检索结果-内蒙古大学图书馆

Small Signal Stability-Guaranteed Moving Target Defense Against Load Redistribution Attack On IoT-based Smart Grid

IEEE Internet of Things Journal 2025年第11期12卷 17413-17429页

作者： Wang, Bingdong Zhang, Zhenyong Wang, Mufeng Liu, Mengxiang Ye, Rui Deng, Ruilong Zhang, Xin Guizhou University State Key Laboratory of Public Big Data College of Computer Science and Technology Guiyang550025 China China Industrial Control Systems Cyber Emergency Response Team Beijing100040 China University of Sheffield Department of Automatic Control and System Engineering Sheffield United Kingdom Guizhou Power Grid Co. Ltd. Intelligent Operation Center China Zhejiang University State Key Laboratory of Industrial Control Technology College of Control Science and Engineering Hangzhou310027 China Huzhou Institute of Industrial Control Technology Huzhou313000 China

Moving target defense (MTD) is a promising approach to defend against load redistribution attacks on the internet-of-things (IoT)-based smart grid networks by probing the distorted state estimates with the distributed flexible AC transmission system. However, existing studies mainly focus on optimizing the performance of MTD and ignore the safety effect of it on the system’s operation. In this paper, we fill this gap by deeply analyzing the effect of MTD on the small signal stability and aim to alleviate the negative impact and guarantee its defending performance simultaneously. Firstly, the stability is formally described using the eigenvalue sensitivity. The relationship between the MTD-induced perturbation (MTDper) and the stability criteria is derived. Secondly, a new indicator is proposed to measure the effectiveness of MTDper. Thirdly, a constrained optimization problem is formulated to compute the bound of MTDper for guaranteeing the small signal stability. In addition, a surprising finding is that the stability margin can be improved and enhanced by optimizing the value of MTDper without losing the MTD’s effectiveness. Finally, we evaluate the performance of MTDper and its impact on the small signal stability with extensive simulations on the IEEE 30-bus, 39-bus, and 68-bus test power systems. © 2014 IEEE.

关键词： Constrained optimization

来源：评论

学校读者我要写书评

暂无评论

Optimization Design and Dynamic Compensation Strategy of Inverter Parallel Virtual Impedance Based on Residual Generator 7

Optimization Design and Dynamic Compensation Strategy of Inv...

引用

7th IEEE Conference on Energy Internet and Energy system Integration, EI2 2023

作者： Hu, Changbin Huang, Haiyang Luo, Shanna Wang, Huiru Li, Xuecheng Lu, Heng North China University of Technology School of Electrical and Control Engineering Beijing China Beijing Kedong Electric Power Control System Co. Ltd Beijing China University of Duisburg-Essen Department of Automatic Control and Complex Systems Germany

ISBN: (纸本)9798350345094

To solve the power imbalance problem caused by the difference between the equivalent impedance of the inverter and the line impedance, and the power quality problem caused by the disturbance of load mutation, unbalanced load and nonlinear load, this paper proposes a closed-loop feedback dynamic compensation strategy based on the equivalent virtual impedance of the residual generator. Firstly, based on the parallel topology of inverters, a quasi-steady-state model is established on the dq axis. Based on the model, the power imbalance caused by the difference of output impedance and line impedance of different inverters and the power quality problems caused by load switching, unbalanced load, nonlinear load and other disturbances in parallel inverters are ***, a residual generator is established based on the inverter model. A virtual impedance equivalent controller Qvir(S) based on the residual generator is designed by the Luenberger observer principle. The disturbance information is fed back in real time through the feedback structure, and then the virtual impedance is adjusted to realize the power sharing of the inverter parallel system. Then, based on Euler parameterization and coprime factorization theory, a dynamic compensation architecture based on residual generator is designed. The transfer function of the dynamic compensation controller Qcom (S) is obtained by model matching to realize the steady-state operation of parallel inverters and the improvement of system power quality. Finally, the effectiveness of the proposed architecture is verified on the experimental platform. © 2023 IEEE.

关键词： Power quality

来源：评论

学校读者我要写书评

暂无评论

A Preliminary Case Study on the Dynamic Testing of a Masonry Arch Rail Bridge Using a Distributed Fiber Optic Sensing system

A Preliminary Case Study on the Dynamic Testing of a Masonry...

