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International Conference on Communications and Electronics, ICCE

作者： Tuan Anh Do Duy Phuoc Pham Ba Manh Nguyen Van Tung Dau Dang Tien Hoang Quang Dich Nguyen Bao Binh Pho Phuong Vu Hoang Hanoi University of Science and Technology Hanoi Vietnam Institute for Control Engineering and Automation Hanoi Vietnam Hanoi University of Civil Engineering Hanoi Vietnam

ISBN: (数字)9798350379792

ISBN: (纸本)9798350379808

This paper focuses on the 3-phase Current-fed Dual active bridge (3P-CFDAB) converter in an AC Battery application due to its high power rate and efficiency. In this research, firstly, a small signal model for the 3P-CFDAB is designed in discharging mode. Secondly, the control structure for this converter is proposed in this mode, to support the grid at peak load or even grid blackout. Finally, the small signal model is verified by the multitone analysis by PLECS while the control design is performed with an additional soft-start procedure by MATLAB/ SIMULINK. The simulation results show a good agreement with the theoretical analysis.

关键词： Bridges control design Software packages Simulation Modulation Mathematical models Batteries

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Collective Entity Alignment for Knowledge Fusion of Power Grid Dispatching Knowledge Graphs

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IEEE/CAA Journal of Automatica Sinica 2022年第11期9卷 1990-2004页

作者： Linyao Yang Chen Lv Xiao Wang Ji Qiao Weiping Ding Jun Zhang Fei-Yue Wang the State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190 the School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China the China Electric Power Research Institute Beijing 100192China IEEE the Qingdao Academy of Intelligent Industries Qingdao 256200China the School of Information Science and Technology Nantong UniversityNantong 226019China the School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072China

Knowledge graphs(KGs)have been widely accepted as powerful tools for modeling the complex relationships between concepts and developing knowledge-based *** recent years,researchers in the field of power systems have explored KGs to develop intelligent dispatching systems for increasingly large power *** multiple power grid dispatching knowledge graphs(PDKGs)constructed by different agencies,the knowledge fusion of different PDKGs is useful for providing more accurate decision *** achieve this,entity alignment that aims at connecting different KGs by identifying equivalent entities is a critical *** entity alignment methods cannot integrate useful structural,attribute,and relational information while calculating entities’similarities and are prone to making many-to-one alignments,thus can hardly achieve the best *** address these issues,this paper proposes a collective entity alignment model that integrates three kinds of available information and makes collective counterpart *** model proposes a novel knowledge graph attention network(KGAT)to learn the embeddings of entities and relations explicitly and calculates entities’similarities by adaptively incorporating the structural,attribute,and relational ***,we formulate the counterpart assignment task as an integer programming(IP)problem to obtain one-to-one *** not only conduct experiments on a pair of PDKGs but also evaluate o ur model on three commonly used cross-lingual *** comparisons indicate that our model outperforms other methods and provides an effective tool for the knowledge fusion of PDKGs.

关键词： Entity alignment integer programming(IP) knowledge fusion knowledge graph embedding power dispatch

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Design of Privacy Mechanism for Cyber Physical Systems: A Nash Q-learning Approach

Design of Privacy Mechanism for Cyber Physical Systems: A Na...

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2022 Chinese automation Congress, CAC 2022

作者： Zhang, Qirui Meng, Siqi Liu, Kun Dai, Wei China University of Mining and Technology School of Information and Control Engineering Xuzhou221116 China Beijing Institute of Technology School of Automation Beijing100081 China

ISBN: (纸本)9781665465335

This paper studies the problem of designing optimal privacy mechanism with less energy cost. The eavesdropper and the defender with limited resources should choose which channel to eavesdrop and defend, respectively. A zero-sum stochastic game framework is used to model the interaction between the two players and the game is solved through the Nash Q-learning approach. A numerical example is given to verify the proposed method. © 2022 IEEE.

关键词： Cyber Physical System

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Sufficient conditions and limitations of equivalent partition in multiagent controllability

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Science China(Information Sciences) 2022年第3期65卷 152-166页

作者： Junhao GUO Zhijian JI Yungang LIU Shandong Key Laboratory of Industrial Control Technology Institute of Complexity ScienceCollege of Automation Qingdao University School of Control Science and Engineering Shandong University

The emergence of the graphical characterization of multiagent controllability has raised several issues concerning how to directly establish controllability from topology structures. Arguably, one of the most serious challenges to this research field is the means through which equivalent partition, which plays an important role in graphical characterization, obtains sufficient controllability conditions; hence, how equivalent partition influences controllability has garnered considerable attention. This article specifically focuses on the sufficient conditions and limitations of equivalent partition in multiagent controllability. We provide two sufficient conditions:(i) the absence of the system matrix's eigenvectors that make the equation formed by the eigenvalues and eigenvectors hold and(ii) the addition of leaders by reducing the same number of followers. The first condition particularly exhibits a relation between two apparently unrelated parts: Tao's equation and controllability. We further propose a necessary and sufficient condition for controllability under n-node graphs(n 5) by taking advantage of iso-neighbor nodes, and analyze the resulting difficulties when n is greater than 5. Immediate corollaries of our results are obtained. Finally, we reveal the limitation of equivalent partition in controllability analysis. Several constructive examples demonstrate our results.

