Determining parameters of an equivalent circuit representing a transmission section of an electrical network
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United States of America Patent
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Apr 3, 2007
Grant Date -
Apr 15, 2004
app pub date -
Sep 29, 2003
filing date -
Oct 10, 2002
priority date (Note) -
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Abstract
A method for determining an equivalent impedance of a transmission section of an electrical network, includes representing the transmission section as having at least two interfaces with other sections of the network. For each interface, a voltage phasor and a current phasor flowing through the interface are determined from simultaneously made measurements at the interfaces. From the phasors, the equivalent impedance is calculated. The required simultaneousness of the phasor measurements is achieved by means of Phasor Measurement Units (PMUs) that are synchronized via the Global Positioning System (GPS).
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