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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Title: Dynamic State Estimation Based Protection Scheme for Cyber-attacks on Microgrids
Committee:
Dr. Sakis Meliopoulos, ECE, Chair, Advisor
Dr. Raheem Beyah, ECE
Dr. Maryam Saeedifard, ECE
Dr. Santiago Grijalva, ECE
Dr. Nagi Gebraeel, ISyE
Abstract: This dissertation mainly focuses on false data injection attacks, i.e., scenarios where a malicious actor manages to falsify system measurements aiming to confuse or trick either monitoring equipment or system operators regarding the system state and operation. By spoofing power system measurements, adversaries can give a false impression of the system operation and have legitimate control functions or people operating the system react by taking actions that severely disrupt a system that would otherwise operate properly. Here, a novel microgrid protection scheme is introduced to addresses such concerns by analyzing system measurements and identifying measurement falsification attempts within a microgrid. The proposed scheme is responsible for the supervision of all relays that monitor individual protection zones of the protected microgrid. In order to achieve its goal, it operates in a centralized manner by receiving and analyzing measurements recorded throughout the microgrid.
