2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)最新文献_第5页

Streamer Criterion for Designing Gas-Insulated Medium Voltage Switchgear 气体绝缘中压开关柜设计规范

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985391

M. Tefferi, Foster Pyle, Andres Laso, Arturas Dauksas, Kennedy Darko, N. Uzelac, Adrian Scott, Weiran Xu

引用次数: 0

Vibration Characteristics of ± 800kV Converter Transformer Under No-load Condition ±800kV换流变压器空载振动特性研究

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985305

Yao Yuan, Menghao Qian, Linjie Zhao, F. Yin, Liming Wang

引用次数: 0

Insulation Performance of Polypropylene Capacitor Films with Different Biaxial Orientation Ratios 不同双轴取向比聚丙烯电容器膜的绝缘性能

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985366

B. Du, Y. Hou, M. Xiao, Haoliang Liu

引用次数: 0

Gas production characteristics of natural ester insulating oil under surface partial discharge 天然酯类绝缘油表面局部放电产气特性

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985274

Qing Li, M. Dong, Wangzeyu Liu, Qinghua Ma

{"title":"Gas production characteristics of natural ester insulating oil under surface partial discharge","authors":"Qing Li, M. Dong, Wangzeyu Liu, Qinghua Ma","doi":"10.1109/CEIDP55452.2022.9985274","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985274","url":null,"abstract":"Mineral oil, as an insulating medium and coolant, has been used in core power equipment such as power transformer for more than 100 years. Compared with mineral oil and other ester liquids, natural ester insulating oil has higher flash point, biodegradation and better electrical performance, which has a wide application prospect. However, the research on the discharge characteristics and fault criteria of natural ester insulating oil are very limited. In this paper, the gas production characteristics of three kinds of natural ester insulating oil (FR3, RAPO and RDB) and mineral oil under partial discharge along surface were studied and compared. The simulation results of the electrode of weak vertical component surface discharge show that the quarter spherical electrode generates more ideal electric fields than the needle electrode does. The dissolved gases generated in the surface discharge dominated by the vertical electric field, mainly consist of hydrogen, ethane, and acetylene, while the main dissolved gases are hydrogen and ethane when the discharge is dominated by the parallel electric field. The production characteristics of acetylene in esters is significantly different from mineral oil under partial discharge. The IEC ratio method is not suitable for the fault judgement of natural esters. The research is expected to provide a reference for the development of the new detection methods of dissolved gas analysis (DGA) and failure criterion.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"20 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":"123900054","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

Hydrophobicity modification of large-scale PMMA by modularized DBD plasma reactor 模块化DBD等离子体反应器对大型PMMA的疏水性改性

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985352

Xiuhan Guan, Liyan Wang, Fangsong Li, Jingang Xu, Jinzhuo Li, Xi Zhu, Fang Zhi

{"title":"Hydrophobicity modification of large-scale PMMA by modularized DBD plasma reactor","authors":"Xiuhan Guan, Liyan Wang, Fangsong Li, Jingang Xu, Jinzhuo Li, Xi Zhu, Fang Zhi","doi":"10.1109/CEIDP55452.2022.9985352","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985352","url":null,"abstract":"Improving the hydrophobicity of insulation surface is an effective method to enhance the electrical insulating performance of outdoor insulation. Atmospheric pressure low temperature plasma technology has made great progress in material surface modification, but most of the existing plasma reactors range in size from a few to tens of centimeters, which cannot meet the need for efficient surface modification of large-scale insulating materials. In this paper, a novel modularized dielectric barrier discharge (MDBD) reactor with gas path optimization and discharge regulation was designed, which was applied to deposit functionalized thin film on the surface of large-scale polymethyl methacrylate (PMMA). The results show that the MDBD reactor with length of 1120 mm achieves uniform discharge, and the addition of precursor hexamethyldisiloxane (HMDSO) promotes first and then suppresses the discharge power of Ar plasma. The water contact angle (WCA) of PMMA increases after the MDBD treatment and the WCA in different positions does not exceed ±5°, indicating the uniform modification of MDBD treatment. Furthermore, the surface properties of PMMA are obviously affected by the addition amount of HMDSO under MDBD treatment. When the addition is 60 sccm, WCA increases from 67° to 140°, and the flashover voltage increases from 6 kV to 10 kV, demonstrating the improvement of surface properties by the MDBD modification.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"28 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":"127842896","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 moisture diffusion between oil-paper foil layer of transformer bushing by temperature gradient field 温度梯度场对变压器套管油纸箔层间水分扩散的影响

