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Chinese control and Decision Conference, CCDC

作者： Yongqing Fan Tiantian xiao School of Automation Xi'an Key Laboratory of Advanced Control and Intelligent Process Xi’an University of Posts and Telecommunications Xi’an

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

A novel distributed feedback adaptive control firstly is developed for the stabilization tracking for a class of multi-agent robot manipulator system with unstructured model. In this study, the dynamical behavior of the leader system can be tracked perfectly by the states of each multi-agent robot manipulator system with 2 or 3 degrees of freedom (DOF) through the controller with the similar characters of its own structure, the similar elements such as matrices or vectors that are used to design a distributed feedback control with coupling weights adaptive laws and neural network weights online, in which these relative similar information of the follower agents and leader system can be calculated by the proposed algorithm according to the characters of each agent robot manipulator and the reference leader system. This method extends the existing works with identical multi-agent systems and leader system to nonidentical multi-agent systems with different dimensions contrast to other results in many literatures. Finally, the good stabilization performances are demonstrated to multi-agent robot manipulator system.

关键词： Multi-agent systems Manipulator dynamics Robot kinematics Interconnected systems

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Type-2 Fuzzy Adaptive control For Uncertain Robot Manipulator System With Time-Varying Output Constraints

Type-2 Fuzzy Adaptive Control For Uncertain Robot Manipulato...

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Chinese control and Decision Conference, CCDC

作者： Yongqing Fan Tongtong Kang School of Automation Xi’an Key Laboratory of Advanced Control and Intelligent Process Xi’an University of Posts and Telecommunications Xi’an

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

A novel adaptive control design method based on type-2 fuzzy logic system is proposed in this paper. The controller is to solve the stability problem of n-link manipulator system with time-varying output constraints in complex environment. Through the analysis of type-2 fuzzy logic systems, a new and original universal approximator with parameter is proposed to equalize the un-certainties in robot manipulator system. The main advantages of this design method one is that the computational burden of online learning can be reduced greatly, another merit is more smaller tracking error can be ensured, and the output or position of the robot manipulator system are constrained by time-varying output. In addition to these, the idea of this paper extends the semi-global stability to global stability compares to the traditional fuzzy adaptive controls. The effectiveness of the method is demonstrated by simulation results.

关键词： Fuzzy logic Manipulators Time-varying systems Uncertainty Adaptive control Stability analysis

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Type-2 Fuzzy Adaptive control For Uncertain Robot Manipulator System With Time-Varying Output Constraints

Type-2 Fuzzy Adaptive Control For Uncertain Robot Manipulato...

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第32届中国控制与决策会议

作者： Yongqing Fan Tongtong Kang School of Automation Xi’an Key Laboratory of Advanced Control and Intelligent ProcessXi’an University of Posts and Telecommunications

A novel adaptive control design method based on type-2 fuzzy logic system is proposed in this *** controller is to solve the stability problem of n-link manipulator system with time-varying output constraints in complex *** the analysis of type-2 fuzzy logic systems,a new and original universal approximator with parameter is proposed to equalize the un-certainties in robot manipulator *** main advantages of this design method one is that the computational burden of online learning can be reduced greatly,another merit is more smaller tracking error can be ensured,and the output or position of the robot manipulator system are constrained by time-varying *** addition to these,the idea of this paper extends the semi-global stability to global stability compares to the traditional fuzzy adaptive *** effectiveness of the method is demonstrated by simulation results.

关键词： Type-2 fuzzy logic system Adaptive control Time-varying output Robot manipulator

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Robust H Sliding Mode controller Design of a Class of Time-Delayed Discrete Conic-Type Nonlinear Systems

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IEEE Transactions on Systems, Man, and Cybernetics: Systems 2021年第2期51卷 885-892页

作者： He, Shuping Lyu, Weizhi Liu, Fei Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei China Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Jiangnan University Wuxi China

This paper studies the {H}_{ {\infty }} sliding mode control (SMC) problem for a class of discrete-time conic-type nonlinear systems with time-delays and uncertainties. The nonlinear terms satisfy the conic-type constraint condition that lies in a know hyper-sphere with an uncertain center. By choosing a proper Lyapunov candidate, sufficient conditions are derived to ensure the asymptotic stability of the sliding mode dynamics while achieving a prescribed {H}_{ {\infty }} disturbance attenuation level and finally converted into a minimization problem. The controller is constructed to guarantee the discrete-time reach condition and maintain the states on the prespecified sliding surface. A simulation result and a practical example related to the Chua's circuit are given at last to show the validity of our SMC strategy. © 2013 IEEE.

关键词： Time delay

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Robust H∞ Consensus control for a Class of Nonlinear Multi-agent Systems with Similar Structure

Robust H∞ Consensus Control for a Class of Nonlinear Multi-...

