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4th International Symposium on Insulation and Discharge Computation for Power Equipment, IDCOMPU 2023

作者： He, Xianqiang Zhao, Weixing Cao, Fei Ma, QinFeng Liu, Mingshun Qin, Hai Pu, Qingxin Sun, Yudong Guizhou Power Grid Co. Ltd. Electric Dispatching and Control Center Guiyang550000 China Beijing Sifang Protection and Automation Engineering Technology Co. Ltd Beijing100044 China School of Electrical Engineering and Automation Wuhan University Wuhan430000 China

ISBN: (纸本)9789819973927

With the rapid development of distributed power generation technology and microgrid technology, research on the operation and control of new energy storage isolated network systems has received widespread attention. Compared with grid-connected operation, isolated operation can improve the acceptance and application of new energy, increase the flexibility of power grid operation, and solve the problem of difficulty in long-distance transmission in remote areas, which is an important application form and development trend of future new energy. This article reviews the latest progress in the operation and control of new energy storage isolated network systems. The key technologies for the operation and control are analyzed, general methods for the operation and control strategy of are given, and future technology development trends are predicted and discussed. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Relay protection

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Video Stabilization using RAFT-based Optical Flow

Video Stabilization using RAFT-based Optical Flow

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2023 International Conference on Robotics and automation in Industry, ICRAI 2023

作者： Ashar, Rana Sadiq, Burhan Mohiuddin, Hira Ashraf, Saniya Imran, Muhammad Ullah, Anayat Control Automotive and Robotics Lab National Centre of Robotics and Automation Rawalpindi Pakistan Balochistan University of IT Engineering and Management Sciences Department of Electronic Engineering Quetta Pakistan

ISBN: (纸本)9781665464727

Video Stabilization is the basic need for modern-day video capture. Many methods have been proposed throughout the years including 2D and 3D-based models as well as models that use optimization and deep neural networks. This work describes the implementation of cutting-edge Recurrent All-Pairs Field Transforms (RAFT) for optical flow estimation in video stabilization. we use a pipeline that accommodates the large motion. It then passes the results to the optical flow for better accuracy. After that, it satisfies the inaccuracies of the optical flow and makes it robust to occlusion, Parallax, and moving objects. Our approach yields better results (visually and quantitatively) compared to other optimization and deep learning-based visual stabilization techniques. © 2023 IEEE.

关键词： Geometrical optics

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Time-scheduled observer design for switched linear systems with unknown inputs

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Science China(Information Sciences) 2022年第7期65卷 265-266页

作者： Shuang SHI Zhongyang FEI Xudong ZHAO College of Automation Engineering Nanjing University of Aeronautics and Astronautics Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education Dalian University of Technology

Dear editor, Since uncertain disturbance, actuator faults and unmodeled dynamics can all be viewed as unknown inputs in various practical systems, the issue of unknown input observer design is of great significance. Meanwhile, switched systems have attracted extensive attention, which are prevailingly motivated by superior capabilities in modeling numerous practical systems possessing switching characteristics. Recently, the state observation for switched systems with unknown inputs has attracted considerable attention [1–5].

关键词： switched linear systems unknown inputs admissible edge-dependent average dwell-time multiple discontinuous Lyapunov-like functions observer design

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A Day-Ahead Market Clearing Model Under System Inertia Constraints 16

A Day-Ahead Market Clearing Model Under System Inertia Const...

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16th IEEE PES Asia-Pacific Power and Energy engineering Conference, APPEEC 2024

作者： Ma, Yuting Jin, Jiangliang Hao, Liangliang Huang, Qisheng Shen, Liye College of Information Scienc and Technology Donghua University Shanghai China Shandong University Department of Control Science and Engineering Shandong China School of Mechanical Engineering and Automation Harbin Institute of Technology Shanghai China

ISBN: (纸本)9798350386127

We study the market clearing model for electric energy, inertia, and reserve in the day-ahead market, with a particular focus on the virtual inertia provided by wind units. In this paper, we consider synchronous inertia and virtual inertia as sources of system inertia. We incorporate system inertia constraints into the unit commitment (UC) and the economic dispatch (ED) models, and assign economic value to virtual inertia, so as to incentivize wind power to provide virtual inertia. Numerical results demonstrate that the proposed model enhances the participation of wind power units, increases the wind utilization rate and reduces the total costs. © 2024 IEEE.

