phasor measurement units

• Phasor Measurement Units

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Super grid - Technology

1 Coordination and control of the network would use smart grid technologies such as phasor measurement units to rapidly

detect imbalances in the network caused by fluctuating renewable energy sources and potentially respond instantaneously with programmed automatic protection

schemes to reroute, reduce load, or reduce generation in response to

network disturbances.


Power quality - Smart grids and power quality

1 Modern systems use sensors called phasor measurement units (PMU) distributed

throughout their network to monitor power quality and in some cases respond

automatically to them. Using such smart grids features of rapid sensing and automated self

healing of anomalies in the network promises to bring higher quality power and less downtime while simultaneously supporting power from intermittent power sources and distributed

generation, which would if unchecked degrade power quality.


C37.118 - History

1 With the invention of phasor measurement units (PMU) in

1988 by Dr


C37.118 - Technical overview

1 In typical applications phasor measurement units are sampled from

widely dispersed locations in the power system network and

synchronized from the common time source of a Global positioning

system|global positioning system (GPS) radio clock


C37.118 - Phasor networks

1 A phasor network consists of phasor measurement units (PMUs) dispersed

throughout the electricity system, Phasor Data Concentrator|Phasor

Data Concentrators (PDC) to collect the information and a SCADA|Supervisory Control And Data

Acquisition (SCADA) system at the central control facility


C37.118 - Implementations

1 *The [ http://www.naspi.org North American Synchrophasor Initiative]

(NASPI), previously known as The Eastern Interconnect Phasor Project (EIPP), has

over 120 connected phasor measurement units collecting data into a Super Phasor Data Concentrator system centered at Tennessee Valley Authority (TVA). This

data concentration system is now an open source project known as the openPDC.


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phasor measurement units

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