Impacts of Bad Data on the PMU based Line Outage Detection
Cryptography and Security
2015-11-24 v2 Systems and Control
Abstract
Power systems become more prone to cyber-attacks due to the high integration of information technologies. In this paper, we demonstrate that the outages of some lines can be masked by injecting false data into a set of measurements. The success of the topology attack can be guaranteed by making that: 1)the injected false data obeys KCL and KVL to avoid being detected by the bad data detection program in the state estimation; 2)the residual is increased such that the line outage cannot be detected by PMU data. A quadratic programming problem is set up to determine the optimal attack vector that can maximize the residual of the outaged line. The IEEE 39-bus system is used to demonstrate the masking scheme.
Keywords
Cite
@article{arxiv.1502.04236,
title = {Impacts of Bad Data on the PMU based Line Outage Detection},
author = {Xuan Liu and Zhiyi Li and Zuyi Li},
journal= {arXiv preprint arXiv:1502.04236},
year = {2015}
}