TY - JOUR
T1 - Latency viewed as a stochastic process and its impact on wide area power system control signals
AU - Stahlhut, Jonathan William
AU - Browne, Timothy James
AU - Heydt, Gerald Thomas
AU - Vittal, Vijay
N1 - Funding Information:
Manuscript received April 30, 2007; revised August 6, 2007. This work was supported in part by the Cyprus Research Promotion Foundation under grant E/0505/06 and in part by the Power Systems Engineering Research Center (PSerc) under a grant from the National Science Foundation, EEC-0001880, in the Industry/University Cooperative Research Center program. Paper no. TPWRS-00320-2007. The authors are with the Electrical Engineering Department, Arizona State University, Tempe, AZ 85287 USA (e-mail: jonathan.stahlhut@asu.edu; timothy.browne@asu.edu; heydt@asu.edu; vijay.vittal@asu.edu). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TPWRS.2007.913210
PY - 2008/2
Y1 - 2008/2
N2 - A method of calculating the communication delay (latency) for measurements and control signals in a power system is shown. The basis of the calculation is a dedicated communication channel for control signals. The time delay calculation is examined using a dynamic equivalent of the Western Electricity Coordinating Council transmission system. The impact on control system response is discussed. The application given is a wide area control system for interarea mode damping. Results demonstrate that control signal latency can degrade the performance of controls in a wide area control system.
AB - A method of calculating the communication delay (latency) for measurements and control signals in a power system is shown. The basis of the calculation is a dedicated communication channel for control signals. The time delay calculation is examined using a dynamic equivalent of the Western Electricity Coordinating Council transmission system. The impact on control system response is discussed. The application given is a wide area control system for interarea mode damping. Results demonstrate that control signal latency can degrade the performance of controls in a wide area control system.
KW - Damping
KW - Latency
KW - Network delay
KW - Power system control
KW - Power system stabilizer
KW - Queuing
KW - Wide area control systems
KW - Wide area measurement systems
UR - http://www.scopus.com/inward/record.url?scp=39749102387&partnerID=8YFLogxK
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U2 - 10.1109/TPWRS.2007.913210
DO - 10.1109/TPWRS.2007.913210
M3 - Article
AN - SCOPUS:39749102387
SN - 0885-8950
VL - 23
SP - 84
EP - 91
JO - IEEE Transactions on Power Systems
JF - IEEE Transactions on Power Systems
IS - 1
ER -