the rate of deviation of the grid frequency.
-
Citations
11 Claims
-
1. A method for regulating an electrical consumption of an equipment unit that is supplied with electrical energy by an AC power grid, the AC power grid being characterized by a dynamic state of balance between power generation and load, the method comprising:
-
a. providing a power control device for managing the electrical consumption of the equipment unit; b. sensing, with the power control device at a location that is proximate to the equipment unit, a frequency of the electrical energy supplied by the AC power grid to the equipment unit; c. determining, by the power control device, a difference between the frequency of the electrical energy and a nominal frequency; d. determining an occurrence of a power generation deficit in the AC power grid when the difference between the frequency of the electrical energy and the nominal frequency exceeds a threshold; e. in response to detection of the power generation deficit within the AC power grid, implementing a power control function which includes reducing a consumption of electrical energy by the equipment unit to lessen the power generation deficit within the AC power grid, including varying the consumption by the equipment unit in a manner proportional to the difference between the frequency of the electrical energy and the nominal frequency; f. receiving, by the power control device over a communication network from an external entity, a command signal to prevent the power control device from triggering the power control function; and g. in response to receiving the command signal, by the power control device from the external entity, and determining, by the power control device, that a power generation deficit occurs in the AC power grid; precluding, by the power control device, implementation of the power control function including a reduction of the electrical consumption by the equipment unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification