检索结果-内蒙古大学图书馆

Node-Decomposition Privacy-Preserving for Finite-Time Secondary control of DC Microgrids

IEEE Transactions on Smart Grid 2025年

作者： Wu, Han Zhu, Si-Min Chai, Li Zhu, Zhen-Hua Tian, Yu-Chu Wuhan University of Science and Technology Engineering Research Center of Metallurgical Automation and Measurement Technology School of Artificial Intelligence and Automation Wuhan430081 China Zhejiang University State Key Laboratory of Industrial Control Technology College of Control Science and Engineering Hangzhou310027 China Huzhou Institute of Industrial Control Technology Huzhou China Queensland University of Technology School of Computer Science BrisbaneQLD4001 Australia

In the distributed secondary control of DC microgrids, achieving both rapid convergence and robust information security is critical for enhancing control performance and maintaining power quality. However, current privacy-preserving approaches often compromise either control performance or privacy preservation performance. To address this challenge, this paper presents a node-decomposition privacy-preserving (NDPP) method for fully distributed, finite-time secondary control in DC microgrids. By splitting each node in the communication graph into multiple sub-nodes, the method enhances both convergence speed and privacy preservation without sacrificing control accuracy. Sub-nodes communicate within groups, and the topology of the generated graph is concealed from malicious nodes and eavesdroppers. Theoretical analysis is provided to prove finite-time voltage regulation and current sharing with privacy preservation against malicious nodes and external eavesdroppers. Simulations are conducted to verify the effectiveness of the method in maintaining control performance and power quality. © 2010-2012 IEEE.

关键词： Privacy by design

来源：评论

学校读者我要写书评

暂无评论

考虑装配误差影响的齿轮副啮合特性优化（英文）

引用

Journal of Central South University 2025年第4期32卷 1400-1430页

作者：赵晓剑马辉马泽宇刘家奇曹鹏吴玉萍丁相符赵天宇 School of Mechanical Engineering and Automation Northeastern University Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education Northeastern University AECC Hunan Aviation Powerplant Research Institute School of Science Northeastern University

齿轮装配误差会导致系统振动和噪声增大，影响系统的稳定性。这种影响可以通过齿轮微观修形得到补偿。首先，提出了一种考虑微观修形和耦合装配误差的改进三维轮齿加载接触分析(3D-LTCA)方法，并利用MASTA软件以及三个案例验证了该方法... 详细信息

齿轮装配误差会导致系统振动和噪声增大，影响系统的稳定性。这种影响可以通过齿轮微观修形得到补偿。首先，提出了一种考虑微观修形和耦合装配误差的改进三维轮齿加载接触分析(3D-LTCA)方法，并利用MASTA软件以及三个案例验证了该方法的准确性；其次，基于BP神经网络建立修形参数与啮合力学参数之间映射的代理模型(SM)，验证其有效性性，并将建立的代理模型与常用的Kriging、支持向量回归(SVR)、多项式回归响应面法(RSM)等代理模型进行了对比，从而进一步说明了本文代理模型的优越性；最后，引入SM建立以啮合刚度波动最小和啮合表面载荷分布更均匀为目标的优化模型。结果表明，即使考虑网络训练时间，通过代理模型优化齿轮副的效率仍远高于LTCA方法。优化后，带耦合装配误差的齿轮副的啮合刚度波动减小了34.10%，啮合面左右区域的平均接触应力差减小了62.84%。

关键词：斜齿轮啮合特性轮齿修形装配误差神经网络多目标优化

来源：评论

学校读者我要写书评

暂无评论

A novel internal crack detection method for photovoltaic (PV) panels based on the air-coupled ultrasonic

引用

Sensors and Actuators A: Physical 2025年 392卷

作者： Sun, Tianyi Bai, Tianyang Cao, Shengxian Fan, Siyuan Zhang, Yanhui School of Automation Engineering Northeast Electric Power University Jilin132012 China Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China School of Control and Computer Engineering North China Electric Power University Beijing102206 China

