Title :
GPS spoofing based time stamp attack on real time wide area monitoring in smart grid
Author :
Shuping Gong ; Zhenghao Zhang ; Trinkle, Matthew ; Dimitrovski, Aleksandar D. ; Husheng Li
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Tennessee, Knoxville, TN, USA
Abstract :
Many operations in power grids, such as fault detection and event location estimation, depend on precise timing information. In this paper, a novel time stamp attack (TSA) is identified in smart grid. Since many applications in smart grid utilize synchronous measurements and most of the measurement devices are equipped with global positioning system (GPS) for precise timing, it is highly probable to attack the measurement system by spoofing the GPS. The effectiveness of TSA is demonstrated by time synchronized transmission line fault detection, as well as regional disturbing event location. To defend against TSA, we proposed a multi-antenna based quickest GPS spoofing detection algorithm. By exploiting the theory of quickest detection, we apply the probabilistic metric of the carrier signal to noise ratio from two receive antennas to conduct the quickest GPS spoofing detection. Experiment results demonstrate that the proposed defense scheme can effectively detect and prevent GPS spoofing attack.
Keywords :
Global Positioning System; fault diagnosis; power system measurement; power transmission faults; power transmission lines; receiving antennas; satellite antennas; smart power grids; GPS spoofing based time stamp attack detection; Global Positioning System; TSA; carrier signal to noise ratio; measurement devices; measurement system; multiantenna based quickest GPS spoofing detection algorithm; real-time wide area monitoring; receive antennas; regional disturbing event location; smart power grid; synchronous measurements; time synchronized transmission line fault detection; Fault detection; Global Positioning System; Privacy; Receiving antennas; Reliability; Transmitting antennas;
Conference_Titel :
Smart Grid Communications (SmartGridComm), 2012 IEEE Third International Conference on
Conference_Location :
Tainan
Print_ISBN :
978-1-4673-0910-3
Electronic_ISBN :
978-1-4673-0909-7
DOI :
10.1109/SmartGridComm.2012.6486000