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6th International Conference on control and Computer Vision, ICCCV 2024

作者： Cao, Runxi Liu, Jia Du, Jiayi Zhang, Yunxi School of Automation and Electrical Engineering Tianjin University of Technology and Education Tianjin China Tianjin Key Laboratory of Information Sensing and Intelligent Control School of Automation and Electrical Engineering Tianjin University of Technology and Education Tianjin China

ISBN: (纸本)9798400718045

This paper studies the formation control problem of heterogeneous multi-agent systems. We consider a heterogeneous multi-agent system with the first-order linear leaders and second-order nonlinear followers. A distributed formation control protocol is devised to make the system achieve formation control. Furthermore, using Lyapunov stability theory and linear matrix inequality method the stability analysis of the system is conducted, and the sufficient condition is presented for successful formation control in heterogeneous multi-agent systems. Finally, a numerical simulation example is provided to validate the obtained results. © 2024 Copyright held by the owner/author(s). Publication rights licensed to ACM.

关键词： Linear matrix inequalities

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The Design Optimization of the High-Frequency Planar Transformers for Electric Vehicle Chargers 7

The Design Optimization of the High-Frequency Planar Transfo...

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7th IEEE International electrical and Energy Conference, CIEEC 2024

作者： Zhang, Li Shen, Min Wang, Xiaozhou Zhao, Shuang Li, Helong Yang, Zhiqing Ding, Lijian School of Electrical and Automation Engineering Hefei University of Technology HeFei China School of Intelligent Manufacturing and Control Engineer Qilu Institute of Technolgy Jinan China School of Electrical and Automation Engineering Hefei University of Technology China

ISBN: (纸本)9798350359558

Electric vehicle chargers can be divided into high-voltage DC (HVDC) system for charging power battery and low-voltage DC (LVDC) system for supplying low-voltage battery. Since the next generation EVs is getting smarter, they calls for chargers with higher power rating, higher power density and reduced loss which poses challenges for the LVDC systems design. In this paper, LLC resonant DC/DC converter is selected for HVDC system and two-stage converter with a Buck/Boost converter and an SRC converter is used for LVDC system. Circuit parameter design and high frequency (HF) planar transformer design are conducted for the aforementioned two kinds of converters respectively. For HVDC system, a transformer integrating resonant inductance and magnetizing inductance on a core is designed, and for LVDC system, a quarter-turn transformer is designed. The rationality and high efficiency of the two high HF planar transformer designs are verified by simulation and experiment results. © 2024 IEEE.

关键词： Inductance

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Dynamic J-A Hysteresis Model Correction of Iron Core Components and EMTP program Implementation 7

Dynamic J-A Hysteresis Model Correction of Iron Core Compone...

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7th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2024

作者： Chen, Xi Chen, Lian School of Electrical Engineering and Automation Xiamen University of Technology Xiamen China School of Electrical Engineering and Automation Xiamen University of Technology Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control Xiamen China

ISBN: (纸本)9798350388947

Despite Jiles-Atherton (J-A) hysteresis theory has been widely used in the analysis of magnetic properties of iron core components in electric power equipment, the transient modeling of switching device considering hysteresis characteristics remains more challenging given that most electromagnetic transient simulation software lacks a practical dynamic J-A hysteresis inductor model. A J-A hysteresis inductor model considering the iron core's dynamic loss was developed with the Electromagnetic Transients program-Alternative Transients program (EMTPATP) in this study. The classical J-A hysteresis theory was first modified from the perspective of energy conservation equation. Then, the differential equations of the J-A hysteresis model considering dynamic loss were derived according to the field separation and statistical theory of losses, and the final J-A model parameters were determined by particle swarm optimization (PSO) algorithm. The modified dynamic J-A hysteresis model was programmed by Model Language using the Type-94 component in EMTP-ATP, thereby obtaining a dynamic J-A hysteresis inductor model that can be used for electromagnetic transient simulation. The proposed model was verified by sinusoidal excitation test and harmonic excitation simulation. The results show that the excitation simulation outcomes of the dynamic J-A hysteresis inductor model were well fit in the measured data, and it could work stably under harmonic excitation condition, which verifies the feasibility of this model. © 2024 IEEE.

关键词： Electromagnetic transients

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10KV Switchgear Temperature Field Analysis and Product Structure Optimization Research 7

10KV Switchgear Temperature Field Analysis and Product Struc...

