A Robust PMU Placement Method Against Spoofing Attacks; Spoofing Detection and Data Refinement

In some recent articles, the spoofing of Phasor measurement unit (PMU) GPS receiver has been highlighted as a threat to power grid protection system. Having spoofed PMU GPS signals, one can manipulate the measurements and inject bad data to power grid protection system. The previous anti spoofing methods are all based on GPS signal analysis. The mentioned methods are just able to detect spoofing without any data refinement. Besides, some of these methods lose their certainty in noisy and harsh environments and some others need additional infrastructures which may be highly cost. In this paper, a novel anti spoofing algorithm has been proposed based on power grid infrastructures. The proposed algorithm relies on a robust PMU placement method against spoofing attacks. The algorithm is not only able to detect PMU GPS receiver spoofing, but also is able to refine manipulated data. Keywords-component; PMU; PMU placement; Spoofing attacks