关键词： Wind power

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Electrocardiogram Signal Secure Transmission via a Wireless Communication Protocol of Chaotic Systems Based on Adaptive Sliding Mode control and Disturbance Observer

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IEEE Access 2023年 11卷 145373-145385页

作者： Chien Le, Minh Giap, Van Nam Nguyen, Quang Dich Huang, Shyh-Chour Hanoi University of Science and Technology School of Electrical and Electronic Engineering Hanoi100000 Viet Nam Institute for Control Engineering and Automation Hanoi University of Science and Technology Hanoi100000 Viet Nam National Kaohsiung University of Science and Technology Department of Mechanical Engineering Kaohsiung807618 Taiwan

This paper presents a new application of the encryption and decryption techniques for securing the electrocardiogram (ECG) signal. The secure communication system (SCS) is embedded two Chen chaotic systems with different initial conditions, which were named master and slave, respectively. An ECG signal is encrypted by using master chaotic system. Which can be sent to the far destination to serving the heath care monitoring process. To obtain the original data, the state of the slave system is used to decrypt the signal. To obtain the goal, the master and slave need to be synchronized. Therefore, to softening the calculation of synchronization control design, the Takagi-Sugeno fuzzy (TSF) was used to remodel the master and slave into the fuzzy format, which are consists of the sublinear systems and fuzzy outer membership functions. Second, the disturbance observer (DOB) was proposed on slave system, which is used to reject the parameters variations and disturbances during the transmission. Third, the sliding mode control (SMC) was designed to synchronize the master and slave systems. Fourth, the stability of SCS is proved based on the Lyapunov condition. Finally, the simulation by using MATLAB software on computer and experiment by using the WIFI microchip ESP8266 were provided to show the power of the proposed methods. © 2013 IEEE.

关键词： Time domain analysis

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Design of a Set Prediction Based Oriented Detector for Specialty Paper Making Fiber Identification 5

Design of a Set Prediction Based Oriented Detector for Speci...

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5th International Conference on Artificial Intelligence and Electromechanical automation, AIEA 2024

作者： Hua, Citao Liu, Yiqi South China University of Technology School of Automation Science and Engineering Guangdong Guangzhou China South China University of Technology National Engineering Research Center of Papermaking and Pollution Control Guangdong Guangzhou China

ISBN: (纸本)9798350366174

Proper orientation detection of paper making fiber is an important task for quality monitoring and control in specialty paper production. However, the slender nature of the fiber objects and their dense and interlaced distribution in the paper production make it impossible for a general-purpose oriented detector to accurately detect all fibers accurately. In this paper, we propose a two-stage rotated object detection method, termed Set Oriented Detector, which is able to cope with oriented detection scenarios where the detection target is dense, slender and interlaced distribution. Firstly, we propose the Set Oriented Region Proposal Network, which can make set predictions by generating set proposal for a single anchor and uses Set Oriented Non-Maximum Suppression to obtain dense oriented proposals. Secondly, we employ a bounding box to enhance the edge offset method in the second stage to further improve the detection accuracy for slender targets. Finally, we conduct experiments and evaluations on a specialty paper fiber dataset, demonstrating that our method can effectively improve the detection accuracy of dense, slender and interlaced distributed fiber targets. © 2024 IEEE.

关键词： Computer vision Dense detection Oriented detector Set prediction Slender detection

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High-speed train positioning based on a combination of Beidou navigation, inertial navigation and an electronic map

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Science China(Information Sciences) 2023年第7期66卷 237-252页

作者： Hui YANG Shuai-Qiang DONG Chun-Hua XIE School of Electrical and Automation Engineering East China Jiaotong University Key Laboratory of Advanced Control & Optimization of Jiangxi Province East China Jiaotong University State Key Laboratory of Performance Monitoring Protecting of Rail Transit Infrastructure East China Jiaotong University

To date, the studies on the combination positioning of high-speed trains have made great progress, but the positioning accuracy of these methods is relatively low. Map-matching positioning can improve positioning accuracy, but information transmission is time-consuming. Few studies incorporate it into combination positioning. To solve the problem, this paper proposes a high-speed train positioning method based on combining a Beidou navigation system, an inertial navigation system, and an electronic map. First, the combination positioning problem is transformed into a multi-objective optimization problem, which weights the direction similarity and distance error to form a fitness function and converts the railway line and the maximum error range of each positioning system into constraints. Second, an improved differential evolution algorithm is proposed to solve this problem. By referencing the gray wolf algorithm,the differential evolution algorithm updates individuals by varying toward the direction of multiple optimal values. Then, a new combination positioning algorithm for high-speed trains is proposed. In the simulation,the increase in positioning speed and accuracy is analyzed and validated. Compared to the current algorithms, the proposed algorithm performs better. The proposed method has practical value for improving the reliability and safety of train operations.

