IEEE Transactions on Dielectrics and Electrical Insulation
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Year: 2024 | Volume: 31 | Issue: 4
IEEE Transactions on Dielectrics and Electrical Insulation Publication Information
Publication Year: 2024,Page(s):C2 - C2
IEEE Transactions on Dielectrics and Electrical Insulation Publication Information
Year: 2024 | Volume: 31 | Issue: 4
Liquid Phase Deposition of Hafnium Oxide Thin Films
Xuanyu Zhu;Kaixin Zhang;Jie Sun;Chang Lin;Kui Pan;Tianxi Yang;Zhonghang Huang;Liying Deng;Ziwen Yan;Yifeng Liu;Junyang Nie;Qun Yan
Publication Year: 2024,Page(s):1659 - 1665
Hafnium oxide (HfO2) thin films were successfully prepared by the liquid phase deposition (LPD) method. The surface appearance, composition, optical characteristics, and electrical properties of HfO2 thin films generated by LPD were studied, as well as the reaction mechanism. The results reveal that the chemical composition of HfO2 thin films generated by LPD is pure and the structure is dense and...Show More
Reassessing Self-Healing in Metallized Film Capacitors: A Focus on Safety and Damage Analysis
Lei Pan;Feipeng Wang;Yushuang He;Xinbo Sun;Guoqiang Du;Quantong Zhou;Jie Zhang;Zhicheng Zhang;Jian Li
Publication Year: 2024,Page(s):1666 - 1675
Cited by: Papers (30)
Metallized film capacitors (MFCs) are known for their self-healing (SH) properties, enabling efficient and reliable operation, even under challenging conditions. These SH events have the potential to inflict damage on both the polypropylene (PP) film and the electrode layer. However, not all types of SH damage lead to catastrophic failure of the capacitor. Thus, finding the threshold of SH that ha...Show More
Self-Healing in Metallized Film Capacitors: Theory of Breakdown Interruption
Publication Year: 2024,Page(s):1676 - 1684
A theory of self-healing (SH) in metallized film capacitors (MFCs) is introduced. The interruption of the filamentary breakdown (BD) current in the thin dielectric insulation occurs when the thermally driven increase of the series impedance in the electrode metallization destabilizes the BD plasma arc. The interruption process can be described as a switching process which is self-induced by feedba...Show More
Fast Space Charge Measurement of Power Module Packaging Insulation Under Square Wave Voltage Based on High Repetition Frequency Pulsed Electroacoustic Method
Publication Year: 2024,Page(s):1685 - 1693
Cited by: Papers (1)
High voltage power module packaging insulation such as silicone encapsulating elastomer endures unipolar square wave voltage with short transient time (~100 ns, high dV/dt) due to the recent booming of wide bandgap (WBG) semiconductor, which results in space charge accumulation and easier packaging failure compared with the traditional power equipment operating under 50/60 Hz sinusoidal stress. Ho...Show More
Numerical Simulation Research for Space Charge Transport in Coaxial XLPE Cables
Chi Chen;Weiqi Ye;Chuanhui Cheng;Chuang Wang;Xia Wang;Kai Wu
Publication Year: 2024,Page(s):1694 - 1703
Cited by: Papers (1)
Space charge accumulation in cross-linked polyethylene (XLPE) cables can lead to a decrease in electrical performance. The numerical simulation of space charge can explore the interaction and evolution processes between various microscopic particles. In this article, a bipolar charge transport model used for coaxial cables was established. Then, the charge behaviors were investigated, and the infl...Show More
Mitigating Partial Discharge Caused by Steep Voltage Pulses at High Temperatures
Publication Year: 2024,Page(s):1704 - 1710
Cited by: Papers (7)
Electrets are dielectric materials that generate electric fields without a voltage source. Our previous studies reported how one could design, fabricate, and utilize electrets to neutralize locally concentrated high electric fields and mitigate partial discharge (PD) in power electronics systems. While the polymer-based electrets used in our prior work demonstrated impressive performance in reduci...Show More
Novel Antenna for Partial Discharge Detection and Classification: A Convolutional Neural Network-Based Deep Learning Approach
Ahmad Darwish;Shady S. Refaat;Haitham Abu-Rub;Hamid A. Toliyat;Celal F. Kumru;Farook Mustafa;Ayman H. El-Hag;Graeme Coapes;Sayed Mohammad Kameli
Publication Year: 2024,Page(s):1711 - 1720
Inspection of high voltage (HV) devices using ultrahigh frequency (UHF) sensors has been predominantly employed for partial discharge (PD) detection and classification. This work reports implementing and testing a coplanar waveguide (CPW)-fed annular monopole antenna for PD detection. The 3-D Maxwell solver of COMSOL multiphysics is used in this article to optimize the antenna parameters and impro...Show More
Novel Antenna for Partial Discharge Detection and Classification: A Convolutional Neural Network-Based Deep Learning Approach
Ahmad Darwish;Shady S. Refaat;Haitham Abu-Rub;Hamid A. Toliyat;Celal F. Kumru;Farook Mustafa;Ayman H. El-Hag;Graeme Coapes;Sayed Mohammad Kameli
