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6th IEEE International Electrical and Energy Conference, CIEEC 2023

作者： Chen, Wen Kou, Baoquan Wang, Mengyao Wei, Jian Harbin Institute of Technology Department of Electrical and Automation Harbin China School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9798350346671

Eddy current brake is an electromagnetic device which can outputs the braking force or torque base on Faraday law of electromagnetic induction and the equation of Lorentz force. Relative to the traditional mechanical friction brake, the eddy current brake has the advantages of no mechanical contact, low noise, convenient maintenance, long working life, easy to control, high reliability and nonpolluting. In this paper, linear eddy current brakes with different secondary structures, ie, cage, smooth solid, slitted solid and compound solid, were compared in cases where the geometrical size is kept constant. In order to compare the performance characteristics brought about by the change in the secondary's structure for different speeds, all the eddy current brakes were analyzed with the finite-element method (FEM). © 2023 IEEE.

关键词： Permanent magnets

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Bioinspired Polarized Skylight Orientation Determination Artificial Neural Network

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Journal of Bionic engineering 2023年第3期20卷 1141-1152页

作者： Huaju Liang Hongyang Bai Ke Hu Xinbo Lv School of Energy and Power Engineering Nanjing University of Science and TechnologyNanjing210094China Neuromorphic Computing Laboratory China Nanhu Academy of Electronics and Information TechnologyJiaxing314001China Guidance Radar General Department Xi’an Electronic Engineering Research InstituteXi’an710100China School of Automation Nanjing University of Science and TechnologyNanjing210094China

This paper proposes an artificial neural network to determine orientation using polarized skylight. This neural network has specific dilated convolution, which can extract light intensity information of different polarization directions. Then, the degree of polarization (DOP) and angle of polarization (AOP) are directly extracted in the network. In addition, the exponential function encoding of orientation is designed as the network output, which can better reflect the insect’s encoding of polarization information and improve the accuracy of orientation determination. Finally, training and testing were conducted on a public polarized skylight navigation dataset, and the experimental results proved the stability and effectiveness of the network.

关键词： Polarized light navigation Orientation determination Artificial neural network

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Fixed-time supper twisting disturbance observer and sliding mode control for a secure communication of fractional-order chaotic systems

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JVC/Journal of Vibration and Control 2024年第11-12期30卷 2568-2581页

作者： Nguyen, Quang Dich Vu, Dinh Dat Huang, Shyh-Chour Giap, Van Nam Institute for Control Engineering and Automation Hanoi University of Science and Technology Hai Ba Trung Hanoi100000 Viet Nam School of Electrical and Electronic Engineering Hanoi University of Science and Technology Hai Ba Trung Hanoi100000 Viet Nam Department of Mechanical Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan

This paper proposed a new disturbance observer (DO) based on the fixed-time supper-twisting algorithm (FTSTA) for rejecting perturbations of secure communication of the fractional-order chaotic systems (FOCSs). First, the FOCSs are remodeled into the Takagi–Sugeno fuzzy (TSF) system with the expectation of softening the calculations of the design of the controller and observer. Second, the synchronization control was designed based on the FTSTA sliding mode control (SMC). Third, a new DO for the secure communication system (SCS) of FOCSs was proposed to estimate the disturbance on public channels and uncertainty variations. Fourth, the stability of the proposed synchronization control was obtained by using the Lyapunov condition. Finally, to verify the correction of the proposed method, the MATLAB simulation with the use of FONCOM toolbox was used to meet the desired expectations of theoretically proposed method. There are, small reaching times, small steady-states, and most tested disturbances and parameters’ variations were compensated by the proposed DO. © The Author(s) 2023.

关键词： Secure communication

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AggFollower: Aggressiveness Informed Car-Following Modeling

IEEE Transactions on Intelligent Vehicles

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IEEE Transactions on Intelligent Vehicles 2024年 1-15页

作者： Chen, Xianda Yuan, Xinyi Zhu, Meixin Zheng, Xinhu Shen, Shaojie Wang, Xuesong Wang, Yinhai Wang, Fei-Yue Guangzhou China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong SAR China School of Transportation Engineering Tongji University Shanghai China Department of Civil and Environmental Engineering University of Washington Seattle WA USA State Key Laboratory for Management and Control of Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China

Car-following is the most common driving scenario where a following vehicle follows a lead vehicle in the same lane. One crucial factor of car-following behavior is driving style which affects speed and gap selection, acceleration pattern, and fuel consumption. However, existing car-following research used limited categories of driving style through pre-defined patterns and failed to encode driving style into data-driven car-following models. To address these limitations, we propose the Aggressiveness Informed Car-Following (AICF) modeling approach, which embeds driving style as a dynamic input feature in data-driven car-following models. In detail, We design driving aggressiveness tokens using four physical quantities (jerk, acceleration, relative speed, and relative spacing) to capture the heterogeneity of driving aggressiveness. These tokens were then embedded into a physics-informed Long Short-Term Memory (LSTM) based car-following model for trajectory prediction. To evaluate the effectiveness of our approach, we conducted extensive experiments based on 12,540 car-following events extracted from the HighD dataset and 24,093 events from the Lyft dataset. Compared to models devoid of considerations for driving aggressiveness levels, AICF exhibits superior efficacy in mitigating the Mean Square Error (MSE) of spacing and collision rate. To the best of our knowledge, this is the first work to directly incorporate real-time driving aggressiveness tokens as input features into data-driven car-following models, enabling a more comprehensive understanding of aggressiveness in car-following behavior. IEEE

关键词： Long short-term memory

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Optimal PM Numbers and Stator/Rotor Pole Number Combinations in Asymmetric Consequent-Pole Hybrid Excited Flux-Reversal Machines 26

Optimal PM Numbers and Stator/Rotor Pole Number Combinations...

