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SUMMARY:Undetectable delay attacks on PMU-measurement based state estimati
 on of smart-grids
DTSTART:20180206T140000
DTEND:20180206T160000
DTSTAMP:20260407T161915Z
UID:dd8bc3d16af13d568f13203a152662cfbaf42fe1facb18a6aa08b8bd
CATEGORIES:Conferences - Seminars
DESCRIPTION:Marguerite Delcourt\nEDIC candidacy exam\nExam president: Prof
 . Mario Paolone\nThesis advisor: Prof. Jean-Yves Le Boudec\nCo-examiner: P
 rof. Ola Svensson\n\nAbstract\nIn the setting of smart-grid linear state e
 stimation based on Phasor Measurement Unit (PMU) measurements\, it has bee
 n shown that one can mount attacks on the time synchronisation of PMUs. Th
 e result of which can have a potentially large impact on the state estimat
 ion which can cause severe damage to the grid. Typically bad data in measu
 rements is detected and identified using techniques based on residuals. He
 nce\, a delay attack that triggers no change in measurement residuals will
  pass the test and remain undetected. Another approach avoiding the use of
  Bad Data Detection algorithms is to use so-called robust state estimators
  such as the Least Absolute Value (LAV) estimator. In our setting\, LAV-ba
 sed state estimators's time complexity is in fact competitive with the cum
 ulation of a non-robust state estimator and a bad data detection algorithm
 . Thus\, they may be largely deployed on PMUs in the future in which case 
 successful undetectable attacks would need to influence the resulting stat
 e estimation bypassing the estimator's robustness. Another interesting fac
 t is the clear link between the possible undetectably attackable PMUs and 
 the criticality of their measurements. Some criterion can be used to find 
 such locations and we believe that finding critical k-tuples in Power Netw
 orks will help attackers. The three papers that will be presented will foc
 us on the undetectable timing attack on linear state estimation\, on the u
 se of LAV-based robust state estimators in systems measured by PMUs and on
  the computation of critical k-tuples in Power Networks.\n\nBackground pap
 ers Undetectable Timing-Attack on Linear State-Estimation by Using Rank-1 
 Approximation\, by  Barreto S.\, et al.\nLAV Based Robust State Estimation
  for Systems Measured by PMUs\,  IEEE TRANSACTIONS ON SMART GRID\, VOL. 5\
 , NO. 4\, JULY 2014.\nComputing Critical k-Tuples in Power Networks\,   I
 EEE Transactions on Power Systems ( Volume: 27\, Issue: 3\, Aug. 2012).\n
  
LOCATION:BC 02 https://plan.epfl.ch/?room==BC%2002
STATUS:CONFIRMED
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