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7th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2024

作者： You, Yimin Lin, Jing Dai, Dongyun Sang, Zhongqing School of Electrical Engineering and Automation Xiamen University of Technology Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control Xiamen China School of Electrical Engineering and Automation Xiamen University of Technology Xiamen China

ISBN: (纸本)9798350388947

Human activities have caused a series of environmental problems such as the greenhouse effect, ozone hole, etc. And the global ecological balance has been seriously damaged. Against this background, in order to implement the goal of carbon peaking and carbon neutrality and to realize the green and low-carbon development in China, the country is paying more and more attention to the development and utilization of solar energy, wind energy and other clean energy sources, and therefore, the market demand for photovoltaic and wind power stations in the 10kV switchgear market is gradually increasing. The stable operation of switchgear plays a pivotal role in maintaining the reliable operation of the power system. Whether the switchgear can be operated stably directly affects the reliability of the power system, and a series of aging and damage triggered by heat in the switchgear is the most common and the most important type of failure of the switchgear. Therefore, this paper will be based on the theory of heat generation of electrical appliances, heat transfer theory and airflow field theory and other related theories, synthesize the current status of research at home and abroad and the calculation method of temperature distribution, KYN-type 10kV switchgear as the object of research, its modeling, simulation analysis, and optimization of its temperature rise condition. This study provides important reference significance for the stable operation of 10KV switchgear in the power system. © 2024 IEEE.

关键词： Heat losses

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loT-enabled Rapid Global Maximum Power Point Tracking for Multiple Photovoltaic Inverters 15

loT-enabled Rapid Global Maximum Power Point Tracking for Mu...

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15th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2024

作者： Zhou, Kangjia Gao, Feng Qin, Caiyun Meng, Xiangjian School of Electrical Engineering Shandong University Jinan China School of Control Science and Engineering Shandong University Jinan China College of Electrical Engineering and Automation Shandong University of Science and Technology Qingdao China

ISBN: (纸本)9798350361001

Maximum power point tracking (MPPT) is a crucial technology for enhancing photovoltaic (PV) array power generation efficiency. Under scenarios with partial shading, the output power characteristic curve of a PV array often displays multiple peaks, necessitating the use of global peak-seeking techniques. Particle Swarm Optimization (PSO) and its advanced variants have been widely adopted to address global optimization challenges. However, the current landscape primarily includes PSO based MPPT methods designed for single inverters, which tend to exhibit slow optimization speeds. This paper presents an Internet of Things (IoT)-based multi- inverters approach for global MPPT. In this approach, all inverters within the network are treated as a single particle. This transformation shifts the conventional serial PSO operation into a parallel one, enabling data exchange among inverters to jointly track the maximum power point. Simulation results demonstrate that the proposed methodology significantly accelerates the optimization process, effectively mitigating the limitations of traditional approaches. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Low-Voltage Series Arc Fault Detection Method Based on VMD 7

Low-Voltage Series Arc Fault Detection Method Based on VMD

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7th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2024

作者： Tang, Qiaojia Chen, Li'an Li, Wenxuan School of Electrical Engineering and Automation Xiamen University of Technology Xiamen China School of Electrical Engineering and Automation Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control Xiamen University of Technology Xiamen China

ISBN: (纸本)9798350388947

Aiming at the current situation that the traditional overcurrent protection device is difficult to detect the low-voltage series arc fault, a detection model for low-voltage series fault arc based on Variational Mode Decomposition (VMD) was proposed, utilizing a VMD method optimized by the Whale Optimization Algorithm (WOA). Firstly, WOA was used to optimize the VMD parameters of different loads to decompose the signal. Then, a multi-feature data set was constructed by combining Pearson correlation coefficient and random forest importance assessment. Finally, combined with support vector machine, a low-voltage series arc fault detection model was built. The results show that the accuracy of the proposed arc fault detection method is more than 99 %, and it is suitable for a variety of typical loads. © 2024 IEEE.

关键词： Overcurrent protection

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Ferromagnetic Resonance Fault Identification of 10kV Electromagnetic Voltage Transformer 7

Ferromagnetic Resonance Fault Identification of 10kV Electro...

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7th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2024

作者： Gao, Ji Chen, Li'an Guan, Mengxue School of Electrical Engineering and Automation Xiamen University of Technology Xiamen China School of Electrical Engineering and Automation Xiamen University of Technology Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control Xiamen China

ISBN: (纸本)9798350388947

With the increasing development of power grids, the problem of ferroresonance in neutral-point non-grounded power distribution systems is becoming more and more serious. Due to the close similarities in characteristics between single-phase grounding fault overvoltage and ferroresonance overvoltage, in order to correctly diagnose the type of overvoltage, firstly, the simulation model was built by PSCAD to obtain the simulation waveform of different faults. Then, the resonance overvoltage fault feature extraction method based on VMD was constructed by MATLAB. Finally, by comparing the influence of the number of input layer nodes and the number of hidden layer neurons on the BP neural network, the BP neural network was optimized by MATLAB to achieve the identification of ferroresonance and normal working, grounding fault states, and provide a reliable judgment standard for the action of protection devices. © 2024 IEEE.