Year: 2024 | Volume: 31 | Issue: 4
Partial Discharge Inception in Ceramic Substrates Embedded in Silicone Liquid, Silicone Gel, and Mineral Oil at Fast Voltage Rise and Sinusoidal Voltage
Ivan Semenov;Torstein Grav Aakre;Ingrid Gunheim Folkestad;Ingrid Smisethjell;Kaveh Niayesh;Lars E. Lundgaard
Publication Year: 2024,Page(s):1721 - 1728
This article summarizes experiments that were carried out on insulating ceramic substrates and a needle-plane arrangement with the purpose of characterizing the inception of partial discharges (PDs) in the insulation of high-voltage semiconductors. PD measurement results obtained on substrates are correlated with the high-field preinception currents measured in a needle-plane electrode arrangement...Show More
Partial Discharge Characterization in a Defect Subjected to HVDC Cable Operating Conditions
A. Imburgia;G. Rizzo;G. Ala;T. J. Å. Hammarström;Y. V. Serdyuk;A. Di Fatta;P. Romano
Publication Year: 2024,Page(s):1729 - 1737
In this work, the role of the electric conductivity on the variations in the PD phenomenon in XLPE insulation under dc stress is investigated and demonstrated. To enable this investigation, a new experimental setup simulating the insulating layer of a cable with an embedded air void defect and subjected to a dc stress and temperature has been proposed. The setup consists of two flat specimens conn...Show More
Surface Functionalization and Humidity on Charge Transport in PP/TiO₂ and PP/MgO Nanocomposites
Publication Year: 2024,Page(s):1738 - 1747
Cited by: Papers (2)
This study investigates the influence of polar silane coupling agents (SCAs) on charge transport in polypropylene (PP) nanocomposites containing magnesium oxide (MgO) and titanium dioxide (TiO2) nanoparticles in the presence of water molecules. Surface functionalization results in reduced charge accumulation and electrical conductivity compared with unmodified nanocomposites. Under vacuum-dried co...Show More
Effect of Functional Grafting Modification on Dielectric Properties of Polypropylene Insulation—Part 1: Frequency Domain Spectroscopy
Publication Year: 2024,Page(s):1748 - 1755
Cited by: Papers (1)
This series of papers investigates the effect of functional grafting modification on the dielectric properties of polypropylene (PP) insulation, of which this article focuses on the frequency domain spectroscopy (FDS) characteristics varying with temperature. The Fourier transform infrared spectroscopy (FT-IR) confirms the successful grafting of functional monomers on PP. The oxidative induction t...Show More
Effect of Functional Grafting Modification on Dielectric Properties of Polypropylene Insulation—Part II: Space Charge and DC Breakdown
Publication Year: 2024,Page(s):1756 - 1763
Cited by: Papers (1)
This article investigates the effect of antioxidant grafting on the electrical properties of polypropylene (PP) insulation for HVDC cables. The dc conductivity, space charge distribution, and breakdown characteristics of grafted modified PP are tested, and the results are compared with the neat PP. The experimental results indicate that grafted PP with antioxidants containing functional groups can...Show More
Effect of High-Energy Electron Irradiation on the Microstructure and Properties of Polyetherimide
Yu Feng;Puzhen Wang;Ziyuan He;Dong Yue;Jie Sheng;Qingguo Chi;Zhijie Yang
Publication Year: 2024,Page(s):1764 - 1771
High-energy electron irradiation is well-known for causing the degradation of the performance of spacecraft materials such as polyetherimide (PEI). In this article, the effect of high-energy electron irradiation on the structure and properties of PEI samples was studied which is produced by linear accelerator. Electron beam energies of 5, 10, 15, and 20 MeV were used. The results show that the car...Show More
Surface Defect Detection of GIS Aramid Insulation Pull Rod via Photon Counting
Hanhua Luo;Xianhao Fan;Fangwei Liang;Jun Hu;Bingyue Yan;Tengfei Li;Jinliang He;Chuanyang Li
Publication Year: 2024,Page(s):1772 - 1777
Cited by: Papers (1)
The flashover and breakdown faults induced by surface defects of aramid insulation pull rods (AIPRs) seriously threaten the safe operation of high-voltage gas-insulated switchgear (GIS). To accurately detect the surface defects of AIPRs, this article proposes a high-sensitivity detection method based on the photon counting (PC) technique. The PC characteristics of AIPR samples under different volt...Show More
Distributed Optical Fiber Detection Based on BOTDR for Buffer Layer Defects of High-Voltage XLPE Cable With Corrugated Aluminum Sheath
Yanting Cheng;Yanpeng Hao;Wanxing Tian;Peng Zhao;Haotian Tan;Qishun Li;Licheng Li
Publication Year: 2024,Page(s):1778 - 1787
Cited by: Papers (1)
In recent years, buffer layer defects have occurred in high-voltage (HV) crosslinked polyethylene (XLPE) cable frequently, which affects its safe and stable operation, while there are no effective detection methods yet. In this article, a 110 kV cable sample was prepared, embedded with single-mode optical fiber. Meanwhile, a distributed optical fiber detection system for buffer layer defects based...Show More
