IEEJ Transactions on Electrical and Electronic Engineering最新文献_第9页

Interleaved DC/DC Converter with Soft Switching Based on Distributed Partially Coupled Integrated Inductors 基于分布式部分耦合集成电感的软开关交错DC/DC变换器

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70001

Liang Qian, Shuhai Quan, Yinfeng Zhao, Jingxiang Gao

{"title":"Interleaved DC/DC Converter with Soft Switching Based on Distributed Partially Coupled Integrated Inductors","authors":"Liang Qian, Shuhai Quan, Yinfeng Zhao, Jingxiang Gao","doi":"10.1002/tee.70001","DOIUrl":"https://doi.org/10.1002/tee.70001","url":null,"abstract":"The power of DC/DC converters can be significantly improved using interleaved DC/DC converters. The losses in power switching are significantly reduced using a resonant circuit composed of inductors and other components, which is a useful method for improving efficiency. A growing number of studies are focused on coupled inductors for interleaved DC/DC converters, which can increase the gravimetric power density and reduce the number of inductors. Power-inductor and resonant-inductor coupling in single-phase converters has been proposed by some researchers, but few studies have addressed the power-inductor and resonant-inductor coupling in multiphase converters. Therefore, a dual-phase interleaved DC/DC converter with distributed coupled inductors and passive soft-switching is proposed in this paper. The operation process, condition of soft switching, design method, and structure of the distributed coupled inductor are described. A 30 kW, 20 kHz dual interleaved insulated gate bipolar transistor prototype was built, and a power density of 5.15 kW/kg was achieved, attaining 97.18% efficiency at 30 kW. The results of Simulink and experiments reveal that the converter is effective and has the advantages of high power density and high efficiency. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 6","pages":"943-955"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stochastic Resonance Phenomenon Induced by Visual Noise Stimulus Using a Mixed-Reality Device 混合现实设备中视觉噪声刺激引起的随机共振现象

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70007

Yuki Ono, Czaryn S. Ompico, Masato Odagaki

{"title":"Stochastic Resonance Phenomenon Induced by Visual Noise Stimulus Using a Mixed-Reality Device","authors":"Yuki Ono, Czaryn S. Ompico, Masato Odagaki","doi":"10.1002/tee.70007","DOIUrl":"https://doi.org/10.1002/tee.70007","url":null,"abstract":"Stochastic resonance (SR) is a phenomenon in which perceptual sensitivity is enhanced by applying weak noise. Methods for inducing SR using electrical or magnetic noise in the visual cortex are limited in their applicability due to technical and spatial constraints, such as the need for precise electrode positioning and the non-portability of stimulation devices. Additionally, the method of inducing SR by displaying visual noise stimuli on a screen is limited to visual information presented on the monitor and cannot be applied to other contexts. We hypothesized that inducing SR by displaying visual noise stimuli as holograms via a mixed-reality (MR) device could overcome such limitations and enable broader technological applications. The present study investigated the effect of visual noise stimuli on the ability to discriminate figures. Eleven participants discriminated between U-shaped figures displayed on a monitor for 19 ms. The visual noise stimulus consisted of dynamic block noise with 1-mm × 1-mm squares displayed in random positions. When the visual noise stimulus was displayed at an appropriate intensity for each participant, the accuracy of figure discrimination increased. The results indicated that a visual noise stimulus displayed via an MR device induced SR and improved the ability to discriminate figures. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 8","pages":"1250-1256"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surge Impact Characteristics of Low-Voltage Overhead Lines Caused by Natural Lightning 自然雷击对低压架空线路冲击特性的影响

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70010

Xu Yan, Shaodong Chen, Min Ding, Chang Chen, Yijun Zhang, Lyuwen Chen

{"title":"Surge Impact Characteristics of Low-Voltage Overhead Lines Caused by Natural Lightning","authors":"Xu Yan, Shaodong Chen, Min Ding, Chang Chen, Yijun Zhang, Lyuwen Chen","doi":"10.1002/tee.70010","DOIUrl":"https://doi.org/10.1002/tee.70010","url":null,"abstract":"The paper presents an analysis of the residual voltage characteristics of surge protective devices (SPDs) made of zinc oxide on low-voltage overhead distribution lines. The study observed 65 natural lightning events and found that the geometric mean peak value of the SPDs' residual voltage was 767.6 V, with a geometric mean duration of 97.3 μs. The peak current flowing through the SPDs had a geometric mean of 6.4 A, and the SPDs absorbed an average of 0.2 J of energy. Based on the distinct processes of return stroke and the superimposed M component, the surge impacting the SPD can be categorized into three types. The currents flowing through type A and type B SPDs are essentially identical, but they differ in terms of residual voltage waveform. The main surge impact occurs during the return stroke process. Type C is distinct from the other two types: The surge impact expands through the superposition of the M component during the return stroke, resulting in approximately twice the duration of residual voltage and peak current flowing through the SPD compared to the other types. Additionally, in type C, the SPD absorbs about 5.8 times more energy. An analysis of the surge energy corresponding to the first and subsequent return strokes revealed that the surge energy generated by the first return stroke was approximately 2.5 times greater than that of the subsequent return stroke. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 9","pages":"1350-1356"},"PeriodicalIF":1.1,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Parallel Volunteer Computing System Based on Server Assisted Communication 基于服务器辅助通信的并行志愿计算系统

