The development of synchrophasors measurements from
their origins in digital relays to the deployment of
about 1000 units through the stimulus program will be
described. Synchrophasors use GPS timing signals to
measure voltages and currents in the transmission system
synchronously with time errors of less than a m second.
The data is transmitted with a time tag to central locations
for monitoring, protection, and control.
synchrophasors can address significant existing power
system problems and some recent results including two
DOE demonstration projects involving dynamic state estimation
and adaptive relaying will be presented.
as modern telescopes (Hubble) and microscopes (STEMs)
have brought surprises, the availability of highly accurate
measurements power system measurements at a rate of
30 times a second have shown us things we did not expect.
Some examples will be given.
James S. Thorp (LF 2002)
was the Hugh P. and Ethel C. Kelley Professor of Electrical
and Computer Engineering and Department Head of the
Bradley Department of Electrical and Computer Engineering
at Virginia Tech from 2004 to 2009. He was the Charles
N. Mellowes Professor in Engineering at Cornell University
from 1994-2004. and was the Director of the Cornell
School of Electrical and Computer Engineering from 1994
to 2001, a Faculty Intern, American Electric Power Service
Corporation in 1976-77 and an Overseas Fellow, Churchill
College, Cambridge University in 1988.
Thorp was an Alfred P. Sloan Foundation National Scholar
and was elected a Fellow of the IEEE in 1989 and a Member
of the National Academy of Engineering in 1996. He received
the 2001 Power Engineering Society Career Service award,
the 2006 IEEE Outstanding Power Engineering Educator
Award, and shared the 2007 Benjamin Franklin Medal with
Thursday March 21, 2013
Social: 6:30 PM
Dinner: 7:00 PM
Talk: 8:00 PM
Members & Guests $20.00, Students $10.00
Please let us know if you have any dietary restrictions
(vegetarian, dairy or gluten allergy, etc)
Holiday Inn Blacksburg
900 Prices Fork Road
Blacksburg, VA 24060
Directions to Holiday Inn
From I-81, take exit 118 towards Virginia Tech, onto
Follow US-460 W, travel through the traffic light for
the stadium (Southgate Drive), then take the next exit
(Downtown Exit, which is Prices Fork Road).
Follow Prices Fork Rd to the next traffic light, and
the Holiday Inn is on the corner of Prices Fork Rd and
University City Boulevard on the left.
One Continuing Education Credit will be awarded for
this meeting. Please see Dr. David Livingston at the
meeting to sign up for the credit.
RSVP by 5 PM, Monday, March 17, 2013. Please specify
the number of attendees and any dietary needs/restrictions.