Accurately assessing the potential risk of cracks in photovoltaic (PV) panels is crucial for improving the system's energy conversion efficiency and safety. This paper develops a novel internal crack detection device for PV panels based on air-coupled ultrasonics and establishes a dedicated model for PV panel crack detection. Considering the anisotropy of silicon, the Rayleigh–Lamb equation is first used to obtain the dispersion curve of Lamb waves. The continuous wavelet transform (CWT) is then applied to analyze the A0 mode Lamb wave echo signals within a single cycle to distinguish between cracked and non-cracked regions. Further, the original signal is enhanced using singular value decomposition (SVD) to strengthen the signal features, and a direct relationship model between the signal echo and the crack length is proposed. Finally, the model's validity is verified by measuring actual crack data from PV panels. The results show that the optimal frequency of Lamb waves for crack detection in PV panels is 200 kHz, with an attenuation coefficient of 6.4 dB/mm and incidence and exit angles of 11°. Compared to electroluminescence (EL) and inductive thermal imaging methods, the proposed approach achieves higher accuracy, reaching 84.26%. © 2025

关键词： Image enhancement

来源：评论

学校读者我要写书评

暂无评论

Resilient Formation control Based on Watermarks for Networked Quadrotors under Deception Attacks

引用

IEEE Transactions on Vehicular Technology 2025年

作者： Zhan, Weiwei Miao, Zhiqiang Zeng, Jianxin Chen, Yanjie Wu, Zheng-Guang He, Wei Wang, Yaonan Hunan University College of Electrical and Information Engineering Changsha410082 China Fuzhou University School of Mechanical Engineering and Automation Fuzhou350108 China National Engineering Research Center of Robot Visual Perception and Control Technology Changsha410082 China Zhejiang University Institute of Cyber-Systems and Control Hangzhou310027 China University of Science and Technology Beijing Key Laboratory of Intelligent Bionic Unmanned Systems Ministry of Education School of Intelligence Science and Technology Institute of Artificial Intelligence Beijing100083 China

This article addresses the problem of formation control of networked UAVs under deception attacks. A lightweight resilient formation control framework based on watermarks is proposed to achieve the desired formation configuration without extra monitoring attack status. Since deception attacks are covert, the shared information is watermarked before transmission to establish the protocol among networked UAVs. To facilitate the resilient formation controller design, a decoder is first developed to decipher the inverse transformation of deception attacks, where the watermark is the criterion for approximating the inverse transformation. The Gauss error function is introduced to eliminate some unrealistic input commands under deception attacks, obtaining the predefined input performance. Then, a resilient formation controller is developed to guarantee the global boundedness of all signals within the inner-loop and outerloop system, while the formation error converges to a small neighborhood of zero by solving the linear matrix inequality. Two challenging deception attack examples in simulations and experiments are conducted to verify the effectiveness and performance of the proposed resilient formation control framework. © 1967-2012 IEEE.

关键词： Inverse transforms

来源：评论

学校读者我要写书评

暂无评论

Domain transfer spatiotemporal graph network for predicting key indicators in multimode chemical processes

引用

Chemical engineering Science 2025年 314卷

作者： Zhu, Jialiang Yang, Chao Liu, Yi Institute of Process Equipment and Control Engineering Zhejiang University of Technology Hangzhou310023 China State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang110819 China

In modern chemical industries, soft sensors related to key indicators are crucial in production processes, particularly for multimode chemical processes. However, challenges arise from scarce labeled data and constant process shifts, which complicate the development of these sensors. Additionally, complex process variable interactions hinder prediction interpretability. This work develops a domain transfer spatiotemporal graph network (DTSGN) regression model, tailored for cross-domain modeling in multimode chemical processes. The DTSGN model first employs graph convolution to capture spatial dependencies and gating mechanism to track temporal relationships. A Bernoulli-distributed perturbation graph enhances model robustness. By embedding constraints into conditional distribution discrepancy, the parameters for DTSGN are calibrated under the fine-tuning paradigm for new mode. Therefore, the model extends its applicability to address process shifts in multimode chemical processes. A graph explainer finally ensures interpretability by aligning learned variable graph with process knowledge, and two multimode cases evidence the proposed model's efficacy and superiority. © 2025 Elsevier Ltd

关键词： Chemical industry

来源：评论

学校读者我要写书评

暂无评论

Evolving temporal convolutional neural networks for modeling turntable servo systems

引用

Applied Soft Computing 2025年 172卷

作者： Xie, Cheng Xue, Bing Zhang, Mengjie Chen, Songlin Liu, Yang Control and Simulation Center School of Astronautics Harbin Institute of Technology Heilongjiang Harbin150001 China Centre for Data Science and Artificial Intelligence & School of Engineering and Computer Science Victoria University of Wellington Wellington6140 New Zealand Shenyang Institute of Automation Chinese Academy of Sciences Liaoning Shenyang110169 China