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70015

Keiichi Inohara, Yota Kurokawa, Masaru Fukushi

{"title":"A Parallel Volunteer Computing System Based on Server Assisted Communication","authors":"Keiichi Inohara, Yota Kurokawa, Masaru Fukushi","doi":"10.1002/tee.70015","DOIUrl":"https://doi.org/10.1002/tee.70015","url":null,"abstract":"Volunteer computing (VC) is one of the distributed computing paradigms, which exploits idle computing resources provided by vast amount of users on the Internet. In VC, individual nodes are usually unable to communicate with each other directly; therefore, current VC supports only bag-of-tasks computation, and this prevents widespread use of VC. Toward the realization of parallel VC, this paper proposes a parallel VC system based on the concept of server assisted communication. The proposed method replaces inter-node communication with a pair of two request-driven communication between sender/server and server/receiver. In the proposed parallel VC system, a VC server consists of an Apache web server and a MySQL database server, to ease the implementation of multi-threaded communication and stable and efficient data-management functions. A software tool is also developed to convert a parallel program written with a common MPI communication library into a program with a standard socket library with HTTP protocol. To demonstrate the feasibility of the proposed system, we have implemented the parallel VC system and evaluated the execution time of basic communication functions and parallel programs in NAS parallel benchmarks. The results show that the execution time of basic communication functions is acceptable for the practical use of VC and benchmark programs are successfully executed on the proposed systems, demonstrating the feasibility of parallel computation in VC environments. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 9","pages":"1415-1423"},"PeriodicalIF":1.1,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Target Detection and Tracking Methods in Complex Road Scenes 复杂道路场景中目标检测与跟踪方法研究

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70004

Yibing Zhao, Xin Fu, Yannan Wang, Lie Guo

{"title":"Research on Target Detection and Tracking Methods in Complex Road Scenes","authors":"Yibing Zhao, Xin Fu, Yannan Wang, Lie Guo","doi":"10.1002/tee.70004","DOIUrl":"https://doi.org/10.1002/tee.70004","url":null,"abstract":"This paper investigates the issues of small object omission and poor tracking stability in complex road scenarios for autonomous driving. To address the problem of small object omission, we developed the ECF-YOLO model by integrating a multi-scale fusion feature enhancement module and a dilated convolution context enhancement module into the classical YOLOv5 architecture. Additionally, incorporating the NWD positioning loss, derived from a Gaussian distribution, significantly improves detection accuracy. Furthermore, lightweight models are achieved through DepGraph pruning and knowledge distillation techniques. Moreover, the matching strategy of the ByteTrack algorithm is optimized through weak clue adjustment and low-score box reuse based on the improved detection model. Experimental results demonstrate that the ECF-YOLO model achieves a 4.3% improvement in mAP performance on the self-made road target dataset RSTO. The lightweight model's parameter size and computational cost are reduced by 48.3% and 39.6% respectively. The improved ByteTrack algorithm shows fewer ID switches in real-world driving scenarios. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 8","pages":"1229-1239"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cross-Source Registration of 3D Model and As-Built LiDAR Point Cloud for Electric Power Transmission Lines Model Verification 用于输电线路模型验证的三维模型交叉源配准和已建激光雷达点云

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70006

Hai Yu, Kun Qian, Fei Wang, Tianhao Zhang

{"title":"Cross-Source Registration of 3D Model and As-Built LiDAR Point Cloud for Electric Power Transmission Lines Model Verification","authors":"Hai Yu, Kun Qian, Fei Wang, Tianhao Zhang","doi":"10.1002/tee.70006","DOIUrl":"https://doi.org/10.1002/tee.70006","url":null,"abstract":"Due to the reality gap between designed models and as-built real-world scenarios, improving the accuracy of the 3D models of power transmission lines is essential when transferring them from the design department to the operation department. Point clouds obtained from the drone's remote sensing provide a credible reference for the verification of the 3D model. However, the accuracy of power pylon localization using traditional point cloud segmentation methods is limited due to the complex background of power transmission lines as well as the noise in the point cloud. In this paper, we propose a sequential pylon pose verification method based on cross-source point cloud registration. The method utilizes the registration of pairwise pylon point cloud iteratively for computing each pylon's pose relative to the first pylon. The registration algorithm based on the truncated least squares cost function ensures that our method avoids the pylon localization and orientation errors caused by inaccurate pylon segmentation. Therefore, our method only requires coarse pylon segmentation in point clouds. Experimental results validate the effectiveness of the proposed method in terms of verifying the position and elevation of electric pylons with both identical shapes and shape variations between the source and target. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 7","pages":"1037-1044"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of Weakly Supervised Building Region Extraction Using Graph-Based Segmentation 基于图分割的弱监督建筑区域提取改进

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-10 DOI: 10.1002/tee.70014

Ryosuke Okajima, Takuya Futagami, Noboru Hayasaka

引用次数: 0

Mechanical Fault Diagnosis of High-Voltage Circuit Breakers Based on IPSO-VMD and KFCM-SVM 基于IPSO-VMD和KFCM-SVM的高压断路器机械故障诊断

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-10 DOI: 10.1002/tee.70002

Li Ma, Pei Zhang, Fan Sun, Jingzhong Fang, Ce Zhang, Xinyan Xu

{"title":"Mechanical Fault Diagnosis of High-Voltage Circuit Breakers Based on IPSO-VMD and KFCM-SVM","authors":"Li Ma, Pei Zhang, Fan Sun, Jingzhong Fang, Ce Zhang, Xinyan Xu","doi":"10.1002/tee.70002","DOIUrl":"https://doi.org/10.1002/tee.70002","url":null,"abstract":"Due to that the complex mechanical faults of high-voltage circuit breakers and the difficulty in extracting fault features, a fault diagnosis method combining Improved Particle Swarm Optimization enhanced Variational Mode Decomposition (IPSO-VMD) with Kernel Fuzzy C-Means and Support Vector Machine (KFCM-SVM) is proposed. Initially, the vibration signals are decomposed using IPSO-VMD to obtain a series of Intrinsic Mode Functions (IMFs) that reflect the mechanical state information during the circuit breaker operation. Then, Hilbert transform is performed on each IMF component to construct the corresponding Hilbert marginal spectrum, and the energy entropy is obtained as the feature vector. Finally, the KFCM is used to pre-classify the features, and the SVM is used to establish the training model to realize the mechanical state identification. Experimental results indicate that the energy entropy of the Hilbert marginal spectrum of vibration signals is sensitive to changes in the mechanical state of high-voltage circuit breakers, and KFCM-SVM can accurately identify mechanical faults during the circuit breaker tripping process. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 8","pages":"1195-1202"},"PeriodicalIF":1.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reliability-Based Optimization Design with Interval Parameters for Reducing Yaw Braking Noise 基于区间参数的可靠性优化设计降低偏航制动噪声

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-10 DOI: 10.1002/tee.24277

Baoan Wang, Jianmei Wang, Ke Ning, Jian Hou, Lixia Li

{"title":"Reliability-Based Optimization Design with Interval Parameters for Reducing Yaw Braking Noise","authors":"Baoan Wang, Jianmei Wang, Ke Ning, Jian Hou, Lixia Li","doi":"10.1002/tee.24277","DOIUrl":"https://doi.org/10.1002/tee.24277","url":null,"abstract":"This study introduces a reliability-based optimization design approach, incorporating interval parameters, to address the issue of braking noise during yaw braking in wind turbines. This approach is grounded in the utilization of complex modal analysis and reliability-based optimization design with interval parameters. By employing the finite element method, complex modal analysis is employed to forecast the yaw braking noise. In addition, the adoption of reliability-based optimization design with interval parameters aims to reduce yaw braking noise and enhance system stability. In this framework, uncertain parameters, such as the friction coefficient and groove chamfers, are treated as interval variables. Notably, parameters including groove width, chamfer width, and friction coefficient are deemed significant influential factors. Objective functions are selected based on the tendency of instability and the reliability index. To construct a reliability-based optimization model with interval parameters, orthogonal experiments, response surface methods, and reliability analysis are employed. The NSGA-II Algorithm is subsequently utilized to obtain optimal values for the design parameters from the optimization model. Upon application of the proposed methodology to yaw brake design, yaw braking noise is significantly reduced, accompanied by an increase in system stability. Specifically, the tendency of instability decreases by 46.85%, while the reliability index increases by 66.07%. The findings of this research offer valuable insights for the design of wind turbine yaw brakes. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 7","pages":"1066-1079"},"PeriodicalIF":1.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Carbon Black Additive and Crosslinking Process on the Space Charge Build-Up in LDPE 炭黑添加剂和交联工艺对LDPE中空间电荷积累的影响

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-10 DOI: 10.1002/tee.70011

Anh Tung Tran, Petru Notingher, Serge Agnel, Jerome Castellon

引用次数: 0