引用

Experimental Vibration Analysis for Civil engineering Structures - EVACES 2023 - Volume 2

作者： Cheng, Liangliang Cigada, Alfredo Zappa, Emanuele Gilbert, Matthew Lang, Zi-Qiang Faculty of Science and Engineering University of Groningen Groningen Netherlands Department of Mechanical Engineering Politecnico di Milano Milano Italy Department of Civil and Structural Engineering The University of Sheffield Sheffield United Kingdom Department of Automatic Control and System Engineering The University of Sheffield Sheffield United Kingdom

ISBN: (纸本)9783031391163

Masonry arch bridges are an integral part of the European transportation infrastructure. Regular inspections are essential for preserving the historical significance of these bridges and ensuring their safe operation. Despite recent advancements in assessment techniques, monitoring masonry arch bridges remains a difficult and essential field of research. This article describes field tests conducted in Gavirate, Italy, to preliminary understand the dynamic response of a masonry arch rail bridge to train-induced moving loads, as a proof of concept study. The objective of this field investigation is to quantify the dynamic strain induced by train moving loads and to reveal the dynamic behaviors of the masonry arch bridge using a novel distributed fiber optical sensing-based technique. The results may provide a useful guideline for monitoring masonry arch bridges using distributed fiber optical sensing. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Structural health monitoring

来源：评论

学校读者我要写书评

暂无评论

Architecture of AC-DC Energy Nodes in Supergrids: A Technical Foundation for Future Renewable Integration

Architecture of AC-DC Energy Nodes in Supergrids: A Technica...

引用

Applied Research in Electrical engineering (AREE), National and International Conference on

作者： Mohammad Hossein Mousavi Hassan Moradi Kumars Rouzbehi Department of Computer and Electrical Engineering Razi University Kermanshah Iran Department of System Engineering and Automatic Control University of Seville Seville Spain

ISBN: (数字)9798350377170

ISBN: (纸本)9798350377187

The AC-DC Energy Nodes (ADENs) concept offers a transformative approach to modernizing power grids, particularly in the context of supergrids. By centralizing power flows from diverse renewable energy sources, such as offshore wind farms, ADENs enable efficient long-distance power transmission through HVDC technology. This design enhances the balance of supply and demand across regions and countries, significantly improving grid stability and resilience. However, the implementation of ADENs presents substantial technical, regulatory, and cybersecurity challenges. This study delves into these challenges while also addressing the geopolitical complexities of transnational connections, underscoring the critical importance of policy alignment for successful deployment.

关键词： Renewable energy sources Supply and demand Protocols HVDC transmission Wind farms Power system stability Stability analysis Computer security Protection Resilience

来源：评论

学校读者我要写书评

暂无评论

Coordinate projected gradient descent minimization and its application to orthogonal nonnegative matrix factorization

arXiv

引用

arXiv 2025年

作者： Chorobura, Flavia Lupu, Daniela Necoara, Ion Automatic Control and System Engineering Department University Politehnica Bucharest Spl. Independentei Bucharest060042 Romania

In this paper we consider large-scale composite nonconvex optimization problems having the objective function formed as a sum of three terms, first has block coordinate-wise Lipschitz continuous gradient, second is twice differentiable but nonseparable and third is the indicator function of some separable closed convex set. Under these general settings we derive and analyze a new cyclic coordinate descent method, which uses the partial gradient of the differentiable part of the objective, yielding a coordinate gradient descent scheme with a novel adaptive stepsize rule. We prove that this stepsize rule makes the coordinate gradient scheme a descent method, provided that additional assumptions hold for the second term in the objective function. We also present a worst-case complexity analysis for this new method in the nonconvex settings. Numerical results on orthogonal nonnegative matrix factorization problem also confirm the efficiency of our algorithm. © 2025, CC BY.

关键词： Matrix algebra

来源：评论

学校读者我要写书评

暂无评论

Optimal and Adaptive 1553B Telemetry Scheduling for Flight control Software Based on Dynamic Programming 22

Optimal and Adaptive 1553B Telemetry Scheduling for Flight C...

引用

Proceedings of the 11th International Conference on Software and Information engineering

作者： Fei Gao Hong Huo Huimin Ren Sidong Liu Zhong Yu Department of System Software Engineering Beijing Aerospace Automatic Control Institute China Beijing Aerospace Automatic Control Institute China

ISBN: (纸本)9781450397063

This paper presents a novel telemetry scheduling method which can dynamically balance the load rate of 1553B bus for the aerospace flight control software. The proposed method considers the telemetry function in flight control software as an interaction procedure of task producer and consumer which decouples the generation and transmission of telemetry data, so that it can be easily adopted for the telemetry data configuration changes along with the running system variation and can prevent the effectiveness of data from influenced by data transmission delay. Then, the optimization of transmission efficiency is obtained by dynamic programming the quantity of telemetry data per cycle accommodating timing constraints and busload rate restriction meanwhile. Finally, visual comparisons confirm that our method can achieve the optimal bandwidth utilization of 1553B bus and improvement in efficiency and throughput of *** CONCEPTS • Applied Computing •Physical Sciences and engineering • Aerospace

关键词： busload telemetry 1553B dynamic programming flight software

来源：评论

学校读者我要写书评

暂无评论

PDE-based deployment with communicating leaders for a large-scale multi-agent system

PDE-based deployment with communicating leaders for a large-...

