具有网络攻击和约束条件的直流微电网分布式控制:容错模型预测控制器

IF 4.8 2区 工程技术 Q2 ENERGY & FUELS Sustainable Energy Grids & Networks Pub Date : 2024-07-26 DOI:10.1016/j.segan.2024.101487
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引用次数: 0

摘要

通信安全问题给微电网系统的稳定性带来了严峻挑战。本文设计了一种基于容错分布式模型预测控制(DMPC)的直流微电网协同控制方法,以应对可能出现的虚假信息注入(FDI)攻击和通信限制问题。首先,根据电压和电流信息定义状态变量,从而得出网络物理框架下的微电网系统模型。然后,由于所构建的系统模型中存在由攻击和干扰组成的综合不确定性项,因此提出了一种扩展状态观测器(ESO)来观测不确定性项。然后,基于构建的系统模型和设计的 ESO,设计了一种容错分布式模型预测控制器。在控制器中,利用 DMPC 对通信信息进行约束,确保通信状态和物理状态的约束性。仿真结果表明,所提出的基于 DMPC 的分布式控制方法可以实现稳定的电压调节和精确的电流分担,即使在 FDI 攻击下也能保持平稳运行,这验证了所提出方法的可行性。
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Distributed control for DC microgrids with cyber attacks and constraints: A fault-tolerant model predictive controller

Communication security issues pose severe challenges to stability of microgrid system. This paper designs a cooperative control method based on fault-tolerant distributed model predictive control (DMPC) for DC microgrid against possible false information injection (FDI) attacks and communication constraints problems. First, a state variable is defined based on the voltage and current information, thereby deriving a system model of the microgrid under the cyber-physical framework. Then, since a combined uncertainty term consisting of attacks and disturbances exists in the constructed system model, an expanded state observer (ESO) is proposed to observe the uncertainty term. Further, based on the constructed system model and the designed ESO, a fault-tolerant distributed model predictive controller is designed. In the controller, DMPC is utilized to constrain the communication information and ensure the boundedness of the communication state and physical state. Simulation results indicate that the proposed DMPC-based distributed control method can achieve stable voltage regulation and accurate current sharing, and maintain smooth operation even under FDI attack, which verifies the feasibility for the proposed method.

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来源期刊
Sustainable Energy Grids & Networks
Sustainable Energy Grids & Networks Energy-Energy Engineering and Power Technology
CiteScore
7.90
自引率
13.00%
发文量
206
审稿时长
49 days
期刊介绍: Sustainable Energy, Grids and Networks (SEGAN)is an international peer-reviewed publication for theoretical and applied research dealing with energy, information grids and power networks, including smart grids from super to micro grid scales. SEGAN welcomes papers describing fundamental advances in mathematical, statistical or computational methods with application to power and energy systems, as well as papers on applications, computation and modeling in the areas of electrical and energy systems with coupled information and communication technologies.
期刊最新文献
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