关键词： multiagent system controllability equivalent partition Tao’s equation graph theory

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Raster Map Path Planning Based on Intelligent Optimization Algorithms 3

Raster Map Path Planning Based on Intelligent Optimization A...

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3rd International Conference on Advanced Algorithms and Neural Networks, AANN 2023

作者： Suo, Meixia Zhang, Yongli Wang, Lili Li, Xinqi School of Automation and Electrical Engineering Tianjin University of Technology and Education Tianjin China Tianjin Key Laboratory of Information Sensing and Intelligent Control Tianjin China School of Informatics Beijing Institute of Technology Guangdong Zhuhai China

ISBN: (纸本)9781510668355

To solve the problem of obstacle avoidance cars find the shortest path without collision between two locations. Firstly, the method of building a raster map is used in MATLAB to simulate the working environment of the trolley. Secondly, a hybrid algorithm combining particle swarm algorithm and genetic algorithm is proposed, and it is applied to the path optimization of the trolley. The hybrid algorithm combines the traditional particle swarm algorithm and the genetic algorithm, retains the speed and position iteration mode of the particle swarm algorithm, and integrates the cross and mutation operations in the genetic algorithm. The results show that compared with the traditional particle swarm algorithm and genetic algorithm, the hybrid algorithm can enhance the ability to jump out of local extremes in the process of population search, improve the convergence progress of the algorithm, and ensure that the obstacle avoidance trolley can find a more suitable moving path between the starting point and the target point. © 2023 SPIE. All rights reserved.

关键词： Motion planning

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Adaptive finite-time command filtered position control for DP ship in level ice 2

Adaptive finite-time command filtered position control for D...

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2024 2nd International Conference on Applied Statistics, Modeling and Advanced Algorithms, ASMA 2024

作者： Liu, Caiyun Shao, Chunrui Chen, Xinghua Liu, Qian Zheng, Zhenming College of Automation Harbin University of Science and Technology Heilongjiang Harbin150080 China College of Intelligent Systems Science and Engineering Harbin Engineering University Heilongjiang Harbin150001 China Beijing Institute of Control and Electronic Technology Beijing100000 China Zhejiang Huadong Geotechnical Investigation & Design Institute Co. Ltd. Zhejiang Hangzhou310030 China

This work suggests an adaptive limited-time command filtering control method for moving ships around in the Arctic. It does a good job of solving the thruster dynamics problem while taking into account uneven ice loads, model errors, and unknown changes in the environment. In the DP system, the neural network system is used to get close to the unclear function. A finite-time control law is meant to get the ship to the point and course that the captain wants by using estimates. Lyapunov analysis showed that the closed-loop system as a whole is stable, which means that all signals are still limited in time. Number-based simulations have shown that the suggested control strategy works. © Published under licence by IOP Publishing Ltd.

关键词： Adaptive filtering

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Combined Adaptive Backstepping and LQR control for Inverted Pendulum 3

Combined Adaptive Backstepping and LQR Control for Inverted ...

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3rd IEEE International Conference on Information Technology, Big Data and Artificial Intelligence, ICIBA 2023

作者： Li, Xiaolin Zhang, Yongli Si, Wei Li, Xinqi Pang, Dangfeng Tianjin University of Technology and Education School of Automation and Electrical Engineering Tianjin China TianJin Keylaboratory of Information Sensing & Intelligent Control Tianjin China School of Information Technology Beijing Institute of Technology Guangdong Zhuhai China

ISBN: (纸本)9781665490788

In this paper, a control strategy using adaptive backstepping control combined with optimal control is proposed to solve the problem of stable control of a linear inverted pendulum in the presence of external disturbances. The kinematic model of a one-stage linear inverted pendulum is derived using Lagrange's theorem, and then a disturbance is introduced to establish a suitable Lyapunov function to design an adaptive update control rate to control the pendulum angle and attenuate the effect of the disturbance. Then the optimal controller is designed to control the trolley position, and the LQR is optimized by a genetic algorithm to form the controller of the whole linear inverted pendulum. Finally, the effectiveness and anti-disturbance capability of the method are verified by Simulink simulation. © 2023 IEEE.

