This paper introduces a dynamic network model together with a phasor measurement unit (PMU) measurement model suitable for power system state estimation under spoofing attacks on the global positioning system (GPS) receivers of PMUs. The spoofing attacks may introduce time-varying phase offsets in the affected PMU measurements. An algorithm is developed to jointly estimate the state of the network, which amounts to the nodal voltages in rectangular coordinates, as well as the time-varying attacks. The algorithm features closed-form updates. The effectiveness of the algorithm is verified on the standard IEEE transmission networks. It is numerically shown that the estimation performance is improved when the dynamic network model is accounted for compared with a previously reported static approach.

中文翻译：

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GPS欺骗攻击下带有PMU的多周期电力系统状态估计

本文介绍了一种动态网络模型以及相量测量单元（PMU）测量模型，该模型适用于在PMU的全球定位系统（GPS）接收机受到欺骗攻击的情况下的电力系统状态估计。欺骗攻击可能会在受影响的PMU测量中引入时变相位偏移。开发了一种算法来联合估计网络状态，该状态等于直角坐标中的节点电压以及随时间变化的攻击。该算法具有封闭形式的更新。该算法的有效性已在标准IEEE传输网络上得到验证。数值显示，与以前报道的静态方法相比，当考虑动态网络模型时，估计性能得到了改善。