Deadline-aware concentration of synchrophasor data: An optimal stopping approach

Miao He, Junshan Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages296-301
Number of pages6
ISBN (Electronic)9781479949342
DOIs
StatePublished - Jan 12 2015
Event2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014 - Venice, Italy
Duration: Nov 3 2014Nov 6 2014

Publication series

Name2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014

Conference

Conference2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014
CountryItaly
CityVenice
Period11/3/1411/6/14

Fingerprint Dive into the research topics of 'Deadline-aware concentration of synchrophasor data: An optimal stopping approach'. Together they form a unique fingerprint.

  • Cite this

    He, M., & Zhang, J. (2015). Deadline-aware concentration of synchrophasor data: An optimal stopping approach. In 2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014 (pp. 296-301). [7007662] (2014 IEEE International Conference on Smart Grid Communications, SmartGridComm 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SmartGridComm.2014.7007662