Sun Yue, Zhang Chenghui, Zhao Daduan, Cao Xiangyang, Sun Bo, Li Ke, Li Yan
School of Control Science and Engineering, Shandong University, Jinan, China.
ISA Trans. 2023 Nov;142:242-253. doi: 10.1016/j.isatra.2023.08.003. Epub 2023 Aug 5.
For battery energy storage systems (BESSs) in islanded AC microgrids, distributed control strategy provides an effective and flexible means to implement frequency restoration, proportional active power sharing and state of charge (SoC) balancing. Nevertheless, the distributed control system is susceptible to potential cyber attacks that break the synchronization and stability. To mitigate those effects, this paper presents an attack-resilient distributed adaptive secondary control for heterogeneous BESSs in islanded AC microgrids. The proposed control method can guarantee the consensuses on BESSs' frequency, active power and SoC simultaneously in the presence of actuator attacks, which only uses the local and neighbor's information. Specifically, the resilience is improved significantly by introducing the dynamic control gains with adaptive updating laws. Furthermore, the stability analysis is applied to assure the robustness. Lastly, the effectiveness of the above discussed conclusions is validated and compared by case studies on an islanded AC microgrid testing system.
对于孤岛交流微电网中的电池储能系统（BESS），分布式控制策略为实现频率恢复、比例有功功率共享和荷电状态（SoC）平衡提供了一种有效且灵活的方法。然而，分布式控制系统容易受到潜在网络攻击的影响，从而破坏同步性和稳定性。为减轻这些影响，本文提出了一种针对孤岛交流微电网中异构BESS的抗攻击分布式自适应二次控制方法。所提出的控制方法在存在执行器攻击的情况下，仅利用本地和邻居信息，就能同时保证BESS在频率、有功功率和SoC上的一致性。具体而言，通过引入具有自适应更新律的动态控制增益，显著提高了抗攻击能力。此外，进行了稳定性分析以确保鲁棒性。最后，通过在孤岛交流微电网测试系统上的案例研究，验证并比较了上述结论的有效性。
