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2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)最新文献

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Modeling of Microcapsule-based Self-healing Material to Achieve Better Recovering from Electrical Tree Defects 基于微胶囊的自愈材料建模以实现更好的电树缺陷修复
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437458
Jiaye Xie, Yujie Zhu, Qi Li, Jun Hu, Jinliang He
{"title":"Modeling of Microcapsule-based Self-healing Material to Achieve Better Recovering from Electrical Tree Defects","authors":"Jiaye Xie, Yujie Zhu, Qi Li, Jun Hu, Jinliang He","doi":"10.1109/CEIDP49254.2020.9437458","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437458","url":null,"abstract":"Microcapsule-based self-healing material has been developed to repair the electrical tree defect, which is regarded as the major factor that results in electrical damage of polymer insulations. Compared to heal mechanical cracks, it is more complex to introduce self-healing capacity to insulation material since the material requires higher property and the healing process faces more severe conditions. In this work, microcapsule-based self-healing insulating material containing electrical tree channels is modeled. The mechanism by which self-healing material heals the electrical tree and recovers the dielectric property is demonstrated by simulating the self-healing material with healing agent before filling, after filling and after cured. The results of the simulation give guidance for the design of those material to achieve better healing performance.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127284198","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
The effect of co-doped with nano- MgO and nano-TiO2 on breakdown strength and aging life of polyimide nanocomposites 纳米MgO和纳米tio2共掺杂对聚酰亚胺纳米复合材料击穿强度和老化寿命的影响
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437435
Yushu Li, Sang Cheng, Qi Li, Jinliang He
{"title":"The effect of co-doped with nano- MgO and nano-TiO2 on breakdown strength and aging life of polyimide nanocomposites","authors":"Yushu Li, Sang Cheng, Qi Li, Jinliang He","doi":"10.1109/CEIDP49254.2020.9437435","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437435","url":null,"abstract":"As a high-temperature insulating material, polyimide is widely used in the inter-turn insulation of motors. In the actual working conditions, polyimide which works under long-term high-frequency square pulse wave, is prone to premature aging, and even breakdown. Most of the researchers investigated the polyimide polymer doped with single nanoparticles to improve its performance. However, the polyimide nanocomposite films doped with various nanoparticles has not been widely studied. In this paper, the polyimide nanocomposite films doped with surface modified nano-MgO and nano-TiO2were prepared by in-situ polymerization. Furthermore, the influence and mechanism of the doped nanoparticles was proposed based on the measurement of the breakdown strength and the corona aging life. The experimental results show that the polyimide nanocomposite films doped with nano-MgO and nano-TiO2 can improve the breakdown strength and the aging life simultaneously. This research has a practical significance on the modification of polyimide material.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133799072","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
Analysis of Internal Electric Field and Optimization of Insulation Structure in Metallized Film Capacitors 金属化薄膜电容器内部电场分析及绝缘结构优化
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437485
Shouchao Huo, Dan Xu, Lin Liu, X. Bian
{"title":"Analysis of Internal Electric Field and Optimization of Insulation Structure in Metallized Film Capacitors","authors":"Shouchao Huo, Dan Xu, Lin Liu, X. Bian","doi":"10.1109/CEIDP49254.2020.9437485","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437485","url":null,"abstract":"As the applied voltage increases, partial discharge has become one of the most important factors affecting the service life of metallized film capacitors. Therefore, the insulating structure of the capacitor needs to be optimized to increase the insulating strength. In this paper, a metallized film capacitor is studied by simulation. Its simulation results show that the maximum electric field strength occur at the edges (inside) of the metallization, the thickness of the metallization and the smoothness of the metallization edges also have a great influence on the maximum electric field strength, and the calculation results of the model established after reducing film number and film width in the correct way are valid. Therefore, a targeted increase in the thickness of the dielectric at the metallization edges is an effective way to reduce the occurrence of partial discharge as well as enhance the reliability of capacitors. In addition, proper metallization thickness and metallization edge treatment can also improve the dielectric strength of the capacitor to some extent.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132564119","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
Acoustic Diagnosis of Partial Discharges in Transformers 变压器局部放电的声学诊断
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437381
Huang Shan, Liu Hongjing, Qin Huan, Qiu Shou, Jian Wei, Miao Wang, Wu Linlin, Liu Kewen, Wu Guoxin, Li Min
