Joint Detection and State Estimate with GSAs in PMU-Based Smart Grids
Feng Hua,
Wengen Gao,
Yunfei Li
et al.
Abstract:The Phasor Measurement Unit (PMU) with a GPS signal receiver is a synchronized sensor widely used for power system state estimation. While the GPS receiver ensures time accuracy, it is vulnerable to network attacks. GPS spoofing attacks can alter the phase angle of PMU measurement signals and manipulate system states. This paper derives a power system state model based on PMUs under GPS spoofing attacks, according to the characteristics of changes in bus voltages and branch currents after GSA. Based on the cha… Show more
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