Optimal PMU Restoration for Power System Observability Recovery After Massive Attacks
Optimal PMU Restoration for Power System Observability Recovery After Massive Attacks
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DOI：
10.1109/tsg.2020.3028761
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发表时间：
2021-03
影响因子：
9.6
通讯作者：
S. N. Edib;Yuzhang Lin;V. Vokkarane;F. Qiu;Rui Yao;Dongbo Zhao
中科院分区：
文献类型：
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作者：
S. N. Edib;Yuzhang Lin;V. Vokkarane;F. Qiu;Rui Yao;Dongbo Zhao
网络物理弹性电力系统运行需要在大规模网络攻击等灾难性场景后快速恢复态势感知。针对攻击后电力系统可观测性的快速恢复问题，提出了相量测量单元最优序贯恢复的概念。可观测性恢复问题是一个混合线性规划问题，以最大化恢复过程中随着时间的推移获得的累积可观测性水平。三个可供选择的目标函数，最大限度地提高可观察总线的数量，可观察的分支的数量，和可观察的功率流的总量被认为是。在IEEE 57节点系统上与启发式方法进行了比较，验证了所提优化策略的有效性。
Cyber-physically resilient power system operation requires rapid recovery of situational awareness after disastrous scenarios such as massive cyber attacks. In this article, the concept of optimal sequential restoration of Phasor Measurement Units is introduced, aiming at rapid recovery of power system observability in post-attack scenarios. The observability recovery problem is formulated as a Mixed Integer Linear Programming problem to maximize the cumulative observability level gained over time during the restoration process. Three alternative objective functions—maximizing the number of observable buses, the number of observable branches, and the total amount of observable power flow—are considered. The effectiveness of the proposed optimal strategy is verified by comparing it with heuristic approaches on the IEEE 57-bus system.