Effects of Particle Dispersion on EL Inception and Extinction Fields of TiO2/Epoxy Nanocomposites
Motoshi Hirai;Muneaki Kurimoto;Kazuyuki Tohyama;Toru Sawada;Shigeyoshi Yoshida;Takahiro Umemoto;Hirotaka Muto
Publication Year: 2024,Page(s):1788 - 1796
It has been revealed that the ac breakdown strength of TiO2/epoxy nanocomposites, with good particle dispersion, is higher than that of unfilled epoxy resin. Here, the electroluminescence (EL) inception and extinction fields of TiO2/epoxy nanocomposites with varying particle dispersion states were examined to explain the mechanism underlying the breakdown strength enhancement. The findings reveale...Show More
Terminal Chlorine Affected the Short-Term Electrical Properties of Epoxy Resin Materials
Publication Year: 2024,Page(s):1797 - 1804
Epoxy resin insulating materials are prone to charge accumulation under the high voltage and high temperature stress, which can distort the electric field distribution and eventually lead to insulation failure. Appropriately increasing the electrical conductivity of epoxy resin materials could effectively accelerate the dissipation of accumulated charges and may thus provide a potential method to ...Show More
Enhanced Thermal and Mechanical Performance in Insulated Aramid/Functionalized Graphene Composite
Xiaozhou Fan;Wenqi Zhang;Haoyu Wang;Changyu Li;Xiang Yu;Sidi Fan;Fangcheng Lv
Publication Year: 2024,Page(s):1805 - 1814
Poly-(meta-phenylene isophthalamide) (PMIA) is a high-performance polymer with excellent insulation and thermal stability, making it an ideal material for use in next-generation electric and electronic devices. However, its low thermal conductivity limits its further applications. In this work, functional graphene with high thermal conductivity and potential insulation properties is introduced int...Show More
Impact of Defect Structures on Interfacial and Insulation Properties in Epoxy-Impregnated Aramid Paper
Publication Year: 2024,Page(s):1815 - 1822
Cited by: Papers (2)
This study investigates the impact of interface defects on the electrical performance of epoxy-impregnated aramid papers (EAPs). Various composites with different degrees of defects were prepared and analyzed for their structural, mechanical, partial discharge, and insulation performance. The results demonstrate the widespread presence of void defects in the composites, negatively affecting paper ...Show More
Design of High-Temperature Packaging Insulation for Power Modules Using Grafted Nanostructured Silicone Elastomer Composites
Qilong Wang;Xiangrong Chen;Junye Li;Ashish Paramane;Xiaofan Huang;Na Ren
Publication Year: 2024,Page(s):1823 - 1831
Cited by: Papers (1)
Developing high-temperature and high-voltage SiC power modules requires packaging insulation with better thermal stability and electrical properties at high temperatures. This work studied the thermal and electrical properties of the proposed grafted silicone elastomer (SE) nanocomposites, and the electrical performance of the two packaging module prototypes (plane-plane and point-plane electrodes...Show More
Aging-Resistant Breakdown Performance of Polypropylene Nanodielectrics
Aizat Azmi;Kwan Yiew Lau;Chee Wei Tan;Razman Ayop;Kuan Yong Ching;Alun Vaughan
Publication Year: 2024,Page(s):1832 - 1839
Cited by: Papers (1)
The current work discusses the effects of vacuum and oxidative aging at $110~^{\circ }$ C on the direct current breakdown performance of pure polypropylene (PP) and PP nanodielectrics having 1 wt%, 2 wt%, and 5 wt% of magnesium aluminate, calcium carbonate, and surface-treated calcium carbonate nanoparticles. The results show that aging pure PP under vacuum changes the structure of the material, ...Show More
Experimental and Theoretical Study of the Interaction Between SF₆/N₂ and EPDM: A Comparative Study With SF₆
Shuangshuang Tian;Benli Liu;Weihao Liu;Guangyu Deng;Guochong Li;Xiaoxing Zhang;Hui Chen
Publication Year: 2024,Page(s):1840 - 1848
Mixing nitrogen (N2) into sulfur hexafluoride (SF6) is considered a beneficial measure to reduce the consumption of SF6. Minimal interaction and airtightness are key factors in maintaining the long-term stable operation of the equipment. To provide theoretical support for the application of ethylene propylene diene monomer (EPDM) in SF6/N2 insulated equipment, the interaction mechanism and permeab...Show More
Influence of Al2O3 Contents on the Progression of Electrical Tree in Polyetherimide Films
Publication Year: 2024,Page(s):1849 - 1855
Dielectric nanocomposites are considered to be the most promising energy storage material due to their fast charging and discharging capabilities and high-power density. Pre-breakdown degradation mechanisms for dielectric nanocomposites have become one of the current research hotspots to further improve the energy storage performance. Herein, the Weismann–Zeller (WZ) model is used to simulate the ...Show More
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