System, method, and apparatus for grid location
AssigneesAstrolink International LLC, Dominion Energy Technologies, Inc.
InventorsJerritt Harold Hansell, Alan Drew Barnett, Joseph Robert Reed, Henrik Fernand Bernheim
Life of this patent
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Abstract
A computer system at a substation of an electrical grid examines on-grid communication channels and for very channel, the system compares and correlates a GLA signal provided by a downstream transmitter on that channel to a reference GLA signal. The channel that provided the signal with the best correlation is mostly likely the channel with the transmitter. Thus, the feeder and phase of the signal can be determined from the correlation of signals.
Claims14
A method for determining a phase line on which a transmitter is transmitting, comprising:
- generating, by a processing system comprising a processing device, a reference signal;
- monitoring, by the processing system, a plurality of power distribution phase lines for transmitted signals transmitted by respective transmitters of a plurality of transmitters coupled to the plurality of power distribution phase lines, subsets of the plurality of power distribution phase lines composing a plurality of corresponding feeder lines such that each feeder line of the plurality of corresponding feeder lines comprises a corresponding subset of power distribution phase lines of the plurality of power distribution phase lines;
- detecting, on a first power distribution phase line of the plurality of power distribution phase lines, a transmitted signal transmitted by one transmitter of the plurality of transmitters;
- detecting, on a second power distribution phase line of the plurality of power distribution phase lines, the transmitted signal transmitted by the one transmitter;
- correlating the transmitted signal detected on the first power distribution phase line and the transmitted signal detected on the second power distribution phase line with the reference signal;
- and
- determining that the one transmitter transmitted the transmitted signal on the first power distribution phase line and not on the second power distribution phase line.
A receiver for determining a phase line on which a transmitter is transmitting, comprising:
- a memory;
- and
- a processor device coupled to the memory and configured to:
- generate a reference signal;
- monitor a plurality of power distribution phase lines for transmitted signals transmitted by respective transmitters of a plurality of transmitters coupled to the plurality of power distribution phase lines, subsets of the plurality of power distribution phase lines composing a plurality of corresponding feeder lines such that each feeder line of the plurality of corresponding feeder lines comprises a corresponding subset of power distribution phase lines of the plurality of power distribution phase lines;
- detect, on a first power distribution phase line of the plurality of power distribution phase lines, a transmitted signal transmitted by one transmitter of the plurality of transmitters;
- detect, on a second power distribution phase line of the plurality of power distribution phase lines, the transmitted signal transmitted by the one transmitter;
- correlate the transmitted signal detected on the first power distribution phase line and the transmitted signal detected on the second power distribution phase line with the reference signal;
- and
- determine that the one transmitter transmitted the transmitted signal on the first power distribution phase line and not on the second power distribution phase line.
Dependencies are inferred from the claim text.