{"title":"Acoustic Diagnosis of Partial Discharges in Transformers","authors":"Huang Shan, Liu Hongjing, Qin Huan, Qiu Shou, Jian Wei, Miao Wang, Wu Linlin, Liu Kewen, Wu Guoxin, Li Min","doi":"10.1109/CEIDP49254.2020.9437381","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437381","url":null,"abstract":"Partial discharge in the transformer may generate noise. In view of this characteristic, it is proposed to apply the audio detection method to the diagnosis of partial discharge. Discharge faults in the transformer were simulated, and a method for diagnosis of these faults based on audio is studied. Three models for typical partial discharges are designed, namely the plate electrode discharge, the pin plate electrode discharge and the surface discharge. The audio produced by these discharges was recorded and hence an abnormal audio database was built. Using wavelet packet algorithm, audio features of partial discharge are extracted, and then the neural network algorithm is used to distinguish one kind of discharges from others successfully.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129545860","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
The Influence of Positive Temperature Coefficient Material on the DC Electric Field within Epoxy Composites 正温度系数材料对环氧复合材料直流电场的影响
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437556
Chenyuan Teng, Yuanxiang Zhou, Ling Zhang, Yunxiao Zhang, Xuewei Wang, Zixia Cheng, Meng Huang
{"title":"The Influence of Positive Temperature Coefficient Material on the DC Electric Field within Epoxy Composites","authors":"Chenyuan Teng, Yuanxiang Zhou, Ling Zhang, Yunxiao Zhang, Xuewei Wang, Zixia Cheng, Meng Huang","doi":"10.1109/CEIDP49254.2020.9437556","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437556","url":null,"abstract":"Negative temperature (NT) coefficient electrical resistivity of insulating materials causes the distortion of DC electric field, increasing the design and manufacture difficulty of HVDC equipment. The ceramic with positive temperature coefficient (PTC) electrical resistivity was doped into epoxy resin to weaken its temperature dependence of electrical resistivity (0~35 wt%). The electric field and temperature distribution under temperature gradient were simulated. The PTC effect of fillers is able to mitigate the distortion of electric field under temperature gradient, which is through the synergistic optimization of both electrical resistivity-temperature characteristic and thermal conductivity. The optimization of electric field distribution within insulation via BT60/epoxy composites has potential to be used in HVDC electrical equipment.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128024079","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: 2
Electrical Fault Simulation and Gas Production Law of Dodecylbenzene Insulating Oil Based on Dissolved Gas Analysis 基于溶解气分析的十二烷基苯绝缘油电气故障仿真及产气规律
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437448
Y.Y. Zheng, H.Q. Li, C. Zhang, Q.X. Yu, L. Zhong, J. Liao, F. Gao, S. Yu, X.W. Liu
{"title":"Electrical Fault Simulation and Gas Production Law of Dodecylbenzene Insulating Oil Based on Dissolved Gas Analysis","authors":"Y.Y. Zheng, H.Q. Li, C. Zhang, Q.X. Yu, L. Zhong, J. Liao, F. Gao, S. Yu, X.W. Liu","doi":"10.1109/CEIDP49254.2020.9437448","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437448","url":null,"abstract":"Dodecylbenzene insulating oil is a liquid dielectric material widely used in self-contained high-voltage cables and accessories with low viscosity, low dielectric loss, good gas evolution in electric field and high breakdown field strength, but has less research and application in China. In this paper, dodecylbenzene insulating oil produced by an enterprise in Nanjing is taken as the research object, and its physical, chemical and electrical properties were tested. The gas production law of 7 characteristic gases (H2, CO, CO2, CH4, etc.) in dodecylbenzene insulating oil during breakdown and oil paper surface flashover under AC voltage was mainly studied. IEC three ratio method and the Duval Triangle were used as the fault criteria and compared with the actual fault types to verify their applicability to dodecylbenzene insulating oil. The results show that dodecylbenzene insulating oil has good physical, chemical and dielectric properties; in addition to CO2, the concentrations of H2 and C2H2 increase significantly in the power frequency breakdown test, and H2, C2H2 and CO in the power frequency surface flashover test. The determination results using the IEC three ratio method are all low-energy discharges, and the Duval triangle method are all high-energy discharges. From the experimental results, it can be obtained that the IEC three ratio method is more accurate and practical for the electrical fault simulation experiment set in this paper.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115022482","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
Comparative Analysis of Capacitive Sensors with Different Geometrical layouts for Cable Insulation Degradation Detection 不同几何布局电容式传感器在电缆绝缘劣化检测中的比较分析
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437542
Md. Nazmul Al-Imran, M. Ali, S. Glass, L. Fifield