关键词： Genetic algorithms

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Distributed Malicious Maneuvering Target Tracking Algorithm with Finite-Time Fusion Analysis 42

Distributed Malicious Maneuvering Target Tracking Algorithm ...

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42nd Chinese control Conference, CCC 2023

作者： Zhang, Zheng Guo, Dong Zheng, Hongwei Wang, Hong Li, Qingdong Dong, Xiwang Ren, Zhang School of Automation Science and Electrical Engineering Science and Technology on Aircraft Control Laboratory Beihang University Beijing100191 China China Academic of Launch Vehicle Technology Beijing100076 China Beijing Academy of Blockchain and Edge Computing Beijing100871 China Beijing Institute of Control Engineering Beijing100094 China Institute of Artificial Intelligence Beihang University Beijing100191 China

ISBN: (纸本)9789887581543

This paper proposes a distributed tracking framework for high-maneuvering and malicious maneuvering target based on the sensor network. Considering some of sensors in the network can only observe partial system output, the collective observability is guaranteed. Based on the collective observability, the distributed target tracking algorithm is designed by local filter phase and consensus fusion phase. In local filter phase, the local estimate results can be obtained by each sensor node. Based on the target kinematic and sensor observation equations, the Kalman-like estimation algorithm is proposed to obtain the local estimate results. In most of the exist distributed state estimation (DSE) algorithms, the excellent target tracking performance is based on the assumption that the fusion times is infinity in consensus fusion phase. In practical application, however, the consensus fusion phase should be completed during two sampling instants. Besides, based on the finite-time stability theory, the error covariance matrix is processed as the solution of discrete-time algebraic Riccati equation (DARE). Then the stability of the proposed algorithm with finite-time consensus fusion is analyzed. Finally, a numerical example for tracking maneuvering target is given to validate the effectiveness. © 2023 Technical Committee on control Theory, Chinese Association of automation.

关键词： Target tracking

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A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger

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Plasma Science and Technology 2024年第5期26卷 82-90页

作者：霍卫杰贺伟国韩罗峰朱康武王锋 Shanghai Aerospace Electronic Technology Institute Shanghai 201109People’s Republic of China School of Mechatronic Engineering and Automation Shanghai UniversityShanghai 200444People’s Republic of China School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024People’s Republic of China Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province Taiji Laboratory for Gravitational Wave UniverseHangzhou 310024People’s Republic of China Shanghai Aerospace Control Technology Institute Shanghai 201109People’s Republic of China

In this study,a pulsed,high voltage driven hollow-cathode electron beam sources through an optical trigger is designed with characteristics of simple structure,low cost,and easy *** validate the new design,the characteristics of hollow-cathode discharge and electron beam characterization under pulsed high voltage drive are studied experimentally and discussed by discharge characteristics and analyses of waveform details,*** validation experiments indicate that the pulsed high voltage supply significantly improves the frequency and stability of the discharge,which provides a new solution for the realization of a high-frequency,high-energy electron beam *** peak current amplitude in the high-energy electron beam increases from 6.2 A to 79.6 A,which indicates the pulsed power mode significantly improves the electron beam ***,increasing the capacitance significantly affects the highcurrent,lower-energy electron beam more than the high-energy electron beam.

关键词： hollow-cathode nanosecond pulsed electron beam sources optical trigger pulsed high voltage supply beam current distribution

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Finite-Time Observer Based Integral Terminal SMC for Converter-Driven Motor Systems with Mismatched Disturbances

Finite-Time Observer Based Integral Terminal SMC for Convert...

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2023 China automation Congress, CAC 2023

作者： Zhang, Zhongding Guo, Zeyu Wang, Zuo Li, Shihua School of Automation Southeast University Nanjing210096 China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Nanjing210096 China Shenzhen Research Institute Southeast University Shenzhen518063 China

ISBN: (纸本)9798350303759

Converter-driven motor systems play crucial roles in contemporary industrial applications owning to the advantages of smooth starting and stepless speed regulation. For such fourth-order systems with both immeasurable states and mismatched disturbances, a finite-time control solution is proposed to address the speed tracking problem in this paper. Firstly, a finite-time observer is constructed to precisely estimate the immeasurable states and mismatched disturbances. Then, based on integral terminal sliding mode control (ITSMC), a continuous finite-time controller is designed for the systems to achieve both rapid response and superior speed tracking performance. Furthermore, a rigorous global finite-time stability analysis for the closed-loop system is presented. Finally, simulation results validate the effectiveness of the proposed control method. As compared with existing methods, the composite ITSMC algorithm design demonstrates reliable finite-time speed tracking performance and exceptional capability in disturbance rejection. © 2023 IEEE.

关键词： Disturbance rejection

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