Distributed stochastic techniques for maintaining a nominal alternating current frequency in an alternating current electrical power grid
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsGuanyu Tian, Qun Zhou Sun
Life of this patent
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Abstract
Techniques for stochastic control of at least one load is provided. Electric power generators provide alternating current (AC) to a plurality of consumer premises (CP). Each CP has one or more loads configured to be electrically powered by the AC. The stochastic control is performed at each consumer premises in a distributed manner. The stochastic control is used to maintain or increase the frequency of the AC provided by an AC electrical power distribution grid when such AC frequency falls below a nominal AC frequency of the AC electrical power distribution grid.
Claims20
A method for stochastically determining whether to reduce alternating current (AC) provided to a load, comprising:
- receiving a frequency of the AC;
- receiving or generating a random number;
- determining a probability threshold or a function of the probability threshold, wherein the probability threshold is a function of a difference between the frequency of the AC and a nominal frequency rating of an AC electrical power grid configured to provide AC to the load;
- determining whether (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold;
- and
- determining that (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold, then transmitting an AC reduction signal configured to cause the AC drawn by the load to be reduced for a first time period.
A non-transitory computer readable medium storing a program causing at least one processor to execute a process to stochastically determine whether to reduce alternating current (AC) provided to a load, the process comprising:
- receiving a frequency of the AC;
- receiving or generating a random number;
- determining a probability threshold or a function of the probability threshold, wherein the probability threshold is a function of a difference between the frequency of the AC and a nominal frequency rating of an AC electrical power grid configured to provide AC to the load;
- determining whether (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold;
- and
- determining that (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold, then transmitting an AC reduction signal configured to cause the AC drawn by the load to be reduced for a first time period.
An apparatus which stochastically determines whether to reduce alternating current (AC) provided to a load, the apparatus comprising:
- communications circuitry configured to receive a frequency of the AC;
- and
- processing circuitry, communicatively coupled to the communications circuitry, and configured to perform a process comprising:
- receiving the frequency of the AC;
- receiving or generating a random number;
- determining a probability threshold or a function of the probability threshold, wherein the probability threshold is a function of a difference between the frequency of the AC and a nominal frequency rating of an AC electrical power grid configured to provide the AC to the load;
- determining whether (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold;
- and
- determining that (a) the frequency of the AC is less than the nominal frequency rating and (b) the random number is less than respectively the probability threshold or the function of the probability threshold, then causing the communications circuitry to transmit an AC reduction signal configured to cause the AC drawn by the load to be reduced for a first time period.
Dependencies are inferred from the claim text.