{"title":"Comparative Analysis of Capacitive Sensors with Different Geometrical layouts for Cable Insulation Degradation Detection","authors":"Md. Nazmul Al-Imran, M. Ali, S. Glass, L. Fifield","doi":"10.1109/CEIDP49254.2020.9437542","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437542","url":null,"abstract":"This paper presents a comparative analysis between Interdigital Capacitor (IDC) sensor and Serpentine Capacitive (SRC) sensor. The effects of electrode layouts on sensor performance are studied by means of finite element simulation where the geometrical dimensions (except electrode length) and material characteristics of both sensors are identical. Conformal IDC and SRC sensors with equal sensor area are modeled on a cable surface. The simulation results show a tradeoff between IDC and SRC sensors in terms of sensitivity and penetration depth. The SRC sensor shows 13.3% increase in sensitivity and 16.8% increase in capacitance compared to the IDC sensor, though the electric field penetration depth of the SRC sensor is 18.8% lower than the IDC sensor. In addition, the effects of change in electrode width, inter-electrode gap, and number of electrodes on SRC and IDC sensor's comparative performance are evaluated.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125372703","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: 3
Thermal Characteristics of Various Silicone Rubber Composites Filled with Silica 各种硅填充硅橡胶复合材料的热特性
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437505
K. Khanum, R. Ghunem, A. El-Hag
{"title":"Thermal Characteristics of Various Silicone Rubber Composites Filled with Silica","authors":"K. Khanum, R. Ghunem, A. El-Hag","doi":"10.1109/CEIDP49254.2020.9437505","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437505","url":null,"abstract":"Thermal conductivity enhanced by the addition of inorganic fillers such as, natural silica has been shown as critical factor improving the erosion performance of silicone rubber filled with micro-sized silica in the inclined plane tracking and erosion test (IPT). In this research, different thermal characteristics of SiR composites filled at 50 w% with natural silica of different median particle sizes (2, 5 and 10 µm) are investigated in both the condensed and gas phases. The thermal conductivity was shown to decrease from 0.5905 W/m.K with 10 µm silica to 0.5230 W/m.K with 2 µm silica, despite the interaction promoted between the 2 µm silica and the polymer. Accordingly, the improvement in the thermal conductivity of SiR by the addition of micro-sized natural silica was elucidated from different perspective than the filler-SiR interaction. The suppression of depolymerization was more evident with 2 µm silica due to the enhanced interaction between the filler and the polymer as indicated by the thermogravimetric and differential thermal analyses.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125871245","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
Estimation of Power Transformer Insulation Ageing Using Optical Coherence Tomography 利用光学相干层析技术估计电力变压器绝缘老化
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437437
Biniyam Mezgebo, B. Kordi, Namal Fernando, S. Sherif
{"title":"Estimation of Power Transformer Insulation Ageing Using Optical Coherence Tomography","authors":"Biniyam Mezgebo, B. Kordi, Namal Fernando, S. Sherif","doi":"10.1109/CEIDP49254.2020.9437437","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437437","url":null,"abstract":"Oil-impregnated cellulose material, such as Kraft paper, is an essential part of the insulation system of a power transformer. The mechanical strength of Kraft paper directly impacts the safety of operating a power transformer. Obtaining structural subsurface images of the transformer paper would offer significantly more information than from current optical methods. This subsurface imaging could allow accurate estimation of the operational age of the transformer insulation, beyond only classifying it as belonging to a broad age group. In this work, optical coherence tomography (OCT), a subsurface imaging technique, is used to acquire subsurface structural images of the thermally-aged Kraft paper samples. Statistical texture analysis is applied to these OCT images to convert each image into a spatial grayscale level dependence matrix (SGLDM), from which three Haralick texture features are calculated. These three features are used to estimate the ageing time of thermally-aged Kraft paper.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114929687","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
Quantitative investigation and modelling of the electrical response of XLPE insulation with different filler content 不同填料含量交联聚乙烯绝缘电响应的定量研究与建模
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2020-10-18 DOI: 10.1109/CEIDP49254.2020.9437470
S. V. Suraci, D. Fabiani
{"title":"Quantitative investigation and modelling of the electrical response of XLPE insulation with different filler content","authors":"S. V. Suraci, D. Fabiani","doi":"10.1109/CEIDP49254.2020.9437470","DOIUrl":"https://doi.org/10.1109/CEIDP49254.2020.9437470","url":null,"abstract":"In this article, electrical properties of XLPE-based materials with different additives are reported. In particular, it is shown that additives can deeply influence, among others, the complex permittivity of the analyzed material, putting the basis for a modelling approach which correlates the variation of the dielectric properties with the additive concentrations and characteristics.","PeriodicalId":170813,"journal":{"name":"2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128117302","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: 3
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