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第三十九届中国控制会议

作者： Yongqing Fan Yue An School of Automation Xi’an Key Laboratory of Advanced Control and Intelligent ProcessXi’an University of Posts and Telecommunications

A novel robust H consensus control for nonlinear multi-agent systems with similar structure is proposed in this *** structure of multi-agent systems is first introduced,the similar parameters are utilized to synthesize consensus control for a class of multi-agent systems with nonidentical *** on linear matrix inequality(LMI),sufficient conditions can be derived to ensure that all states in follower systems asymptotically converge to the states of leader with a given prescribed *** salient advantage of the designing control approach is that the consensus of different dimension in multi-agent systems with similar structure also can be ***,examples of multi-agent systems with identical and nonidentical dimensions are provided to demonstrate the validity of the proposed theoretical results.

关键词： Consensus Nonlinear Multi-agent Systems Similar Structure Robust H∞control

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Fault Localization and State Estimation of Power Grid under Parallel Cyber-Physical Attacks

arXiv

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arxiv 2025年

作者： Ren, Junhao Zhao, Kai Zhang, Guangxiao Liu, xinghua Zhai, Chao xiao, Gaoxi School of Electrical and Electronic Engineering Nanyang Technological University Singapore639798 Singapore Institute of Catastrophe Risk Management Nanyang Technological University Singapore639798 Singapore Future Resilient Systems Singapore-ETH Centre Singapore138602 Singapore School of Electrical Engineering Xi’an University of Technology Xi’an710048 China Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems The Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China

Parallel cyber-physical attacks (PCPA) refer to those attacks on power grids by disturbing/cutting off physical transmission lines and meanwhile blocking transmission of measurement data to dwarf or delay the system protection and recovery actions. Such fierce hostile attacks impose critical threats to the modern power grids when there is a fusion of power grids and telecommunication technologies. In this paper, we investigate the fault diagnosis problem of faulty transmission lines under a broader spectrum of PCPA for a linearized (or DC) power flow model. The physical attack mechanism of PCPA includes not only disconnection but also admittance value modification on transmission lines, for example, by invading distributed flexible AC transmission system (D-FACTS). To tackle the problem, we first recover the information of voltage phase angles within the attacked area. Using the information of voltage phase angle and power injection of buses, a graph attention network-based fault localization (GAT-FL) algorithm is proposed to find the locations of the physical attacks. By capitalizing on the feature extraction capability of the GAT on graph data, the fault localization algorithm outperforms the existing results when under cyber attacks, e.g., denial of service (DoS) attacks. A line state identification algorithm is then developed to identify the states of the transmission lines within the attacked area. Specifically, the algorithm restores the power injection of buses within the attacked area and then identities the state of all the transmission lines within the attacked area by solving a linear programming (LP) problem. Experimental simulations are conducted on IEEE 30/118 bus standard test cases to demonstrate the effectiveness of the proposed fault diagnosis algorithms. Copyright © 2025, The Authors. All rights reserved.

关键词： Cyber attacks

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Distributed Adaptive Neural Network Stabilization control for a Class of Uncertain Multi-agent Systems with Different Dimensions

Distributed Adaptive Neural Network Stabilization Control fo...

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第32届中国控制与决策会议

作者： Yongqing Fan Tiantian xiao School of Automation Xi’an Key Laboratory of Advanced Control and Intelligent ProcessXi’an University of Posts and Telecommunications

A novel distributed feedback adaptive control firstly is developed for the stabilization tracking for a class of multi-agent robot manipulator system with unstructured *** this study,the dynamical behavior of the leader system can be tracked perfectly by the states of each multi-agent robot manipulator system with 2 or 3 degrees of freedom（DOF） through the controller with the similar characters of its own structure,the similar elements such as matrices or vectors that are used to design a distributed feedback control with coupling weights adaptive laws and neural network weights online,in which these relative similar information of the follower agents and leader system can be calculated by the proposed algorithm according to the characters of each agent robot manipulator and the reference leader *** method extends the existing works with identical multi-agent systems and leader system to nonidentical multi-agent systems with different dimensions contrast to other results in many ***,the good stabilization performances are demonstrated to multi-agent robot manipulator system.

关键词： Neural network（NN） distributed control adaptive control similar property multi-agent system robot manipulator

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Trajectory Tracking for Directional Drilling in Underground Coal Mine Using Robust Model Predictive control 26

Trajectory Tracking for Directional Drilling in Underground ...

