Reducing demand/response effects implementing volt/VAR control
First Claim
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1. A method for reducing effects of a demand/response event in a power distribution network, the method comprising:
- identifying a load profile in the power distribution network;
in response to detecting a peak in the load profile, decreasing voltage in the power distribution network;
in response to detecting a trough in the load profile, increasing the voltage in the power distribution network; and
performing power cycling of a capacitor bank of the power distribution network by controlling a coordinated power cycling of inductive appliances to accomplish the decreasing of the voltage in response to detecting the peak, and the increasing of the voltage in response to detecting the trough, wherein the coordinated power cycling of inductive appliances comprises;
estimating a voltage-ampere-reactive (VAR) power generated by each inductive appliance over a predetermined period of time when each inductive appliance is power cycled, wherein the predetermined period of time is determined from historical data associated with a previous occurrence of the demand/response event;
scheduling power cycling for each appliance based at least in part on the estimated VAR power generated by each inductive appliance; and
based on the scheduling, selectively providing VAR support by power cycling each inductive appliance to regulate the voltage in the power distribution network.
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Abstract
A method for reducing the effects of a demand/response event in a power distribution network can include identifying a load profile in the power distribution network, in response to detecting a peak in the load profile, decreasing the voltage in the power distribution network and, in response to detecting a trough in the load profile, increasing the voltage in the power distribution network.
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Citations
18 Claims
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1. A method for reducing effects of a demand/response event in a power distribution network, the method comprising:
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identifying a load profile in the power distribution network; in response to detecting a peak in the load profile, decreasing voltage in the power distribution network; in response to detecting a trough in the load profile, increasing the voltage in the power distribution network; and performing power cycling of a capacitor bank of the power distribution network by controlling a coordinated power cycling of inductive appliances to accomplish the decreasing of the voltage in response to detecting the peak, and the increasing of the voltage in response to detecting the trough, wherein the coordinated power cycling of inductive appliances comprises; estimating a voltage-ampere-reactive (VAR) power generated by each inductive appliance over a predetermined period of time when each inductive appliance is power cycled, wherein the predetermined period of time is determined from historical data associated with a previous occurrence of the demand/response event; scheduling power cycling for each appliance based at least in part on the estimated VAR power generated by each inductive appliance; and based on the scheduling, selectively providing VAR support by power cycling each inductive appliance to regulate the voltage in the power distribution network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer program product for reducing effects of a demand/response event in a power distribution network, the computer program product including a non-transitory computer readable medium having instructions for causing a computer to implement a method, the method comprising:
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identifying a load profile in the power distribution network; in response to detecting a peak in the load profile, decreasing voltage in the power distribution network; in response to detecting a trough in the load profile, increasing the voltage in the power distribution network; and performing power cycling of a capacitor bank of the power distribution network by controlling a coordinated power cycling of inductive appliances to accomplish the decreasing of the voltage, in response to detecting the peak, and the increasing of the voltage, in response to detecting the trough, wherein the coordinated power cycling of inductive appliances comprises; estimating a voltage-ampere-reactive (VAR) power generated by each inductive appliance over a predetermined period of time when each inductive appliance is power cycled, wherein the predetermined period of time is determined from historical data associated with a previous occurrence of the demand/response event; scheduling power cycling for each appliance based at least in part on the estimated VAR power generated by each inductive appliance; and based on the scheduling, selectively providing VAR support by power cycling each inductive appliance to regulate the voltage in the power distribution network. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification