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arXiv 2102.10587eess.SYcs.SY
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针对电力系统小干扰稳定性的虚假数据注入攻击

False Data Injection Attack Against Power System Small-Signal Stability

Mohamadsaleh Jafari, Mohammad A. Rahman, Sumit Paudyal

摘要:

小干扰稳定性(SSS)是电网控制的关键。然而,针对SSS的虚假数据注入(FDI)攻击会影响电网的稳定性,因此,SSS的安全性需要研究。本文提出了一种合成FDI攻击向量的形式化方法(即,一组要改变的测量),这可能使电力系统不稳定。我们制定了一个FDI攻击作为一个优化问题,使用交流潮流,SSS模型和稳定性约束。攻击者的能力被建模为一组有限的测量的可访问性。所提出的FDI攻击模型的解决方案提供了一个不稳定的攻击向量,如果存在。我们实现了所提出的机制,并通过使用WSCC 3机9总线系统进行几个案例研究,评估其性能。案例研究结果表明,随机FDIs(即,不了解电力系统)在发起不稳定攻击方面的能力太低而不能成功。然而,智能攻击者可以利用网格知识使系统不稳定,即使对测量的访问有限。

英文摘要:

Small-Signal Stability (SSS) is crucial for the control of power grids. However, False Data Injection (FDI) attacks against SSS can impact the grid stability, hence, the security of SSS needs to be studied. This paper proposes a formal method of synthesizing FDI attack vectors (i.e., a set of measurements to be altered) that can destabilize power systems. We formulate an FDI attack as an optimization problem using AC power flow, SSS model, and stability constraints. The attacker capability is modeled as the accessibility to a limited set of measurements. The solution of the proposed FDI attack model provides a destabilizing attack vector if exists. We implement the proposed mechanism and evaluate its performance by conducting several case studies using the WSCC 3-machine 9-bus system. The case study results showed that the possibility of random FDIs (i.e., with no knowledge of the power system) in launching a destabilizing attack is too low to be successful. However, an intelligent attacker can leverage the grid knowledge to make the system unstable, even with limited access to the measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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