IEEE Transactions on Dielectrics and Electrical Insulation最新文献

{"title":"Improved Electrical and Mechanical Properties of PP/POE Cable Insulation by Long-Chain Branched Polypropylene Synergistic Blending","authors":"Jianmei Cao;Kui Li;Boxue Du;Baoshuai Du;Zhiyuan Zhang;Yunqi Xing","doi":"10.1109/TDEI.2024.3521878","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3521878","url":null,"abstract":"In this article, the long-chain branched polypropylene (LCBPP) synergistic blending method is proposed to improve the electrical and mechanical properties of polypropylene (PP)/polyolefin elastomer (POE) cable insulation. The results show that 5 wt% LCBPP, 40 wt% POE, and 55 wt% PP synergistic blending cable insulation material could reduce the leakage conductivity to 30.39%–46.24% at different temperatures. The breakdown strength is increased by 23.68%–33.98%. Furthermore, the tensile strength and elongation at break are increased by 20.46% and 16.88%, respectively. The LCBPP synergistic blending method could introduce deeper trap levels, contributing to adjusting carrier transport. Furthermore, the compatibility of PP and POE is improved. The research results provide a reference for the performance modification of PP/POE cable insulation.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1591-1598"},"PeriodicalIF":2.9,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205833","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":"The Space Charge Measurement by Pulsed Electroacoustic Method up to 200 ∘C","authors":"Bingjie Wang;Jiaxin Chen;Yuntong Ma;Kai Wu","doi":"10.1109/TDEI.2024.3521882","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3521882","url":null,"abstract":"In this letter, an improved pulsed electroacoustic (PEA) device is modified to test the space charge distributions in polytetrafluoroethylene (PTFE) at high temperatures (<inline-formula> <tex-math>$90~^{circ }$ </tex-math></inline-formula>C–<inline-formula> <tex-math>$200~^{circ }$ </tex-math></inline-formula>C). The LiNbO3 sensor and temperature controller suitable for high temperature’s measurement are designed. The voltage protocol is composed of electric field application from 30 to 50 kV/mm in a stepwise manner with 30-min polarization and depolarization. It shows that LiNbO3 can be used as a sensor material to test space charge at high temperatures up to <inline-formula> <tex-math>$200~^{circ }$ </tex-math></inline-formula>C. The PTFE has no obvious charge injection below <inline-formula> <tex-math>$150~^{circ }$ </tex-math></inline-formula>C. Above <inline-formula> <tex-math>$150~^{circ }$ </tex-math></inline-formula>C, the anode injects a large amount of positive charge, which migrates to the cathode in the form of space charge packets. It is expected that this PEA measurement technique is helpful to develop insulating materials for high temperatures.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 1","pages":"627-629"},"PeriodicalIF":2.9,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361035","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":"Excellent DC Electrical Performance of a Byproduct-Free Crosslinked Polyethylene Copolymer Blend for High-Voltage Cables","authors":"Yifan Wu;Shihang Wang;Bingrong Huang;Xinru Yang;Shengtao Li","doi":"10.1109/TDEI.2024.3521874","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3521874","url":null,"abstract":"The byproducts of crosslinked polyethylene (XLPE) for high-voltage cables reduce the purity of the insulation, thereby limiting its dc electrical performance. The byproduct-free click chemistry reaction between polyethylene copolymers demonstrates significant potential as an alternative to peroxide crosslinking. In this article, polyethylene copolymer blends were prepared, and their thermal properties, chemical composition, crystalline structure, and dielectric characteristics were evaluated comprehensively. A low-density polyethylene (LDPE) and the resulting XLPE for high-voltage cables were selected as references. In addition, the effect of antioxidant on the structure and properties of polyethylene copolymer blends was explored. The results show that the polyethylene copolymer blends exhibit superior dc electrical performance owing to the higher density of deep traps. The incorporation of polar groups in the copolymer blends affects the development of crystallization, resulting in reduced crystallinity and diminished spherulite size. More importantly, the polar groups in the copolymer blends significantly increase the density of deep traps, which suppress the space charge injection and enhance the dc breakdown strength. These findings suggest that this novel insulating material holds promising prospects in the field of dc cable insulation.