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26th International Conference on Electrical Machines and systems, ICEMS 2023

作者： Wei, Fangrui Zhu, Zi-Qiang Hu, Jianhui Harbin Institute of Technology School of Electrical Engineering and Automation Harbin China University of Sheffield Department of Electronic and Electrical Engineering Sheffield United Kingdom

ISBN: (纸本)9798350317589

This paper investigates the influence of permanent magnet (PM) numbers and stator/rotor pole number combinations (S/R combinations) on two asymmetric consequent-pole hybrid excited flux-reversal machines (ACPHEFRMs). For ACP-HEFRMs, radially-magnetized PMs and small iron teeth are arranged alternately on each stator pole. Moreover, PMs are radially-magnetized in the same direction on the same stator pole, while in the opposite direction on the adjacent poles. AC armature windings and DC excitation windings are wound on each stator tooth separately on the stator tooth. The phase shift between PM and DC produced magnetic field phase flux-linkages (PM-DC phase shift) in ACP-HEFRMs with different PM numbers is highlighted and the phase shift elimination is generalized to obtain the optimal S/R combination for the first time. With the objective of maximizing average torque, genetic algorithm has been adopted in global optimizations to determine the optimal S/R combination and PM numbers for both ACP-HEFRMs. Comparisons are made on both machines regarding torque, torque ripple, and flux-regulation capability. © 2023 IEEE.

关键词： Stators

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Performance of Microgrid systems on Multiple Dynamic Loads Penetration 10

Performance of Microgrid Systems on Multiple Dynamic Loads P...

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10th IEEE International Conference on Power systems, ICPS 2023

作者： Rumky, Tajrin Jahan Ahmed, Tofael Ahmed, Moudud Ahmad, Shameem Rahman, M.M. Advanced Power System Laboratory Department of Electrical & Electronic Engineering Chittagong4349 Bangladesh Southern University Bangladesh Department of Electrical and Electronic Engineering Chattogram Bangladesh Bangabandhu Sheikh Mujibur Rahman Science and Technology University Department of Electrical and Electronic Engineering Gopalganj8100 Bangladesh Faculty of Engineering Department of Electrical & Electronic Engineering Dhaka1229 Bangladesh East Delta University Department of Electrical and Electronic Engineering Chattogram Bangladesh

ISBN: (纸本)9798350318739

Microgrids (MGs) have emerged as a promising solution to enhance the reliability and sustainability of modern power distribution systems. In recent years, there has been a growing interest in interconnecting multiple microgrids to create more resilient and efficient energy networks. However, the performance of interconnected microgrids under various dynamic load scenarios remains a critical research area. In this paper, problems like low-frequency oscillations (LFOs) and the dynamic performance of multiple induction motors (IMs) in microgrids instead of a single motor with the same rating under a wide range of operating conditions are looked at. A single microgrid and an interconnected microgrid are two alternative model configurations designed in Matlab/Simulink that are considered in this study's comparison of non-linear dynamic simulations. The findings show that, compared to a local microgrid system, the performance of an interconnected microgrid system is more susceptible to being impacted by several parallel IM loads. Furthermore, it has been discovered that large IMs have lower LFO damping capabilities than parallel multiple small IMs. © 2023 IEEE.

关键词： Induction motors

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A Review:From Aquatic Lives Locomotion to Bio-inspired Robot Mechanical Designations

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Journal of Bionic engineering 2023年第6期20卷 2487-2511页

作者： Pengxiao Bao Liwei Shi Lijie Duan Shuxiang Guo Zhengyu Li School of Medical Technology Beijing Institute of TechnologyBeijing100081China School of Life Science Beijing Institute of TechnologyBeijing100081China The Key Laboratory of Convergence Medical Engineering System and Healthcare Technology The Ministry of Industry and Information TechnologyBeijing Institute of TechnologyNo.5ZhongguancunSouth StreetBeijing100081China The Department of Electronic and Electrical Engineering Southern University of Science and TechnologyShenzhen518055GuangdongChina

With the development of camera technology,high-speed cameras have greatly contributed to capturing the movement and posture of animals,which has dramatically promoted experimental biology *** the same time,with the concept of bionics gradually gaining popularity among researchers,the design of robots is absorbing more and more biological features,where the interest in the bio-inspired robot is hewed *** with the traditional robot,the bio-inspired robot imitates the motion pattern to achieve similar propulsion features,which may be more effective and *** this paper,the motion patterns of aquatic animals are divided into four categories according to their propulsion mechanisms:drag-based,lift-based,jet-based,and *** bio-inspired robots imitating aquatic prototypes are introduced and ***,the prospect of aquatic bio-inspired robots is discussed.

