TY - GEN
T1 - Deadline-aware concentration of synchrophasor data
T2 - 2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014
AU - He, Miao
AU - Zhang, Junshan
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/1/12
Y1 - 2015/1/12
N2 - Deadline-aware concentration of synchrophasor data from spatially dispersed phasor measurement units (PMUs) is studied, with an objective to find the optimal policy for the wait time of a phasor data concentrator (PDC), such that the deadline-constrained synchrophasor data delivery from PMUs via PDC to control center achieves maximal expected throughput. When the statistical information on the communication latency from PMUs to PDC and from PDC to control center is known, the wait time problem is cast as a continuous-time optimal stopping problem. The optimal stopping policy is then shown to exist, and then obtained by utilizing the infinitesimal look-ahead rule under mild conditions. Further, the scenarios with substation PDCs or super PDCs are also considered. The dynamic wait time policy obtained by using the proposed optimal stopping approach, in comparison with two fixed wait time policies, results in significant improvement, as revealed through simulation studies.
AB - Deadline-aware concentration of synchrophasor data from spatially dispersed phasor measurement units (PMUs) is studied, with an objective to find the optimal policy for the wait time of a phasor data concentrator (PDC), such that the deadline-constrained synchrophasor data delivery from PMUs via PDC to control center achieves maximal expected throughput. When the statistical information on the communication latency from PMUs to PDC and from PDC to control center is known, the wait time problem is cast as a continuous-time optimal stopping problem. The optimal stopping policy is then shown to exist, and then obtained by utilizing the infinitesimal look-ahead rule under mild conditions. Further, the scenarios with substation PDCs or super PDCs are also considered. The dynamic wait time policy obtained by using the proposed optimal stopping approach, in comparison with two fixed wait time policies, results in significant improvement, as revealed through simulation studies.
UR - http://www.scopus.com/inward/record.url?scp=84922463716&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84922463716&partnerID=8YFLogxK
U2 - 10.1109/SmartGridComm.2014.7007662
DO - 10.1109/SmartGridComm.2014.7007662
M3 - Conference contribution
AN - SCOPUS:84922463716
T3 - 2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014
SP - 296
EP - 301
BT - 2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 3 November 2014 through 6 November 2014
ER -