Synchronized metrology in power generation and distribution networks

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United States of America Patent

PATENT NO 9330563
APP PUB NO 20140340236A1
SERIAL NO

14220838

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Phasor Measurement Units (PMUs) tend to be specialized and expensive—relegated to only key points in power distribution networks, and are generally reliant on GPS technology. The present disclosure details how any smart meter—using wireless communication—can perform sub-microsecond-grade synchrophasor measurements. Other aspects concern smart meter-based determination of A, B or C phase of the tri-phase power network. This can involve count-stamp enabling message packets sent to and/or from a smart meter, and then associating such count-stamps to local measurements of power phase by a metrology unit. Once a network of such enabled smart meters and other devices is formed, sub-microsecond metropolitan-wide and entire region-wide synchronizing time standard can calibrate local measurements of power phase, where simple A, B and C phase determination is one low hanging fruit application of such. Low cost aggregate monitoring of metropolitan-wide synchrophasors promises a next chapter of importance for that relatively recent art.

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Patent Owner(s)

Patent OwnerAddress
DIGIMARC CORPORATION9405 SW GEMINI DR BEAVERTON OR 97008

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eustis, Conrad Portland, US 4 58
Rhoads, Geoffrey B West Linn, US 697 78610

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