关键词： Bionic Bio-inspired robot Aquatic animal Propelling mechanism Structure design

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Analysis of the Mechanism and Countermeasures of Harmonics Influence on Inverter in WPT systems

Analysis of the Mechanism and Countermeasures of Harmonics I...

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International Conference of Electrical, electronic and Networked Energy systems, EENES 2024

作者： Cui, Chao Zhu, Chunbo Liu, Guofeng Zhang, Qianfan Chen, Qingquan School of Electrical Engineering and Automation Harbin Institute of Technology Harbin150006 China Zhengzhou Research Institute of Harbin Institute of Technology Zhengzhou450003 China Department of Electrical & Electronic Engineering The University of Hong Kong 710049 China

ISBN: (纸本)9789819620791

Wireless power transmission (WPT) systems are usually analyzed and designed with only the resonant frequency space in mind, whereas in practice the use of square-wave inverter sources introduces harmonics into the system. These harmonics can distort the output current waveform of the inverter source when the filtering performance of the WPT system is poor, a problem that is more likely to occur and is more severe at light loads. The harmonics problem leads to efficiency degradation and control difficulties in the system. This paper analyzes the mechanism of harmonic generation in WPT system, calculates the degree of harmonic influence on the inverter in various aspects, and proposes the methods to eliminate the harmonics in WPT system from various angles. This paper facilitates WPT system designers to avoid the harm of harmonics. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Inductive power transmission

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Inverse Origami Design Model for Soft Robotic Development

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Soft Robotics 2024年第1期11卷 131-139页

作者： Hu, Qiqiang Li, Junyang Tao, Jian Dong, Erbao Sun, Dong Department of Biomedical Engineering City University of Hong Kong Hong Kong Department of Precision Machinery and Precision Instrumentation University of Science and Technology of China Hefei China Department of Electronic Engineering Ocean University of China Qingdao China CAS Key Laboratory of Mechanical Behavior and Design of Materials School of Engineering Science University of Science and Technology of China Hefei China Centre for Robotics and Automation Shenzhen Research Institute of City University of Hong Kong Shenzhen China

Origami provides an opportunity to construct a wide range of 3D functional structures by folding a flat sheet. It can be used to develop various soft functional robots by combining soft smart actuators. However, a simple and an effective model that can address the challenging problem of designing origami patterns to connect origami design with robotics is lacking, thereby greatly increasing the threshold of soft origami robots and hindering its development. This study proposes an easy-to-use inverse origami design model to generate the flat crease pattern from the desired folded shape automatically while simulating origami morphing by simply providing the shape parameters or 2D shape graphics. This method overcomes the difficulty of origami design and enables a close connection between origami and robotics. Through this method, various soft origami robots can be developed with low design complexity and time cost to achieve different functions, thereby promoting the development of soft origami robots. © 2024 Mary Ann Liebert Inc.. All rights reserved.

关键词： Robots

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Autonomous Power Management and Control Among Interconnected Standalone Hybrid Microgrids 10

Autonomous Power Management and Control Among Interconnected...

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10th IEEE International Conference on Power systems, ICPS 2023

作者： Tasnim, Moshammed Nishat Ahmed, Tofael Ahmad, Shameem Mekhilef, Saad Advanced Power System Laboratory Department of Electrical & Electronic Engineering Chittagong4349 Bangladesh Faculty of Engineering Department of Electrical & Electronic Engineering Dhaka1229 Bangladesh Swinburne University of Technology Hawthorn MelbourneVIC3122 Australia

ISBN: (纸本)9798350318739

Multiple microgrids (MGs) being interconnected permits a high penetration of renewable energy sources while also improving the reliability and generation efficiency of the interconnected MG system. However, an effective power management strategy (PMS) and reliable control structure are required to ensure suitable operation and proper power sharing. Therefore, an effective clustering method of three hybrid MGs with a decentralized control structure is proposed in this paper to ensure sufficient power supply in three MGs depending on their available power generation in islanded mode. The interconnection takes place among the DC buses of each hybrid MG using a bidirectional DC/DC converter, which eliminates the complexity of reactive power management and synchronization and reduces power losses and costs. Moreover, the proposed decentralized PMS is based on the system voltage deviation to achieve proper power sharing without any communication link. Different scenarios for power sharing among interconnected hybrid MGs, including load variations, source failure, and energy storage systems charging or discharging, are analyzed. The performance of the proposed interconnection method and PMS is analyzed and validated using MATLAB/Simulink and a real-time-based OPAL-RT digital simulator. The simulation outcomes show that the proposed method and PMS ensure reliable operation and provide proper power sharing among the three hybrid MGs. © 2023 IEEE.

关键词： DC-DC converters

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