论文标题
在对抗环境中对电网变压器进行强有力监测的目标防御
Moving Target Defense for Robust Monitoring of Electric Grid Transformers in Adversarial Environments
论文作者
论文摘要
电力电网组件，例如高压变压器（HVT），生成站，变电站等，维护昂贵，并且在失败时，更换。因此，定期监视此类组件的行为至关重要。此外，此类系统上的网络攻击数量最近增加，要求这种监视策略应该是可靠的。在本文中，我们从移动目标防御（MTD）的工作中汲取灵感，并考虑一种动态监控策略，该策略使攻击者难以防止对指示HVT状态的行为信号的唯一识别。我们首先提出了在电网背景下为MTD找到差异免疫配置的问题，然后提出算法来计算它。为了找到最佳的运动策略，我们将MTD建模为两人游戏，并考虑Stackelberg策略。在IEEE测试案例的帮助下，我们显示了我们提出的方法的功效和可扩展性。
Electric power grid components, such as high voltage transformers (HVTs), generating stations, substations, etc. are expensive to maintain and, in the event of failure, replace. Thus, regularly monitoring the behavior of such components is of utmost importance. Furthermore, the recent increase in the number of cyberattacks on such systems demands that such monitoring strategies should be robust. In this paper, we draw inspiration from work in Moving Target Defense (MTD) and consider a dynamic monitoring strategy that makes it difficult for an attacker to prevent unique identification of behavioral signals that indicate the status of HVTs. We first formulate the problem of finding a differentially immune configuration set for an MTD in the context of power grids and then propose algorithms to compute it. To find the optimal movement strategy, we model the MTD as a two-player game and consider the Stackelberg strategy. With the help of IEEE test cases, we show the efficacy and scalability of our proposed approaches.
