System and method for managing cold load pickup using demand response
First Claim
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1. A method, comprising:
- estimating pickup load on a feeder in a distribution network;
determining a load limit on the feeder;
dividing load on the feeder into groups based upon the load limit of the feeder and based upon the estimated pickup load;
identifying a power restoration control process for restoring power to each of the groups; and
restoring power to each of the groups simultaneously based on the power restoration control process;
wherein identifying the power restoration control process comprises;
identifying pulse width modulation loads on the feeder operating using pulse width modulation;
controlling a saturation of the pulse width modulation loads; and
restoring power to the pulse width modulation loads using on/off modulation.
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Abstract
A system and method for simultaneously restoring power to loads in a distribution network that experienced an outage. The pickup load on the feeder in the distribution network is estimated and the load limit on the feeder is determined. The load on the feeder is divided into groups based on the load limit. A restoration load control process is determined, and power is restored to each of the groups simultaneously based on the power restoration control process.
15 Citations
24 Claims
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1. A method, comprising:
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estimating pickup load on a feeder in a distribution network; determining a load limit on the feeder; dividing load on the feeder into groups based upon the load limit of the feeder and based upon the estimated pickup load; identifying a power restoration control process for restoring power to each of the groups; and restoring power to each of the groups simultaneously based on the power restoration control process; wherein identifying the power restoration control process comprises; identifying pulse width modulation loads on the feeder operating using pulse width modulation; controlling a saturation of the pulse width modulation loads; and restoring power to the pulse width modulation loads using on/off modulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer-readable medium comprising computer-readable instructions of a computer program that, when executed by a processor, cause the processor to perform a method, comprising:
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estimating pickup load on a feeder in a distribution network; determining a load limit on the feeder; dividing load on the feeder into groups based upon the load limit of the feeder and based upon the estimated pickup load; identifying a power restoration control process for restoring power to each of the groups; and restoring power to each of the groups simultaneously based on the power restoration control process; wherein identifying the power restoration control process comprises; identifying pulse width modulation loads on the feeder operating using pulse width modulation; controlling a saturation of the pulse width modulation loads; and restoring power to the pulse width modulation loads using on/off modulation. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A system, comprising:
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loads connected to a utility network; and a power restoration module communicatively coupled to the loads and one or more utilities, wherein the power restoration module is configured to; estimate pickup load on a feeder in a distribution network; determine a load limit on the feeder, divide load on the feeder into groups based upon the load limit of the feeder and based upon the estimated pickup load; identify a power restoration control process for restoring power to each of the groups; restore power to each of the groups simultaneously based on the power restoration control process; wherein the power restoration module is further configured to; identify pulse width modulation loads on the feeder operating using pulse width modulation; control a saturation of the pulse width modulation loads; and restore power to the pulse width modulation loads using on/off modulation. - View Dependent Claims (22, 23, 24)
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Specification