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2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)最新文献

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Breakdown Prediction Modelling of XLPE Insulation under HVDC Thermoelectrical Stress 高压直流热电应力作用下交联聚乙烯绝缘击穿预测模型
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985270
J. Fernandez, R. Guffond
{"title":"Breakdown Prediction Modelling of XLPE Insulation under HVDC Thermoelectrical Stress","authors":"J. Fernandez, R. Guffond","doi":"10.1109/CEIDP55452.2022.9985270","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985270","url":null,"abstract":"Understanding and monitoring the breakdown of insulating materials for power cable is a key societal aspect for energy distribution improvement. This work aims to study the impact of semicon (SC) protrusions produced in Cross-Linked Polyethylene (XLPE) extruded cables on their performance for High-Voltage Direct Current (HVDC) distribution. The breakdown strength of a SC-XLPE-SC material is measured in presence of an artificial protrusion. In parallel, a physical model based on microstructural state distribution of an XLPE material is used to simulate a numerical breakdown test with and without protrusion. Experimental and numerical results are compared and discussed.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133995949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Conductivity Parameters of EPDM on Electric Field Distribution of Insulating Interface in HVDC Cable Joints EPDM导电参数对高压直流电缆接头绝缘界面电场分布的影响
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985313
M. Dai, Wenpeng Li, Qiang Xu, Tianyu Yang, Bo Qiao, W. Zhao, L. Zhong
{"title":"Influence of Conductivity Parameters of EPDM on Electric Field Distribution of Insulating Interface in HVDC Cable Joints","authors":"M. Dai, Wenpeng Li, Qiang Xu, Tianyu Yang, Bo Qiao, W. Zhao, L. Zhong","doi":"10.1109/CEIDP55452.2022.9985313","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985313","url":null,"abstract":"HVDC cable accessories are an important part of the DC cable system, and it is also the weakness of the cable lines. Due to the difference in conductivity between EPDM and XLPE, the insulating interface space charge accumulates and the field strength increases, resulting in Insulation failure. In this paper, through simulation research, the conductivity parameters of EPDM are adjusted to observe its influence on the electric field distribution at the insulation interface. Based on the simulation results, the guidance for the modification of EPDM materials is put forward.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131451952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of Electrical Tree Breakdown Process in Epoxy Resin with Phase Field Modeling 用相场模型模拟环氧树脂电树击穿过程
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985345
Y. Qi, Tao Xu, Yufan Wang, Zehui Zhang, Jin Li
{"title":"Simulation of Electrical Tree Breakdown Process in Epoxy Resin with Phase Field Modeling","authors":"Y. Qi, Tao Xu, Yufan Wang, Zehui Zhang, Jin Li","doi":"10.1109/CEIDP55452.2022.9985345","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985345","url":null,"abstract":"The supporting insulation components of high-voltage GIL/GIS and cable terminals and other power equipment are usually cast with epoxy resin/alumina mixture, which frequently leads to breakdown and disintegration under complex operating conditions, which seriously threatens the safe and stable operation of power system. In this paper, the research progress of numerical simulation of electrical tree deterioration is introduced, and the phase-field simulation model of epoxy resin composites is established. The effects of temperature gradient and filler distribution on electrical tree are discussed. The simulation model can predict the breakdown time in epoxy and its composite.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134464403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of DMP-30 Contents on Molecular Orbital Energy Level Distribution of Anhydride Cured Epoxy Resin DMP-30含量对酸酐固化环氧树脂分子轨道能级分布的影响
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985392
Jin Li, Pengxiang Guo, Q. Tang, Guanfei Zhao, X. Kong, Boxue Du
