System and method for determining harmonic contributions from non-linear loads
First Claim
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1. A method for determining harmonics caused by non-linear loads, comprising:
- metering voltage on an electric power system;
metering current on the electric power system;
determining a predicted current based upon the metered voltage;
comparing the predicted current with the metered current; and
determining a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current.
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Abstract
A system and method for determining harmonics caused by non-linear loads are disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system; metering current on the electric power system; determining a predicted current based upon the metered voltage; comparing the predicted current with the metered current; and determining a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current.
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Citations
28 Claims
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1. A method for determining harmonics caused by non-linear loads, comprising:
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metering voltage on an electric power system;
metering current on the electric power system;
determining a predicted current based upon the metered voltage;
comparing the predicted current with the metered current; and
determining a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system that determines harmonics caused by non-linear loads, comprising:
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an artificial neural network configured to receive information corresponding to metered voltage, to train itself such that a predicted current is determined which converges with a metered current, and to determine a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current; and
a processor configured to execute the artificial neural network. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for determining harmonics caused by non-linear loads, comprising:
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means for receiving metered voltage from an electric power system;
means for receiving metered current from the electric power system;
means for determining a predicted current based upon the metered voltage;
means for comparing the predicted current with the metered current; and
means for determining a harmonic current component a plurality of weights determined when the predicted current converges with the metered current. - View Dependent Claims (18, 19, 20, 21)
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22. A program for determining harmonics caused by non-linear loads stored on computer-readable medium, the program comprising:
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logic configured to receive information corresponding to a metered voltage from an electric power system;
logic configured to receive information corresponding to a metered current on the electric power system;
logic configured to determine a predicted current based upon the metered voltage; and
logic configured to determining a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current - View Dependent Claims (23, 24, 25)
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26. An artificial neural network that determines harmonics caused by non-linear loads, comprising:
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a training artificial neural network that determines a predicted current from a metered voltage, and that determines a plurality of weights when the predicted current converges with a metered current; and
an estimating artificial neural network that determines a harmonic current component using the determined weights received from the training artificial neural network. - View Dependent Claims (27, 28)
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Specification