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首頁> 外文期刊>IEEE Transactions on Power Systems >Deeply Hidden Moving-Target-Defense for Cybersecure Unbalanced Distribution Systems Considering Voltage Stability
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Deeply Hidden Moving-Target-Defense for Cybersecure Unbalanced Distribution Systems Considering Voltage Stability

機(jī)譯：考慮電壓穩(wěn)定性的網(wǎng)絡(luò)安全不平衡分配系統(tǒng)深度隱藏的移動目標(biāo)防御

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摘要

A recent proactive defense mechanism, named as moving-target-defense (MTD), has been proposed as a prevailing topic that is capable of actively changing transmission line reactance to preclude cyberattacks. However, the MTD strategy has seldom been studied for the unbalanced AC distribution system in the existing literature. Towards the end, this paper proposes a deeply-hidden MTD (DH-MTD) to elaborately hide both the self and mutual reactance of each phase at the transmission line installed with D-FACTS devices. Both the branch and injection power phasor measurement functions are integrated into DH-MTD in the cyberattack scenario and under the normal operating condition, while the system voltage stability is ensured. The proposed DH-MTD model is solved using a nonlinear least square (NLS) method based on the trust-region algorithm due to the non-Gaussian noise assumption. Also, we cope with the MTD allocation (MTDA) problem using a data-driven normalized PDF peak residual (NPPR) index. The effectiveness of the proposed DH-MTD method is demonstrated in the unbalanced IEEE 123-bus distribution system against both branch and node cyberattacks.
機(jī)譯：最近作為移動目標(biāo)防御（MTD）的最新主動防御機(jī)制已被提出作為一種主要的主題，該主題能夠積極改變傳輸線路電抗以排除網(wǎng)絡(luò)攻擊。但是，在現(xiàn)有文獻(xiàn)中，MTD策略很少針對不平衡的AC分配系統(tǒng)研究。朝前，本文提出了一種深隱隱式的MTD（DH-MTD），以便在用D型事實(shí)裝置安裝的傳輸線上精心隱藏每個階段的自我和相互電抗。分支和噴射功率量相測量功能都集成在Cyber??Actack場景中的DH-MTD中，并且在正常的操作條件下，確保了系統(tǒng)電壓穩(wěn)定性。由于非高斯噪聲假設(shè)，使用基于信任區(qū)域算法的非線性最小二乘法（NLS）方法來解決所提出的DH-MTD模型。此外，我們使用數(shù)據(jù)驅(qū)動的標(biāo)準(zhǔn)化PDF峰值殘差（NPPR）索引來應(yīng)對MTD分配（MTDA）問題。提出的DH-MTD方法的有效性在對抗兩個分支和節(jié)點(diǎn)網(wǎng)絡(luò)內(nèi)攻擊的不平衡IEEE 123總線分配系統(tǒng)中。

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