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"658-666"},"PeriodicalIF":2.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761447","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":"Insights Into Substrate Dielectric Engineering of Monolayer MoS₂ FET: Digital/Analog/RF Perspective to Circuit Implementation","authors":"Venkata Ramakrishna Kotha;Sresta Valasa;Narendar Vadthiya","doi":"10.1109/TDEI.2024.3522223","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3522223","url":null,"abstract":"For the first time, we investigate the effects of several substrate dielectric materials (SDMs) using well-calibrated Technology Computer Aided Design (TCAD) physics, ranging from low to high-k, such as SiO2, Si3N4, Al2O3, ZrO2, HfO2, Ta2O5, and TiO2 on both digital and analog/radio frequency (RF) metrics of ML MoS2 MOSFET. Employing the non-equilibrium green’s function (NEGF) approach, self-consistent solutions to the 2-D Poisson’s equation, and density gradient (DG) models we found that employing a high-k SDM beyond Ta2O5 material gives deteriorated performance. A marginal variation in both Ta2O5 (<inline-formula> <tex-math>${k} =32$ </tex-math></inline-formula>) and TiO2 (<inline-formula> <tex-math>${k} =80$ </tex-math></inline-formula>) is observed for digital applications, whereas the analog/RF performances are significantly degraded with TiO2 material, highlighting that a <inline-formula> <tex-math>${k} =80$ </tex-math></inline-formula> is not suitable for these applications. The Ta2O5 exhibits better dc performance with an improvement in <inline-formula> <tex-math>${I} _{text {on}}$ </tex-math></inline-formula> of ~62.18% and <inline-formula> <tex-math>${I} _{text {on}}$ </tex-math></inline-formula>/<inline-formula> <tex-math>${I} _{text {off}}$ </tex-math></inline-formula> ratio of around four times compared to SiO2 substrates. The <inline-formula> <tex-math>${g} _{m}$ </tex-math></inline-formula> is improved by <inline-formula> <tex-math>$sim 5.45times $ </tex-math></inline-formula> while a marginal improvement in <inline-formula> <tex-math>${A} _{V}$ </tex-math></inline-formula> is noticed as we move from high-k SDM to low-k SDM. An ~44.72% reduction in <inline-formula> <tex-math>${f} _{T}$ </tex-math></inline-formula> is observed for TiO2 material, whereas only ~8.27% reduction is noticed for Ta2O5 material in comparison with the SiO2 material. Further investigations involving variations in gate length (<inline-formula> <tex-math>${L} _{g}$ </tex-math></inline-formula>) and temperature for all SDMs is analyzed, and it is inferred that downscaling of <inline-formula> <tex-math>${L} _{g}$ </tex-math></inline-formula> produces better performance for analog/RF applications, whereas reduction in temperature is suitable for analog applications. The design and evaluation of a CS amplifier further highlight the practical implications of our research, demonstrating a substantial gain enhancement with Ta2O5 (<inline-formula> <tex-math>$sim 1.98times $ </tex-math></inline-formula>) compared to SiO2.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1549-1556"},"PeriodicalIF":2.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205974","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":"Partial Discharge Behavior of Potential Green Alternative Nanomodified Pongamia Oil for Transformer","authors":"R. Madavan;M. Yamuna;Pawel Rozga","doi":"10.1109/TDEI.2024.3522216","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3522216","url":null,"abstract":"The potential utilization of Pongamia oil (PO)-based nanofluid (NF) as an insulating material for electrical purposes is examined in this study through an analysis of its partial discharge (PD) characteristics. The experiments involve testing modified with Fe3O4, TiO2, and ZnO nanoparticles (NPs) PO at varying mass fractions 0.1%, 0.2%, and 0.3%, utilizing different electrode configurations to generate PDs in the form of corona, internal, and surface discharges. The dependence of PD inception voltage (PDIV) on electrode geometry is investigated. In addition, phase-resolved PD (PRPD) pattern analysis under different conditions is carried out to gain insights into the real-time impact of element geometry on PD occurrences. With a focus on comprehending the effect of the nanofiller volume fraction in PO, the Weibull statistical technique is used to evaluate PD characteristic values such as scale and shape parameters, repetition rate, and skewness. The results of the experiments showed how significantly Fe3O4, TiO2, and ZnO NPs added to PO affect PD properties. It is noted from the experiments that the Fe3O4 NPs blended PO-based NFs recorded lesser PD activities than the TiO2 and ZnO NPs blended PO-based NFs.