Turntable servo systems are important experimental equipment used for semi-physical simulation and testing of aircraft, which have very strict requirements for tracking performance. To achieve high-precision servo performance, some advanced model-based control methods have been used recently, but the control performance is greatly influenced by the accuracy of the model. Therefore, this paper proposes evolving temporal convolutional networks (TCNs) for accurately modeling turntable servo systems. Considering the advantages of TCNs in capturing local dependencies in sequence data and parallel computing, a TCN is adopted to compensate the unmodeled dynamics to significantly improve the accuracy of the existing dynamics model. Then, an evolutionary algorithm (EA) based architecture optimization algorithm for the above TCN model is proposed, and the network performance is continuously improved by simulating the population evolution in nature. Finally, the weight inheritance method is utilized to evaluate the performance of individuals during the evolution process to effectively improve the execution efficiency of the whole algorithm. In addition, the subnets inherited from the supernet meet the real-time requirements of the actual tasks by setting real-time constraints on the supernet. The experimental results demonstrate the superiority of the proposed model against the peer competitors in terms of the prediction performance. In addition, the proposed optimization algorithm also shows higher execution efficiency as verified by ablation experiments. © 2025 Elsevier B.V.

关键词： Evolutionary algorithms (EAs) System identification and modeling Temporal convolutional networks (TCNs) Turntable servo systems

来源：评论

学校读者我要写书评

暂无评论

Distributed Data-Driven Secure Cooperative control for a Connected Homogeneous Vehicle Platoon Under Denial-of-Service Attacks

引用

IEEE Transactions on Vehicular Technology 2025年

作者： Zhu, Panpan Jin, Shangtai Bu, Xuhui Hou, Zhongsheng Shi, Lei Zhou, Yi Henan University School of Artificial Intelligence Zhengzhou450046 China Beijing Jiaotong University Institute of Advanced Control System the School of Automation and Intelligence Beijing100044 China Henan Polytechnic University School of Electrical Engineering and Automation Henan 454000 China Qingdao University School of Automation Qingdao266071 China

This paper investigates a distributed data-driven secure coordination (DDDSC) control strategy for a connected homogeneous vehicle (CHV) platoon under denial of service (DoS) attacks. First, a DoS attack model is established based on the characteristics of DoS attacks, and a corresponding attack compensation algorithm is given. Then, a novel distributed data-driven CHV platoon coordination control method is designed using a radial basis function neural network (RBFNN). The convergence speed and accuracy of the control algorithm are enhanced by approximating and predicting the time-varying parameter pseudo gradient (PG) that characterizes the input-output relationship estimation. Theoretical analysis shows that the proposed algorithm ensures individual vehicles' internal stability and the platoon system's string stability when subjected to DoS attacks. Finally, a group of virtual simulation control experiments compares the tracking control effects of the CHV platoon under different algorithms in the presence of the same DoS attack, verifying the effectiveness and practicality of the proposed DDDSC control method. © 1967-2012 IEEE.

关键词： Stabilization

来源：评论

学校读者我要写书评

暂无评论

Simulation-Based Metrological Temperature Ensuring and control of the Temperature Field in an Induction Furnace Based on Various Parameters

Simulation-Based Metrological Temperature Ensuring and Contr...

引用

International Conference on Computer and automation engineering, ICCAE

作者： Jan Rybář Samuel Emebu Sayed Yousuf Sayed Sohaibullah Zarghoon Lukáš Bartalský Peter Onderčo Andrej Smetánka Radek Matušů Faculty of Mechanical Engineering Institute of Automation Informatization and Measurement Slovak University of Technology Bratislava Slovakia Department of Separation Science LUT School of Engineering Science Lappeenranta-Lahti University of Technology Lappeenranta Finland Department of Auto mechanical Engineering Faculty of Electro-Mechanic Kabul Polytechnic University Kabul Afghanistan Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Zlín Czech Republic

ISBN: (数字)9798331533816

ISBN: (纸本)9798331533823

Induction heating is widely used in industrial furnaces because of its rapid response time and high energy efficiency. To design and optimize these furnaces, computer-aided simulations are essential. This study aims to develop an accurate temperature field model for a square cross-section steel billet in an induction furnace by leveraging various parameters in COMSOL Multiphysics software. The simulation analysis incorporated temperature dynamics, considering skin depth, temperaturedependent, and constant parameters of the steel billet. The datadriven model was converted into a state-space representation utilizing MATLAB's System Identification Toolbox. This conversion facilitated the design of a Linear Quadratic Regulator (LQR) with integral gain and pole placement. Further, these controllers' performance was analyzed, and controllers were successfully implemented to regulate the temperature field of the billet from initial temperature to reference temperature, utilizing the distributed parameter system control circuit.