{"title":"Effects of DMP-30 Contents on Molecular Orbital Energy Level Distribution of Anhydride Cured Epoxy Resin","authors":"Jin Li, Pengxiang Guo, Q. Tang, Guanfei Zhao, X. Kong, Boxue Du","doi":"10.1109/CEIDP55452.2022.9985392","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985392","url":null,"abstract":"In this paper, the quantum chemical calculation was applied to obtain the effects of DMP-30 contents on the molecular orbital energy level distribution of anhydride cured epoxy resin. When the accelerator is small or appropriate, the LUMO and Homo orbitals of the epoxy resin are concentrated around the benzene ring; When the accelerator is excessive, the LUMO and Homo orbitals of the epoxy resin concentrate on the epoxy monomer molecules that are not crosslinked to the main chain. The electron affinity energies of the molecular systems under the three structures are 0.21 eV, 0.18 eV and 0.18 eV, respectively, with little change; The band gaps are 6.59 eV, 6.24 eV and 6.41 eV, respectively. The decrease of energy band gap makes it easier for electrons to transition from valence band to conduction band, which will lead to the increase of conductivity.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132500432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dielectric properties of fly ash geopolymers with two types of potassium activators 含两种钾活化剂的粉煤灰地聚合物介电性能研究
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985249
P. Brisebois, M. Di Mare, C. Ouellet-Plamondon
{"title":"Dielectric properties of fly ash geopolymers with two types of potassium activators","authors":"P. Brisebois, M. Di Mare, C. Ouellet-Plamondon","doi":"10.1109/CEIDP55452.2022.9985249","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985249","url":null,"abstract":"The interest for geopolymer materials for cement and binder applications has increased in recent years due to their compliance with green chemistry and low cost. In this study, we show the dynamics of water in fly ash-based geopolymers using low-temperature broadband dielectric impedance spectroscopy (BDS). Confined water has a major influence on properties such as durability and performance because it affects the porosity and pore size distribution. Hence, the dielectric measurements allow probing of the porous structure of the geopolymers.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133125865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship between Escherichia coli Sterilization in Ice and Electric Field Application 冰中大肠杆菌灭菌与电场应用的关系
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985386
M. Watanabe, Yukiko Hikosaka, Y. Murakami, Y. Muramoto
{"title":"Relationship between Escherichia coli Sterilization in Ice and Electric Field Application","authors":"M. Watanabe, Yukiko Hikosaka, Y. Murakami, Y. Muramoto","doi":"10.1109/CEIDP55452.2022.9985386","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985386","url":null,"abstract":"This study explored the relationship between sterilization of Escherichia coli in ice and electric field application. The experimental sample was a 0.01 [mol/L] NaCl solution containing E. coli. This sample was frozen at -20[°C], following which the sample was subjected to a DC electric field of 1– 150[V/mm] at -20[°C]. Consequently, the survival ratio of E. coli after only freezing and application of electric field was lower than that of no-treatment. Notably, E. coli cells were damaged by freezing and electric field application. Electrophoresis indicated that more nucleic acids were detected after DC electric field application and after only freezing.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115349780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corona poling for polarization of nanofibrous mats: advantages and open issues 纳米纤维垫的电晕极化:优势和有待解决的问题
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985267
L. Gasperini, G. Selleri, Davide Pegoraro, D. Fabiani
{"title":"Corona poling for polarization of nanofibrous mats: advantages and open issues","authors":"L. Gasperini, G. Selleri, Davide Pegoraro, D. Fabiani","doi":"10.1109/CEIDP55452.2022.9985267","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985267","url":null,"abstract":"This paper deals with the polarization process of piezoelectric nanofibrous mats of PVdF-TrFE by using a corona discharge process. With respect to traditional contact poling this process reduces the electrical breakdown risk which could easily occur when a highly porous mat is placed between two solid electrodes. Different set-up configurations were investigated by varying the applied voltage and the distance between the needle and the sample. The polarized nanofibers show a piezoelectric strain coefficients $(mathrm{d}_{33})$ comparable with the values of a commercial stiff film.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115450455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of Degassing Time on Initiation of Electrical Tree in XLPE 脱气时间对交联聚乙烯电树萌生的影响
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985302
J. He, J. Fang, F. Yang, M. Zhang
