Non-intrusive electrical load monitoring
First Claim
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1. A method of non-intrusive electrical load monitoring of an electrical distribution system, comprising:
- monitoring a main power line of the electrical distribution system to determine a set of electrical characteristics of the electrical distribution system;
receiving a set of state information for a plurality of individual loads of the electrical distribution system;
determining energy consumption characteristics for the plurality of individual loads based upon the set of electrical characteristics and the set of state information;
monitoring the main power line of the electrical distribution system for a known carrier waveform;
receiving the carrier waveform in response to the monitoring; and
demodulating the carrier waveform to extract the set of state information.
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Abstract
A method of non-intrusive electrical load monitoring of an electrical distribution system includes monitoring a main power line of the electrical distribution system to determine a set of electrical characteristics of the electrical distribution system, receiving a set of state information for a plurality of individual loads of the electrical distribution system, and determining energy consumption characteristics for the plurality of individual loads based upon the set of electrical characteristics and the set of state information.
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Citations
19 Claims
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1. A method of non-intrusive electrical load monitoring of an electrical distribution system, comprising:
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monitoring a main power line of the electrical distribution system to determine a set of electrical characteristics of the electrical distribution system; receiving a set of state information for a plurality of individual loads of the electrical distribution system; determining energy consumption characteristics for the plurality of individual loads based upon the set of electrical characteristics and the set of state information; monitoring the main power line of the electrical distribution system for a known carrier waveform; receiving the carrier waveform in response to the monitoring; and demodulating the carrier waveform to extract the set of state information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of electrical load monitoring of an individual load arranged within an electrical distribution system, comprising:
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detecting, at an inductive coupler arranged in an area proximate a power line supplying power to the individual load, electromagnetic flux indicative of a current associated with the individual load; assembling a carrier waveform to include information about the current; and injecting into the power line, using the inductive coupler, the assembled carrier waveform. - View Dependent Claims (9, 10)
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11. An electrical distribution system, comprising:
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a main power line; a main electrical load monitor in communication with the main power line; a first electrical circuit branch in communication with the electrical load monitor and the main power line, the first electrical circuit branch distributing electrical power from the main power line to an associated load; and a first individual electrical load monitor proximate the first electrical circuit branch, wherein the first individual electrical load monitor is configured to remotely sense a current flow in the first circuit branch, wherein the first individual electrical load monitor is configured to assemble a carrier waveform signal including information regarding the current flow in response to the current flow, wherein the first electrical load monitor is configured to inject the assembled carrier waveform into the first electrical circuit branch. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification