Pub Date : 2024-09-10DOI: 10.1109/tdei.2024.3457594
Zhihang Zhao, Zhen Wang, Zemin Duan, Yangyang Fu
{"title":"Dynamical similarity of streamer propagation in geometrically similar combined air gaps","authors":"Zhihang Zhao, Zhen Wang, Zemin Duan, Yangyang Fu","doi":"10.1109/tdei.2024.3457594","DOIUrl":"https://doi.org/10.1109/tdei.2024.3457594","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"179 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-09DOI: 10.1109/tdei.2024.3456104
Tatsuki Okamoto, Hiroaki Uehara
{"title":"Nanosecond Current Waveforms with Small Discharge Gaps in Needle-Plane Electrode over Three Kinds of Polymer Film","authors":"Tatsuki Okamoto, Hiroaki Uehara","doi":"10.1109/tdei.2024.3456104","DOIUrl":"https://doi.org/10.1109/tdei.2024.3456104","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"71 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Small-Sample GIS Partial Discharge Type Identification Method Based on Fusion of One-Dimensional AT-DRSN and IDRN Models","authors":"Baiqiang Yin, Yahong Zeng, Ruoyu Wang, Lei Zuo, Bing Li, Zhen Cheng","doi":"10.1109/tdei.2024.3455314","DOIUrl":"https://doi.org/10.1109/tdei.2024.3455314","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"282 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-06DOI: 10.1109/TDEI.2024.3455321
Pengfei Wang;Hongjuan Zhang;Pengwei Guo;Juan Chen;Yan Gao;Yu Wang;Baoquan Jin
The acoustic emission property and transient process of cylindrical cavity discharge is comprehensively modeled and validated for power cable in this article. An electrostatic field model is established to analyze the discharge duration and power density varying with discharge magnitude and cylindrical cavity height. The relationship between the acoustic source and PD activity is constructed through discharge power density and duration. Furthermore, a transient model for acoustic wave propagation in a multilayer power cable is established. Numerical analysis with finite element analysis is conducted to analyze the effects of different discharge magnitudes under the same cavity height and different cavity heights under the same discharge magnitude on the acoustic waves at the surface of the power cable. The simulation reveals that higher discharge magnitude results in greater intensity of the acoustic wave and longer cavities result in lower acoustic frequencies. Ultimately, a series of validation experiments are implemented to acquire the statistical acoustic characteristics. The intensity of acoustic wave is positively correlated with the discharge magnitude in R-square of 0.9895, while the frequency is negatively correlated with cavity height in R-square of 0. 9589.
{"title":"Acoustic Emission Property of Cylindrical Cavity Discharge in Power Cable","authors":"Pengfei Wang;Hongjuan Zhang;Pengwei Guo;Juan Chen;Yan Gao;Yu Wang;Baoquan Jin","doi":"10.1109/TDEI.2024.3455321","DOIUrl":"10.1109/TDEI.2024.3455321","url":null,"abstract":"The acoustic emission property and transient process of cylindrical cavity discharge is comprehensively modeled and validated for power cable in this article. An electrostatic field model is established to analyze the discharge duration and power density varying with discharge magnitude and cylindrical cavity height. The relationship between the acoustic source and PD activity is constructed through discharge power density and duration. Furthermore, a transient model for acoustic wave propagation in a multilayer power cable is established. Numerical analysis with finite element analysis is conducted to analyze the effects of different discharge magnitudes under the same cavity height and different cavity heights under the same discharge magnitude on the acoustic waves at the surface of the power cable. The simulation reveals that higher discharge magnitude results in greater intensity of the acoustic wave and longer cavities result in lower acoustic frequencies. Ultimately, a series of validation experiments are implemented to acquire the statistical acoustic characteristics. The intensity of acoustic wave is positively correlated with the discharge magnitude in R-square of 0.9895, while the frequency is negatively correlated with cavity height in R-square of 0. 9589.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 5","pages":"2701-2710"},"PeriodicalIF":2.9,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-05DOI: 10.1109/tdei.2024.3454565
Tianwei Wang, She Chen, Entong Xu, Yaoxun Zhao, Feng Wang, Qiaopo Xiong, Gen Long
{"title":"Influence of 16 kHz-30 kHz Sinusoidal Voltage on Surface Discharge Characteristics at Different Pressures","authors":"Tianwei Wang, She Chen, Entong Xu, Yaoxun Zhao, Feng Wang, Qiaopo Xiong, Gen Long","doi":"10.1109/tdei.2024.3454565","DOIUrl":"https://doi.org/10.1109/tdei.2024.3454565","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"59 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There is frequent sandstorm weather in the northwest of China. Roof insulator is exposed to strong wind and sand environment for a long time. A large amount of sand will be deposited on the surface, resulting in a reduction of insulation strength along the insulator surface and a gap between the sheds. Also, affected by the abrasive action of sand, the roof insulator surface hydrophobicity decreases, which is easy to trigger the insulator flashover, threatening the safety of train operation. For this purpose, this article reviews the sand charging mechanism, sand accumulation characteristics, surface discharge characteristics, air-gap breakdown characteristics, flashover characteristics of the insulator, and the effects of surface abrasion on the insulation performance in wind and sand environment. Based on the train operating conditions, future research directions are proposed to be carried out. First, it is necessary to study the sand accumulation characteristics of roof insulators under multifactor coupling and establish a simulation model that reflects the distribution and content of sand. Secondly, it is necessary to carry out research on the flashover characteristics of real roof insulators and higher speed wind and sand environments, and to build the quantitative relationship between wind speed, sand particle size, sand concentration and the gap breakdown voltage. Finally, a method to evaluate the abrasion state of insulator surfaces needs to be proposed, as well as to explore new materials and structures for roof insulators in strong wind and sand environment.
{"title":"Discharge Characteristics of Roof Insulators in Strong Wind and Sand Environment: A Review","authors":"Chenguang Yang;Yujun Guo;Zhipeng Shi;Bingkun Li;Xueqin Zhang;Song Xiao;Guangning Wu","doi":"10.1109/TDEI.2024.3454210","DOIUrl":"10.1109/TDEI.2024.3454210","url":null,"abstract":"There is frequent sandstorm weather in the northwest of China. Roof insulator is exposed to strong wind and sand environment for a long time. A large amount of sand will be deposited on the surface, resulting in a reduction of insulation strength along the insulator surface and a gap between the sheds. Also, affected by the abrasive action of sand, the roof insulator surface hydrophobicity decreases, which is easy to trigger the insulator flashover, threatening the safety of train operation. For this purpose, this article reviews the sand charging mechanism, sand accumulation characteristics, surface discharge characteristics, air-gap breakdown characteristics, flashover characteristics of the insulator, and the effects of surface abrasion on the insulation performance in wind and sand environment. Based on the train operating conditions, future research directions are proposed to be carried out. First, it is necessary to study the sand accumulation characteristics of roof insulators under multifactor coupling and establish a simulation model that reflects the distribution and content of sand. Secondly, it is necessary to carry out research on the flashover characteristics of real roof insulators and higher speed wind and sand environments, and to build the quantitative relationship between wind speed, sand particle size, sand concentration and the gap breakdown voltage. Finally, a method to evaluate the abrasion state of insulator surfaces needs to be proposed, as well as to explore new materials and structures for roof insulators in strong wind and sand environment.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"3231-3242"},"PeriodicalIF":2.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Novel Fast Coupled Algorithm for Analyzing the Dynamic Behavior of the Bubble in the Transformer Oil under the Electric Field","authors":"Yanxin Ren, Nana Duan, Yulu Fan, Xinyu Ma, Weijie Xu, Shuhong Wang","doi":"10.1109/tdei.2024.3453786","DOIUrl":"https://doi.org/10.1109/tdei.2024.3453786","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"93 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Random distribution and adsorption characteristics of metal particles and visualization algorithm for DC GIS/GIL","authors":"Yutong Zhang, Luming Xin, Chenbin Jin, Zehua Wu, Shengwu Tan, Jianwei Wei, Peng Liu, Zongren Peng","doi":"10.1109/tdei.2024.3454014","DOIUrl":"https://doi.org/10.1109/tdei.2024.3454014","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-02DOI: 10.1109/TDEI.2024.3453232
Siyan Lin;Kai Zhou;Yuan Li
To address the challenge of acquiring detailed insulation status for long-length submarine cables, this article proposes a branch parameter identification method without manual thresholds, based on an extended Debye model (EDM) and the polarization depolarization current method. First, depolarization current is used to construct a Hankel matrix, and the singular values and incremental sequences of information entropy are acquired by step. Subsequently, the matrix pencil (MP) algorithm is employed to determine the branches with the highest amplitudes, which are successively removed from the original signal. The number of branches is confirmed by minimizing the variance of the information entropy increment sequences according to the characteristics of white noise. Simulation results demonstrate that the proposed method achieves high accuracy even at SNR =30 dB. Moreover, the proposed method remains accurate even when there are significant differences in branch amplitudes. Finally, the proposed method is applied to four in-service submarine cables, and the results are corroborated through comparisons with data obtained from the frequency domain reflection (FDR) method and temperature-measuring optical fiber; thus, validating the effectiveness of the proposed method.
为解决获取长距离海底电缆详细绝缘状态的难题，本文基于扩展德拜模型（EDM）和极化去极化电流法，提出了一种无人工阈值的分支参数识别方法。首先，利用去极化电流构建汉克尔矩阵，并逐步获取奇异值和信息熵增量序列。随后，采用矩阵铅笔（MP）算法确定振幅最大的分支，并从原始信号中依次去除。根据白噪声的特点，通过最小化信息熵增量序列的方差来确认分支的数量。仿真结果表明，即使在信噪比为 30 dB 时，所提出的方法也能达到很高的精度。此外，即使在分支振幅存在显著差异的情况下，所提出的方法仍能保持准确性。最后，将所提方法应用于四条在役海底电缆，通过与频域反射（FDR）方法和测温光纤获得的数据进行比较，证实了所提方法的有效性。
{"title":"Novel Parameter Identification Method of Extended Debye Model for Long-Length Submarine Cables","authors":"Siyan Lin;Kai Zhou;Yuan Li","doi":"10.1109/TDEI.2024.3453232","DOIUrl":"10.1109/TDEI.2024.3453232","url":null,"abstract":"To address the challenge of acquiring detailed insulation status for long-length submarine cables, this article proposes a branch parameter identification method without manual thresholds, based on an extended Debye model (EDM) and the polarization depolarization current method. First, depolarization current is used to construct a Hankel matrix, and the singular values and incremental sequences of information entropy are acquired by step. Subsequently, the matrix pencil (MP) algorithm is employed to determine the branches with the highest amplitudes, which are successively removed from the original signal. The number of branches is confirmed by minimizing the variance of the information entropy increment sequences according to the characteristics of white noise. Simulation results demonstrate that the proposed method achieves high accuracy even at SNR =30 dB. Moreover, the proposed method remains accurate even when there are significant differences in branch amplitudes. Finally, the proposed method is applied to four in-service submarine cables, and the results are corroborated through comparisons with data obtained from the frequency domain reflection (FDR) method and temperature-measuring optical fiber; thus, validating the effectiveness of the proposed method.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 5","pages":"2652-2660"},"PeriodicalIF":2.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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