引用

European control Conference (ECC)

作者： Shubham Khansili Anton Selivanov Department of Automatic Control and System Engineering the University of Sheffield Sheffield United Kingdom

We study the deployment of a first-order multi-agent system (MAS) onto a curve in $\mathbb{R}^{n}$. The MAS has a chain topology and two types of agents: leaders and followers. The leaders know their positions relative to the target curve. Neighboring leaders can communicate with one another. Each follower is aware of the intended and existing differences between its state and the states of its two nearest neighbors. To solve the formation control problem, we derive a semi-linear parabolic PDE describing the system when the number of agents is sufficiently large. We derive the stability condition in terms of linear matrix inequalities (LMIs). Using numerical simulations, we demonstrate that increased connectivity between the leaders improves the deployment speed of the MAS.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Research of Adaptive Attitude control Method Considering Disturbance Compensation and Fuzzy Parameter Adjustment

Research of Adaptive Attitude Control Method Considering Dis...

引用

2022 Chinese Automation Congress, CAC 2022

作者： Liu, Xiaodong Zhang, Yu Lin, Yuye Mo, Jiaxuan Zhao, JiKang Beijing Aerospace Automatic Control Institute Beijing China China Academy of Launch Vehicle Technology System Engineering Department Beijing China

ISBN: (纸本)9781665465335

Be directed against the characteristics with respect to faster change of aircraft parameters, higher uncertainty and stronger channel coupling, a robust adaptive design method of aircraft attitude controller is proposed. According to the attitude motion equations during unpowered flight, a nonlinear design model facing for attitude control is first established. Then, according to the as-built design model, a robust dynamic inversion control method based on adaptive multi-variable linear extended state observer is proposed, and it is applied to the design of aircraft full-channel attitude controller through dynamic surface control theory. At the same time, a fuzzy parameter adjustment strategy is proposed to adjust the gain coefficient real-timely along with the margin of the present control ability, which can ensure the matching relationship between control parameters and control ability. Through the analysis on the simulation results, in comparison with one conventional controller, the controller proposed in this research ensures that the aircraft can track the attitude angle command faster and more accurately, and it has strong robust characteristics against time-varying uncertainty. © 2022 IEEE.

关键词： controllers

来源：评论

学校读者我要写书评

暂无评论

Perturbation Event Oriented Dynamic Task Scheduling Algorithm for Parallel Testing of control systems

Perturbation Event Oriented Dynamic Task Scheduling Algorith...

引用

International Conference on Sensing, Diagnostics, Prognostics, and control (SDPC)

作者： Jingyi Chen Shenhang Wang Xiaoxuan Tong Gang Xiang Yang Yu Ziyuan Zhan School of Electronic and Information Engineeer Harbin Institute of Technology Harbin China System Design Department Beijing Aerospace Automatic Control Institute Beijing China Beijing Aerospace Automatic Control Institute Beijing China Department of System Engineering Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (数字)9798350388855

ISBN: (纸本)9798350388862

Task scheduling algorithms are key to research and practice in parallel testing techniques, especially in control system applications. The complexity of control system testing requires higher scheduling efficiency. However, perturbation events caused by test equipment problems, data transmission obstacles, or task changes are almost unavoidable and may reduce the scheduling effectiveness or even lead to system crashes. Therefore, in this paper, based on the analysis of the dynamic test scheduling model, a disturbance factor is designed to judge the urgency of disturbance events for evaluating the dynamic scheduling cycle. On this basis, based on the comprehensive rescheduling index, a suitable adjustment strategy is selected to formulate the dynamic test scheduling scheme. The experimental results show that the algorithm proposed in this paper can achieve fast response capability for different disturbance events and exhibit good adaptivity.

关键词： Scheduling algorithms Perturbation methods Heuristic algorithms Dynamic scheduling control systems Computer crashes Sensors Test equipment Indexes Data communication

来源：评论

学校读者我要写书评

暂无评论

Greenhouse monitoring system based on PLC and wireless sensors

Greenhouse monitoring system based on PLC and wireless senso...

引用

International Conference on control systems and Computer Science (CSCS)

作者： Alexandru Dumitrascu Department of Automatic Control and System Engineering University Politehnica of Bucharest Bucharest Romania

The modern monitoring and control systems that are currently used in most fields are based on intelligent algorithms, distributed management systems, and a new generation of communication buses. For the monitoring and control of the processes inside a greenhouse, the use of sophisticated algorithms or complex devices is not required. However, in order to make the activity more efficient and increase the production of a greenhouse, a proposed solution is to use data management and control devices such as PLCs, and the data acquired from the greenhouse to be retrieved by means of sensors connected to nodes with wireless transmission. The wireless communication variant proved to be the most efficient, in the greenhouse environment being an increased humidity due to the irrigation process of the plants. Also, the need for space for the plants requires giving up the wires drawn through the greenhouse.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：