Identifying vulnerabilities of state estimators against cyber-attacks

Date

2013-11-04

Author

Göl, Murat

Metadata

Show full item record

Item Usage Stats

112
views

0
downloads

State estimation has an important role in the operation of power systems and associated power markets. It is well known that state estimators are vulnerable to any existing critical measurements since their errors cannot be detected. Therefore, by manipulating a finite number of critical measurements, a hacker can bias the results of state estimation without being detected. Those biased results include both system states (bus voltage magnitudes and angles) and branch flows that are calculated by using the system states. This work investigates the cyber-attacks carried out by strategically manipulating critical measurements and proposes a method to identify the set of estimated flows that are vulnerable to those cyber-attacks. The proposed method will be described and simulations will be presented to validate the method. The paper considers power systems that are measured by a mixed set of measurements, namely power flow, injection and voltage magnitude measurements, as well as phasor measurements provided by the phasor measurement units (PMUs).

Subject Keywords

State estimation, Cyber security, Critical measurements, PMU

URI

https://hdl.handle.net/11511/87237
https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6652124
http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=59&SID=C4HwxkwcASPyNsmWoGY&page=1&doc=2&cacheurlFromRightClick=no

DOI

https://doi.org/10.1109/PTC.2013.6652124

Conference Name

IEEE Grenoble PowerTech (POWERTECH) Conference, Jun 16-20, 2013

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Effective measurement design for cyber security Göl, Murat (Institute of Electrical and Electronics Engineers Inc. (IEEE); 2015-02-12) Cyber-attacks against power systems have been widely researched in recent years. Several studies have so far focused on ways of deceiving the state estimator so that the resulting estimates would be wrong. On the other hand, the role of network topology and measurement design on detectability of cyber-attacks has not been widely investigated. This work examines the measurements and network topology to identify vulnerabilities against targeted cyber-attacks. Specifically, it considers the leverage measuremen...
Rapid tracking of bus voltages using synchro phasor assisted state estimator Göl, Murat; Floyd, Galvan (2012-10-10) State estimation has a key role in secure operation of power systems and management of power markets. It calculates the optimal estimates of the system states using the available measurements. Increasing number of phasor measurement units (PMU) installed in power systems motivated their integration also into state estimators which so far relied solely on SCADA measurements. However, different refresh rates of PMU and SCADA measurements present a challenge in their efficient integration. This paper proposes ...
From the National Cyber Maturity to the Cyber Resilience: An Assessment of the Strategic Efforts of Turkey Karabacak, Bilge; Tatar, Unal (2016-04-13) In this paper, the details of critical infrastructure protection program of the United States of America are shared by taking the cyber resilience into account. The academic and institutional studies on the concepts of cyber maturity, critical infrastructure protection program and cyber resilience are explained in detail. By the help of these studies and national efforts, the relations among these concepts are set forth. The key components of a cyber security strategy and action plan for a cyber-resilient s...
Improved Situational Awareness for Power Distribution Systems Based on WLAV Estimator and Direct Load Flow Solution Parlaktuna, Kemal; Dursun, Erk; Cinalioglu, Mustafa Cihan; Göl, Murat (2022-01-01) With high renewable penetration, increasing popularity of electrical vehicles and rapid growth of electrical system especially in urban areas, modern distribution power systems are becoming more complex. Having situational awareness of the system is crucial for system operator both to have knowledge on the current state of the system and where to improve infrastructure. In this paper an application of a situational awareness tool for an active distribution power system is discussed. Improvements on the info...
National PQ monitoring network for Turkish electricity transmission system Demirci, Turan; Kalaycioglu, Alper; Salor, Oezguel; Pakhuylu, Serkan; Dagli, Mehmet; Kara, Tugberk; Aksueyek, Hasan S.; Topcu, Cigdem; Polat, Beyhan; Bilgen, Semih; SEZEN, UMUT; Cadirci, Isik; Ermiş, Muammer (2007-05-03) In this paper a nationwide power quality monitoring system, which computes and collects PQ parameters and the required waveforms at a power quality monitoring center for both the purposes of early warning and later analysis of power quality of the whole transmission system, is presented. The system consists of three basic units: PQ monitors connected to various transformer substations all over the country; a national PQ monitoring center which communicates with all PQ monitors regularly, receives PQ data an...

Citation Formats

M. Göl, “Identifying vulnerabilities of state estimators against cyber-attacks,” presented at the IEEE Grenoble PowerTech (POWERTECH) Conference, Jun 16-20, 2013, Grenoble, France, 2013, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/87237.