关键词： Billets Analytical models Temperature Accuracy Computational modeling Furnaces Mathematical models Temperature control Steel Induction heating

来源：评论

学校读者我要写书评

暂无评论

Robust Adaptive Fixed-Time Consensus for Nonlinear High-Order Multi-Agent Systems

引用

IEEE Transactions on automation Science and engineering 2025年 22卷 15832-15845页

作者： Jiale Li Guofei Li Zheng Guo Zongyu Zuo Xiaojing Zheng School of Aeronautics and the Institute of Extreme Mechanics Northwestern Polytechnical University Xi’an China School of Astronautics Northwestern Polytechnical University Xi’an China School of Automation Science and Electrical Engineering Beihang University Beijing China Science and Technology on Aircraft Control Laboratory Beijing China School of Information Mechanics and Sensing Engineering Xidian University Xi’an China

This paper investigates the consensus problem of leader-follower nonlinear high-order multi-agent systems through a fully distributed approach. A distributed consensus tracking control scheme is proposed, embedding a fixed-time convergent command filter with adaptive gain to ensure that the filter error ultimately reaches the origin. To tackle the challenges posed by unknown bounds of system nonlinearities and external disturbances, a robust control protocol is developed, incorporating an adaptive mechanism to implement compensatory action instead of directly estimating the lumped uncertainty. A notable feature of the proposed approach lies in its capability to determine the settling time bound without any global information, including the number of nodes, the eigenvalue of the Laplacian matrix, and other unknown parameters. The efficacy of the developed methodology is validated through numerical simulations and physical experiment conducted on a multi-motor system. Note to Practitioners—In contemporary engineering systems, the consensus tracking control of high-order multi-agent systems has emerged as a significant research topic. This paper proposes a fully distributed control scheme to achieve fixed-time consensus tracking. Unlike conventional finite-time and fixed-time approaches, the upper bound of the convergence time in this paper is independent of any global information and system’s initial states. Practical operational environments frequently introduce complex nonlinearities and disturbances into physical systems. To address this challenge, an adaptive mechanism is integrated into the robust control protocol. Importantly, the number of adaptive parameters remains fewer, irrespective of the number of uncertain parameters or the dimension of disturbances and nonlinearities. The feasibility of the proposed scheme is demonstrated via a physical experiment executed on a multi-motor system. In future research, we will simultaneously consider input saturation cons

关键词： Multi-agent systems Protocols Convergence Robust control Topology Eigenvalues and eigenfunctions Laplace equations Filtering theory Adaptive control Information filters

来源：评论

学校读者我要写书评

暂无评论

Electromagnetic stealth technology: A review of wave-absorbing structures

引用

Materials and Design 2025年 253卷

作者： Guan, Chenglong Su, Sihang Wang, Bing Zhong, Jianfeng Chen, Junhao Sun, Fuwei Zhan, Lihua Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and Automation Fuzhou University Fuzhou350108 China Institute of Precision Instrument and Intelligent Measurement & Control Fuzhou University Fuzhou350108 China School of Mechanical and Electrical Engineering Central South University Changsha410083 China

As the core combat force for gaining air superiority, fighter aircraft directly influence the course and outcome of modern warfare. To address the integrated operational mode of reconnaissance, command, control and strike under the development of optoelectronics and information technology, and improve the battlefield survivability and combat effectiveness, electromagnetic stealth performance has become a key feature for next-generation combat aircraft. On the basis of rational aerodynamic shaping to minimize the radar cross-section, the application of electromagnetic absorbing technology plays a pivotal role in further enhancing the stealth performance. In this paper, the research progress of electromagnetic absorbing technology is summarized in light of the demand for the development of high-performance collaborative combat capabilities for military fighters. Focusing on the most revolutionary direction-the electromagnetic absorbing structure, the challenges associated with its maneuverability, stealth, and operational applicability are analyzed. Furthermore, from the perspectives of material selection, structural design, and process optimization, the paper systematically discusses ways to enhance the overall performance of electromagnetic absorbing structures and offers recommendations for forthcoming research directions. © 2025 The Author(s)

关键词： Radar cross section

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：