基于自适应动态规划的网络攻击下微电网动态事件触发自适应频率控制

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS
Zemeng Mi, Hanguang Su, Qiuye Sun, Yuliang Cai, Zhongyang Ming
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引用次数: 0

摘要

可再生能源(RES)的日益普及和网络物理微电网(cpm)的发展对微电网的频率控制提出了更高的要求。频率控制的常用方法是控制微型涡轮机来补偿频率偏差,储能系统作为辅助方法。本文提出了一种在线自适应频率控制方法,控制调速器和储能,实现微电网在风力机、电力负荷和虚假数据注入(FDI)攻击等外部未知干扰下的频率恢复。首先,本文对所考虑系统的非零和(NZS)对策进行了建模,其中也考虑了未知干扰。为了估计未知扰动,引入了微电网系统的扰动观测器(DOB)。然后,根据应用DOB的估计结果,导出干扰补偿输入以抵消未知干扰的干扰。同时,采用自适应动态规划(ADP)方法推导了微网系统NZS博弈的自适应最优控制输入。此外,还引入了动态事件触发(DET)控制,减少了对计算资源的占用。利用李雅普诺夫方法,保证了闭环系统的稳定性、估计权值的收敛性、估计扰动和系统状态的收敛性。仿真结果最终验证了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Dynamic event-triggered-based adaptive frequency control of microgrids under cyber-attacks via adaptive dynamic programming

Dynamic event-triggered-based adaptive frequency control of microgrids under cyber-attacks via adaptive dynamic programming

The increasing penetration of renewable energy sources (RES) and the development of the cyber-physical microgrids (CPMs) make greater demands for frequency control of microgrids. The common approach for frequency control is controlling the micro-turbine to compensate for frequency deviations, with energy storage systems serving as an auxiliary approach. This article proposes an online adaptive frequency control method to control the governor and energy storage to realize the frequency recovery of microgrid, subject to the external unknown disturbances caused by wind turbine, power load and false data injection (FDI) attacks. First, the non-zero sum (NZS) games of the considered system are modeled in this work, where the unknown disturbances are also taken into account. For the sake of estimating the unknown disturbances, a disturbance observer (DOB) for the microgrid system is introduced. Then, on the basis of the estimated results of the applied DOB, the disturbance compensation input is derived to offset the interference of the unknown disturbance. Meanwhile, the adaptive dynamic programming (ADP) approach is employed to derive the adaptive optimal control input for the NZS games of microgrid system. Besides, the dynamic event-triggered (DET) control is introduced, reducing the occupation of computing resources. By utilizing the Lyapunov's method, the stability of the closed-loop system, the convergence of the estimation weight, the estimation disturbances and the system state are guaranteed. The effectiveness of the proposed method is ultimately verified by the simulation results.

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来源期刊
IET Renewable Power Generation
IET Renewable Power Generation 工程技术-工程:电子与电气
CiteScore
6.80
自引率
11.50%
发文量
268
审稿时长
6.6 months
期刊介绍: IET Renewable Power Generation (RPG) brings together the topics of renewable energy technology, power generation and systems integration, with techno-economic issues. All renewable energy generation technologies are within the scope of the journal. Specific technology areas covered by the journal include: Wind power technology and systems Photovoltaics Solar thermal power generation Geothermal energy Fuel cells Wave power Marine current energy Biomass conversion and power generation What differentiates RPG from technology specific journals is a concern with power generation and how the characteristics of the different renewable sources affect electrical power conversion, including power electronic design, integration in to power systems, and techno-economic issues. Other technologies that have a direct role in sustainable power generation such as fuel cells and energy storage are also covered, as are system control approaches such as demand side management, which facilitate the integration of renewable sources into power systems, both large and small. The journal provides a forum for the presentation of new research, development and applications of renewable power generation. Demonstrations and experimentally based research are particularly valued, and modelling studies should as far as possible be validated so as to give confidence that the models are representative of real-world behavior. Research that explores issues where the characteristics of the renewable energy source and their control impact on the power conversion is welcome. Papers covering the wider areas of power system control and operation, including scheduling and protection that are central to the challenge of renewable power integration are particularly encouraged. The journal is technology focused covering design, demonstration, modelling and analysis, but papers covering techno-economic issues are also of interest. Papers presenting new modelling and theory are welcome but this must be relevant to real power systems and power generation. Most papers are expected to include significant novelty of approach or application that has general applicability, and where appropriate include experimental results. Critical reviews of relevant topics are also invited and these would be expected to be comprehensive and fully referenced. Current Special Issue. Call for papers: Power Quality and Protection in Renewable Energy Systems and Microgrids - https://digital-library.theiet.org/files/IET_RPG_CFP_PQPRESM.pdf Energy and Rail/Road Transportation Integrated Development - https://digital-library.theiet.org/files/IET_RPG_CFP_ERTID.pdf
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