IEEE Power & Energy Magazine - September/October 2015 - 24

(a)
Corridor1: PQ Plot
700.0000

Corridor1: PQ Operating

[MVAR]

600.0000

500.0000

467

400.0000

300.0000
726

200.0000
400.0

600.0
[MW]

800.0

(b)

figure 6. (a) A real-time bus and corridor monitoring display deployed at PG&E and (b) a real-time reactive margin
indication after a contingency.

powerful control devices, robust communication systems, and
well-engineered algorithms to deliver actionable information
for real-time operation and data into contingency analysis tools.
the entities undertaking synchrophasor deployment recognize
the importance of data exchange to enable a true wide-area
situational awareness. there are requirements that must be
explored with any network design around data exchange architectures, including bandwidth management, network access,
24

ieee power & energy magazine

data security reliability, and redundancy. Figure 9 is a simplified diagram reflecting a utility with independent data centers
and independent physical and electronic security parameters
(PsPs and esPs, respectively) exchanging data with the rc.
in this architecture, data from each utility data center is transmitted to the rc's primary and alternate sites.
the overall management of the wide-area network (wan)
may be a third-party carrier specializing in high reliability
september/october 2015



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - September/October 2015

IEEE Power & Energy Magazine - September/October 2015 - Cover1
IEEE Power & Energy Magazine - September/October 2015 - Cover2
IEEE Power & Energy Magazine - September/October 2015 - 1
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IEEE Power & Energy Magazine - September/October 2015 - 96
IEEE Power & Energy Magazine - September/October 2015 - Cover3
IEEE Power & Energy Magazine - September/October 2015 - Cover4
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