关键词： electronic map multi-objective optimization differential evolution algorithm Beidou navigation system high-speed train positioning

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Asynchronous Learning-Based Output Feedback Sliding Mode control for Semi-Markov Jump Systems: A Descriptor Approach

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IEEE/CAA Journal of Automatica Sinica 2024年第6期11卷 1358-1369页

作者： Zheng Wu Yiyun Zhao Fanbiao Li Tao Yang Yang Shi Weihua Gui School of Automation Central South UniversityChangsha 410083China Power Electronics Machines and Control GroupThe University of NottinghamNottingham NG72RDUK Department of Mechanical Engineering University of VictoriaVictoria BC V8W 3P6Canada IEEE

This paper presents an asynchronous output-feed-back control strategy of semi-Markovian systems via sliding mode-based learning *** with most literature results that require exact prior knowledge of system state and mode information,an asynchronous output-feedback sliding sur-face is adopted in the case of incompletely available state and non-synchronization *** holonomic dynamics of the sliding mode are characterized by a descriptor system in which the switching surface is regarded as the fast subsystem and the system dynamics are viewed as the slow *** upon the co-occurrence of two subsystems,the sufficient stochastic admissibility criterion of the holonomic dynamics is derived by utilizing the characteristics of cumulative distribution ***,a recursive learning controller is formulated to guarantee the reachability of the sliding manifold and realize the chattering reduction of the asynchronous switching and sliding ***,the proposed theoretical method is substantia-ted through two numerical simulations with the practical contin-uous stirred tank reactor and F-404 aircraft engine model,respectively.

关键词： Asynchronous switching learning-based control output feedback semi-Markovian jump systems sliding mode con-trol(SMC).

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Development of End Multi-Fingered Manipulator with Flexible Device

Development of End Multi-Fingered Manipulator with Flexible ...

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2023 IEEE International Conference on Robotics and Biomimetics, ROBIO 2023

作者： Chen, Zenghao Shi, Ran Wu, Pengfei Tao, Sheng Yan, Dan Cui, Ze Shanghai Aerospace Control Technology Institute Shanghai Engineering Research Center of Inertial Shanghai China Shanghai University School of Mechatronic Engineering and Automation Shanghai China

ISBN: (纸本)9798350325706

In this study, a flexible grasping terminal manipulator that uses the pneumatic vacuum principle and granular material as its base is given. Pneumatic device and granular material are wrapped in elastic film by the end-effector. Whatever complex shape structure the target object has, the flexible end can change shape and wrap around it to entirely grasp the object, it is easy to operate and effective. Create a model of a multi-finger paw with flexible ends that may be used on other things with form structures in addition to flat objects. The flexible end effector has improved application prospects and practical relevance thanks to the optimized design, which additionally offers high gripping speed, success rate, and stability. © 2023 IEEE.

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Performance Evaluation of Axial-Flux Machine with Water-Cooling and Fractional-Slot Distributed-Winding 11

Performance Evaluation of Axial-Flux Machine with Water-Cool...

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11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia

作者： Chen, Qixu Li, Guoli Qian, Zhe Sun, Zehui Wang, Qunjing Anhui University School of Electrical Engineering and Automation Hefei China Anhui University National Engineering Laboratory of Energy-Saving Motor and Control Technology Hefei China

ISBN: (纸本)9788957083505

The reduction of space harmonic in winding magnetic motive force (MMF) is important for axial-flux permanent magnet synchronous machine (AFPMSM). For the 12-slot/10-pole winding and 24-slot/10-pole winding, comparative analysis of winding MMF is finished with winding function method(WFM). Analysis results show that fractional-slot distributed-winding (FSDW) have much lower total harmonic distortion (THD) than that of fractional-slot concentrated-winding (FSCW). It is beneficial to reduce eddy-current loss in PMs. An AFPMSM prototype with a 24-slot/10-pole combination is manufactured and tested at no-load condition. No-load back-EMF wave is measured at 1000rpm and 3000rpm. Theory and experiment prove that AFPMSM with FSDW layout has a better balance between THD of winding MMF and THD of no-load back-EMF. © 2023 The Korean Institute of Power Electronics.

关键词： Permanent magnets

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