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985299

Siqi Chen, Quanmin Dai, Yongxin Huang, Zhiming Huang

{"title":"The moisture diffusion between oil-paper foil layer of transformer bushing by temperature gradient field","authors":"Siqi Chen, Quanmin Dai, Yongxin Huang, Zhiming Huang","doi":"10.1109/CEIDP55452.2022.9985299","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985299","url":null,"abstract":"Non-uniform dampness of main insulation is a serious defect for the oil-impregnated paper bushing (OIPB) in the transformer, which causes its electric parameters unusually rising, insulation failure and explosion. Temperature gradient field is one of the main factors in the moisture diffusion in transformer bushing accidents. In this paper, by using the method of physical field finite element modeling analysis, the moisture migration patterns under different temperature gradient of oil-impregnated paper insulation bushing was studied from the most intuitionistic image observation. The damp location and diffusion process of water concentration under the temperature were obtained. The results show as follows: 1) at the temperature from 20°C to 40°C, the moisture migration speed in bushing under the action of each increasing 10°C is much less than that of 50°C to 70°C. At the same diffusion time, the increment of temperature accelerates the degree of moisture diffusion. 2) There is an obvious asymmetry in the upper and lower parts of the bushing in the concentration visual cloud picture of moisture content. 3) The aluminum foil inside the core blocks unevenly the water diffusion among multi-layer oil-paper core, forming several local dry and wet areas, which eventually leads to severe local insulation failure of the bushing.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"47 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":"115427709","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

Partial Discharge Behaviour Evaluation on MOSFET Employed in Automotive Applications 汽车用MOSFET局部放电行为评估

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985329

G. Akbar, A. Imburgia, G. Rizzo, Alessio Di Fatta, S. Kaziz, P. Romano, G. Ala, F. Viola

{"title":"Partial Discharge Behaviour Evaluation on MOSFET Employed in Automotive Applications","authors":"G. Akbar, A. Imburgia, G. Rizzo, Alessio Di Fatta, S. Kaziz, P. Romano, G. Ala, F. Viola","doi":"10.1109/CEIDP55452.2022.9985329","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985329","url":null,"abstract":"This paper is focused on the measurement of partial discharges in the Silicon Carbide MOSFET. The latter represents a recent developed power electronics device, which has improved characteristics compared to the traditional Silicon MOSFET. The new technology has been conceived in order to satisfy the new market needs. With the ever-increasing development of the electric mobility sector, the need for ever more performing electronic power devices grows. The main features provided by the Silicon Carbide device were found in literature and concern a great thermal conductivity, wide bandgap, high power and high working temperature. However, considering the high voltage at which these devices work, also taking into account their small geometric dimensions, it is essential to evaluate the behavior from the partial discharges point of view. Based on the above, the aim of the present work is the measurement of partial discharges in ten different Silicon Carbide MOSFET devices in order to evaluate the electrical performances of the new proposed material as well as the quality of their manufacturing process. Experimental tests have been carried out by taking into account the Standard CEI EN 60270 for the realization of the measurement setup and the Standard CEI EN 61287 for the measurement procedure. In particular, the latter Standard provides the guidelines for the applied voltage waveform. Measurement results showed that no partial discharge phenomena occur in all the specimens under tests. Therefore, the SiC MOSFET passed the partial discharge test successfully.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"35 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":"127061175","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

Research on Electrical and Mechanical Fault Diagnosis of High-Voltage Circuit Breaker Based on Multi-sensor Information Fusion 基于多传感器信息融合的高压断路器机电故障诊断研究

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985294

Qinghua Ma, Ming Dong, Qing Li, Yadong Xing, Yi Li, Qianyu Li, Lemeng Zhang

{"title":"Research on Electrical and Mechanical Fault Diagnosis of High-Voltage Circuit Breaker Based on Multi-sensor Information Fusion","authors":"Qinghua Ma, Ming Dong, Qing Li, Yadong Xing, Yi Li, Qianyu Li, Lemeng Zhang","doi":"10.1109/CEIDP55452.2022.9985294","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985294","url":null,"abstract":"Traditional mechanical and electrical fault diagnosis models for high-voltage circuit breakers (HVCBs) encounter the following problems: the recognition accuracy is low, and the overfitting phenomenon of the model is serious, making its generalization ability poor. To overcome above problems, this paper proposed a new diagnosis model of HVCBs based on the multi-sensor information fusion and the multi-depth neural networks (Multi-DNN). This approach used fifteen typical time-domain features extracted from signals of exciting coil current and angular displacement to indicate the operational state of HVCBs, and combined the multiple deep neural networks (DNN) to improve the accuracy and standard deviation. Six operational states were simulated based on the experimental platform, including normal state, two typical mechanical faults and four typical electrical faults, and the coil current and angular displacement signals are collected in each state to verify the effectiveness of the proposed model. The experimental results showed that, compared with the traditional fault diagnosis model, the Multi-DNN based on multi-sensor information fusion can be applied to finding a better equilibrium between underfitting and overfitting phenomenon of the model.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"132 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":"124270703","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

Electroluminescence Characteristics of Epoxy/TiO2 Nanocomposites 环氧树脂/TiO2纳米复合材料的电致发光特性

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985385

M. Hirai, M. Kurimoto, K. Tohyama, T. Sawada, S. Yoshida, T. Umemoto, H. Muto

引用次数: 0

The Effects of Common Inorganic Fillers on the Conductivity of Spacecraft Polymers 常用无机填料对航天器聚合物电导率的影响

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985291

A. Andersen, N. Green, Q. Chen

引用次数: 0