关键词： MATLAB

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Analysis of Temperature Fields of a 10kV Electromagnetic PT Under Ferroresonance 7

Analysis of Temperature Fields of a 10kV Electromagnetic PT ...

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7th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2024

作者： Wu, Zhiwei Chen, Li'an Guo, Mengqian School of Electrical Engineering and Automation Xiamen University of Technology Xiamen China School of Electrical Engineering and Automation Xiamen University of Technology Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control Xiamen China

ISBN: (纸本)9798350388947

Electromagnetic potential transformer(PT) may undergo ferroresonance when subjected to external disturbances, which causes overvoltage and affects the stable operation of the power system. In order to provide reference advice for the installation and monitoring of the sensor, the temperature field of 10kV electromagnetic PT was simulated by utilizing the finite element method. In this paper, after establishing a three-dimensional model, joule loss, eddy current loss and hysteresis loss were calculated as heat sources, and then the temperature field distribution was simulated. Subsequently, the differences before and after the ferroresonance were compared to analyse the influence of the ferro resonance and inferred the location where the abnormal temperature rise occurs. The simulation results showed that the highest temperature of the shell is located at the side closest to the heat source, where the epoxy resin is the thinnest and most sensitive to temperature changes. Therefore, the temperature sensor should be mounted at this location, where the abnormal temperature rise can be detected quickly. This study not only will provide suggestions for the installation and monitoring of sensors, but also will lay a foundation for the realization of the 'self-healing' function of the robust smart grid, and improve the reliability and security of the grid operation. © 2024 IEEE.

关键词： Electric power transmission networks

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Urban Traffic control Meets Decision Recommendation System:A Survey and Perspective

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IEEE/CAA Journal of Automatica Sinica 2024年第10期11卷 2043-2058页

作者： Qingyuan Ji Xiaoyue Wen Junchen Jin Yongdong Zhu Yisheng Lv Zhejiang Lab Hangzhou 311121China College of Engineering and Architecture Zhejiang UniversityHangzhou 310013China College of Electrical Engineering Zhejiang UniversityHangzhou 310013China the State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China IEEE

Urban traffic control is a multifaceted and demanding task that necessitates extensive decision-making to ensure the safety and efficiency of urban transportation *** approaches require traffic signal professionals to manually intervene on traffic control devices at the intersection level,utilizing their knowledge and ***,this process is cumbersome,labor-intensive,and cannot be applied on a large network *** studies have begun to explore the applicability of recommendation system for urban traffic control,which offer increased control efficiency and *** a decision recommendation system is complex,with various interdependent components,but a systematic literature review has not yet been *** this work,we present an up-to-date survey that elucidates all the detailed components of a recommendation system for urban traffic control,demonstrates the utility and efficacy of such a system in the real world using data and knowledgedriven approaches,and discusses the current challenges and potential future directions of this field.

关键词： Recommendation system traffic control traffic perception traffic prediction

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Image-Based Fast Finite-Time Target Tracking control of Onboard Inertially Stabilized Camera Platform

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IEEE Transactions on Industrial Electronics 2024年第12期71卷 16409-16418页

作者： Sun, Xunhong Zhu, Wenwu Du, Haibo Chen, Weile Chen, Chih-Chiang Hefei University of Technology School of Electrical Engineering and Automation Hefei230009 China Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Nanjing210096 China Southeast University School of Automation Nanjing210096 China National Cheng Kung University Department of Systems and Naval Mechatronic Engineering Tainan70101 Taiwan

In this article, we investigate the problem of fast finite-time target tracking control of the inertially stabilized platform (ISP) with a camera that mounted on a mobile robot. At first, the kinematics of the onboard ISP target tracking system is established by the geographic coordinate and pinhole camera model, which includes the state-dependent uncertainties and external disturbances. Then, based on the image information captured by camera, a continuous image-based fast finite-time control algorithm is designed for target tracking. Rigorous analysis proves that the target can be tracked at the center of camera's view in finite time in the absence of disturbances. In the presence of disturbances, the tracking error can converge to a region around the origin in finite time. Simulation and experimental comparisons are presented to confirm the efficiency of the proposed method. © 1982-2012 IEEE.

关键词： Mobile robots

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