{"title":"Effect of Degassing Time on Initiation of Electrical Tree in XLPE","authors":"J. He, J. Fang, F. Yang, M. Zhang","doi":"10.1109/CEIDP55452.2022.9985302","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985302","url":null,"abstract":"Polar crosslinking by-products are prone to be produced in the process of preparing crosslinked polyethylene (XLPE) by peroxide crosslinking method. These cross-linking byproducts remain in the dielectric, which is easy to cause electric field distortion. The electrical tree will be caused at the electric field distortion, it tends to degrade or even breakdown the cable insulation. Therefore, it is necessary to explore the changes of the varieties and contents of crosslinking by-products in the degassing process of XLPE, so as to study the effect of degassing process on the initiation of electrical tree in XLPE. XLPE sheet samples were prepared by hot pressing method. Samples degassed for 0d, 2d, 4d and 6d were obtained in a vacuum drying oven at 70°C. Initiation of electrical tree experiments were carried out on four groups of samples. The varieties and contents of crosslinking by-products were characterized by gas chromatography-mass spectrometry (GC-MS), and the effects of crosslinking by-products on the initiation of electrical tree with different degassing time were studied. The results show that under the set degassing conditions, the sample degassed for 2 days has the highest electrical tree initiation voltage. Compared with degassed 0d, the sample degassed 2d has less pores and relatively dense structure. Compared with degassing for 4d and 6d, the content of acetophenone in degassing for 2 days is higher, and acetophenone as a voltage stabilizer has a good inhibitory effect on electrical tree.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115777977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of Time-Frequency map combined with DBSCAN algorithm for separation of partial discharge pulses under DC voltage 采用时频图结合DBSCAN算法对直流电压下局部放电脉冲进行分离
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985393
Alessio Di Fatta, P. Romano, A. Imburgia, G. Ala, G. Rizzo, V. L. Vigni, M. Albertini, S. F. Bononi
{"title":"Use of Time-Frequency map combined with DBSCAN algorithm for separation of partial discharge pulses under DC voltage","authors":"Alessio Di Fatta, P. Romano, A. Imburgia, G. Ala, G. Rizzo, V. L. Vigni, M. Albertini, S. F. Bononi","doi":"10.1109/CEIDP55452.2022.9985393","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985393","url":null,"abstract":"The Phase-Resolved-Partial-Discharge pattern (PRPD) is a conventional technique used for the evaluation of partial discharges (PD) phenomena in High-Voltage-Alternating-Current (HVAC) systems. This map is constructed by plotting the peak of each detected pulses as a function of the phase angle of the supply voltage. Therefore it is obvious that this technique cannot be used for the analysis of data from PD mesaurement under different supply voltage condition (DC). The aim of this paper is to evaluate the application of the Time-Frequency map (TF map) for the analysis of a dataset obtained from PD measurement under DC voltage. A density-based clustering algorithm was also used to gain more insight from the collected data. The results show that, with this approach, it’s possible to perform a noise rejection and identify PD pulses.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123900150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Charge Evacuation Performance of the Insulating Polymers with Various Surface Roughness 不同表面粗糙度的绝缘聚合物的电荷疏散性能
2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985285
Kai Feng, Jiawei Zhang, Sicheng Qin, Xuan Meng, Cheng Li, Wei Gao
{"title":"Charge Evacuation Performance of the Insulating Polymers with Various Surface Roughness","authors":"Kai Feng, Jiawei Zhang, Sicheng Qin, Xuan Meng, Cheng Li, Wei Gao","doi":"10.1109/CEIDP55452.2022.9985285","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985285","url":null,"abstract":"Polyimide (PI) plays an important role in 5G communications, artificial intelligence, and aerospace, which has excellent dielectric characteristics, high mechanical strength and stable chemical property. However, the performance of polyimide is restricted by surface discharge and flashover induced by the surface charge accumulation of the insulating polymers. The roughness of polymer’s surface can strongly affect the process of the charge transport. Thus, the impact of surface roughness on surface charge characteristics of polyimide was investigated after corona discharge in this work. The results indicated that increasing surface roughness could hinder the accumulation and decay of charges, which could provide an important reference for the development of polyimide in various fields.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121629694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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