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1728-1736"},"PeriodicalIF":2.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196672","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":"Pollution Flashover Characteristics of Hydrophilic Surface Under Superimposed AC/DC Voltage","authors":"Sirui Chen;Yang Luo;Yanxin Tu;Lu Wen;Hongchuan Dong;Liming Wang;Bin Cao","doi":"10.1109/TDEI.2024.3521881","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3521881","url":null,"abstract":"Insulation devices in the flexible high-voltage direct current (HVdc) transmission system couple a specific ac component. To reveal the pollution flashover characteristics of hydrophilic surfaces under superimposed ac/dc voltage, this article designs a power supply system capable of generating superimposed voltage and conducts artificial pollution flashover tests on glass specimens. Under superimposed voltage, the arc development speed before flashover is faster, and the arc extinguishing and reignition phenomena occur even without a zero-crossing point. The ac component of the pollution flashover voltage decreases with the dc component superimposition, and this impact diminishes as pollution increases. When described as a peak value, the difference in flashover voltage under the same pollution degree is within 6.7% for different voltage configurations, while in terms of root-mean-square (rms) value, the difference ranges from 13.8% to 19.8%. The difference in flashover voltage under superimposed ac/dc voltage is also related to power supply characteristics, especially for heavily polluted surfaces. These results provide references for external insulation configuration in flexible HVdc projects.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1777-1784"},"PeriodicalIF":2.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196884","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":"Inhibitory Mechanism of DC GIS/GIL Ground Electrode-Coating on Charged Moving Metal Particles and Optimal Design","authors":"Qiuyu Geng;Gengyan Liu;Jian Wang;Yalin Bian;Qingmin Li;Zhong Fu","doi":"10.1109/TDEI.2024.3521871","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3521871","url":null,"abstract":"Metal particles in gas-insulated switchgear (GIS) and gas-insulated transmission lines (GILs) are major causes of insulation failures. Ground electrode coatings can effectively limit the movement of these particles, but theoretical research and design guidelines for optimizing such coatings are lacking. This study investigates the effectiveness of ground electrode coatings in restraining metal particle movement by characterizing particle collisions with the coating surface and developing an inversion algorithm to track particle charge, achieving less than 7% relative error. It identifies “charge inertia” as a key factor in inhibiting particle movement upon collision with the coating. The coating’s high resistance, dipole gravity, and surface adhesion work together to inhibit particle motion, preventing further lifting after particles come to rest. An equivalent model of the dual inhibition effects of GIS/GIL electrode coatings, including surface adhesion on particles and charge inhibition effect, is established. The study provides guidelines for selecting low-conductivity, high-dielectric coatings and optimizes design to balance adhesion work. Preliminary tests with polyimide coatings demonstrate an 85%–120% increase in particle lifting voltage, confirming the design’ effectiveness. These findings are critical for the engineering application of electrode coatings in GIS/GIL systems.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1745-1754"},"PeriodicalIF":2.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196885","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":"IEEE Transactions on Dielectrics and Electrical Insulation Information for Authors","authors":"","doi":"10.1109/TDEI.2024.3497456","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3497456","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"C4-C4"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter of Appreciation","authors":"","doi":"10.1109/TDEI.2024.3509112","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3509112","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"3504-3507"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TechRxiv: Share Your Preprint Research With the World!","authors":"","doi":"10.1109/TDEI.2024.3513493","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3513493","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"3508-3508"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}