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26th International Conference on Industrial Technology, ICIT 2025

作者： Wu, Jiajun Lu, Chengda Li, Hao Wei, Hongchao Wu, Min School of Future Technology China University of Geosciences Wuhan430074 China School of Automation China University of Geosciences Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China Xi'an Research Institute Co. Ltd. China Coal Technology and Engineering Group Xi'an710077 China China Coal Research Institute Beijing100013 China

ISBN: (纸本)9798331521950

This paper studies the problem of trajectory tracking control for directional drilling in underground coal mine by devising a robust model predictive control method. First, a directional drilling trajectory extension model is obtained by the linearization of a drilling tool kinematic model through the Taylor series expansion in the borehole depth domain. Then, in view of the influence of the uncertainty of the drilling tool slope and external interference, a robust model predictive control method is introduced in the form of an optimal control problem. A sufficient condition is obtained to calculate the corresponding controller gain matrix on the premise of satisfying the stability of the closedloop control system and the H∞ performance index. At last, the effectiveness of our method is illustrated through simulation analysis. Compared with model predictive control, robust model predictive control directly incorporates the uncertainty of the drilling tool slope and external interference into the control design, enabling it to better adapt to the complex and variable underground coal mine environment. © 2025 IEEE.

关键词： Predictive control systems

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Competition and Cooperation Mechanism Between Agency Selling and Wholesale: An Application of the Emerging E-commerce Model

Competition and Cooperation Mechanism Between Agency Selling...

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IEEE International Conference on Industrial Engineering and Engineering Management

作者： Haonan Wang C. K. M. Lee Ping Ji Gang Li Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hong Kong China Laboratory for Artificial Intelligence in Design Hong Kong Science Park New Territories Hong Kong SAR China School of Intelligent Finance and Business XJTLU Entrepreneur College (Taicang) Xi'an Jiaotong - Liverpool University China School of Management Xi'an Jiaotong University The State Key Lab for Manufacturing Systems Engineering The Key Lab of the Ministry of Education for Process Control and Efficiency Engineering Xi'an China

Recently, the platform economy allows enterprises to collaborate with business partners and provide additional channels for various parties. E-commerce platforms have become integral channels for connecting suppliers with consumers. In the platform economy, agency selling and reselling are two predominant sales models that often coexist for the same product types, resulting in a competitive relationship. This study analyzes transaction data for 30,000 Stock Keeping Units (SKUs) provided by the Chinese e-commerce platforms over one month. We employ three models to compare the sales quantity and profits of manufacturers and online platforms and to identify the most efficient mode for stakeholders based on the model establishment and empirical evidence. Our findings suggest that apart from the existing channel to provide products to customers, manufacturers enter the platform which will increase the profit of platform operators. On the other hand, platform operators may also affect the profit of the manufacturers.

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Resource-Efficient Direct Characterization of General Density Matrix

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Physical Review Letters 2024年第3期132卷 030201-030201页

作者： Liang Xu Mingti Zhou Runxia Tao Zhipeng Zhong Ben Wang Zhiyong Cao Hongkuan xia Qianyi Wang Hao Zhan Aonan Zhang Shang Yu Nanyang Xu Ying Dong Changliang Ren Lijian Zhang College of Metrology & Measurement Engineering China Jiliang University Hangzhou 310018 China National Laboratory of Solid State Microstructures Key Laboratory of Intelligent Optical Sensing and Manipulation College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China Research Center for Quantum Sensing Zhejiang Lab Hangzhou 310000 China School of Electronic Control Chang’an University Xi’an 710064 China Quantum Optics and Laser Science Blackett Laboratory Imperial College London Prince Consort Road London SW7 2AZ United Kingdom Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan Province Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications Hunan Normal University Changsha 410081 China

Sequential weak measurements allow for the direct extraction of individual density-matrix elements, rather than relying on global reconstruction of the entire density matrix, which opens a new avenue for the characterization of quantum systems. Nevertheless, extending the sequential scheme to multiqudit quantum systems is challenging due to the requirement of multiple coupling processes for each qudit and the lack of appropriate precision evaluation. To address these issues, we propose a resource-efficient scheme (RES) that directly characterizes the density matrix of general multiqudit systems while optimizing measurements and establishing a feasible estimation analysis. In the RES, an efficient observable of the quantum system is constructed such that a single meter state coupled to each qudit is sufficient to extract the corresponding density-matrix element. An appropriate model based on the statistical distribution of errors is utilized to evaluate the precision and feasibility of the scheme. We have experimentally applied the RES to the direct characterization of general single-photon qutrit states and two-photon entangled states. The results show that the RES outperforms sequential schemes in terms of efficiency and precision in both weak- and strong-coupling scenarios. This Letter sheds new light on the practical characterization of large-scale quantum systems and the investigation of their nonclassical properties.

关键词： Optical quantum information processing Quantum foundations Quantum measurements Quantum tomography Weak values & weak measurements Weak measurements

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