IEEE Transactions on Dielectrics and Electrical Insulation最新文献

{"title":"IEEE Dielectrics and Electrical Insulation Society Information","authors":"","doi":"10.1109/TDEI.2024.3497458","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3497458","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"C3-C3"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811662","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859265","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":"Editorial Condition Monitoring and Diagnostics of Electrical Insulation","authors":"Marek Florkowski;Cheng Pan","doi":"10.1109/TDEI.2024.3496012","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3496012","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"2859-2859"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858968","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":"IEEE Transactions on Dielectrics and Electrical Insulation Publication Information","authors":"","doi":"10.1109/TDEI.2024.3497460","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3497460","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"C2-C2"},"PeriodicalIF":2.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10811102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858998","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":"Pulse Charging–Discharging Behavior and Reliability Analysis of Antiferroelectric MLCCs","authors":"Deke Liu;Yingxuan Li;Qingshan Zhu;Gang Wang;Zemin Yu;Chenchen He;Jian Zhou;Ran Xu","doi":"10.1109/TDEI.2024.3519075","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3519075","url":null,"abstract":"In this research, the pulse charging-discharging behavior and reliability of antiferroelectric multilayer ceramic capacitors (AFE MLCCs) were investigated. The results revealed that as the voltage stress increased gradually from 900 to 1400 V, the characteristic lifetime of AFE MLCCs exhibited a monotonically decreasing trend, and this downward trend conforms to an inverse power law. However, experimental findings reveal that the discharge lifetime of AFE MLCCs is longer at higher temperatures. Moreover, the relationship between lifetime and temperature stress no longer follows the Arrhenius accelerated model, which may be attributed to the different phase transition behaviors of AFE MLCC at elevated temperatures. By observing the results at high temperatures, it was found that the polarization of AFE MLCC significantly decreased, leading to a reduction in its stored energy density and discharge current. Furthermore, high temperatures also decreased the strain caused by structural transitions in AFE MLCC, indicating a more complex influence of temperature on the phase transition behavior of AFE materials. Finally, microfailures of AFE MLCC were observed, and the failure mechanism was analyzed, categorizing it into three types. In addition, it was noted that due to the phase transition behavior of AFE materials and the inherent complex internal structure of MLCC, the breakdown failure of AFE MLCC is a complex mechanical-electrical–thermal coupling phenomenon, which needs to be a key point for future practical applications of AFE MLCCs.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"940-949"},"PeriodicalIF":2.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761398","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":"A Two-Step Modification Method for Estimating the Aging Status of Insulation Paper After Oil-Replacement Based on the Methanol","authors":"Qingguo Chen;Wei Sun;Song Cheng;Liang Zhang;Chunpeng Li","doi":"10.1109/TDEI.2024.3515922","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3515922","url":null,"abstract":"Replace aged oil (RAO) can retard the aging development of transformer insulation by regularly filtering out the harmful substances in oil; however, the RAO itself may affect the estimation accuracy of the aging status of paper insulation based on chemical characteristic marker methods, such as carbon oxides, furfural, and methanol (MeOH). In this article, accelerating thermal aging experiments are carried out, and the influence of RAO on MeOH concentration in insulating oil and the estimation degree of polymerization (DP) of paper insulation is investigated. The results indicate that the current estimation methods are unsuitable for RAO based on the MeOH in oil. Furthermore, the MeOH correction factor (CF) and DP CF are established as power-series expansion, and a two-step modification method that considers both variations of MeOH in oil and DP of paper insulation is proposed for modifying the estimation errors by RAO. Eventually, the verification experiment is carried out to verify the estimation accuracy of the proposed method, and the results indicate that the range of average relative estimation errors is reduced to 1.8%~3.9%. The accuracy of aging estimation is improved and the proposed method has good applicability.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1129-1137"},"PeriodicalIF":2.9,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783308","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":"Performance Evolution and Aging Mechanism of XLPE Insulation for HVdc Cables After Different Accelerated Aging","authors":"Ying Liu;Jiazhu Yu;Meng Ma","doi":"10.1109/TDEI.2024.3517568","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3517568","url":null,"abstract":"In this article, the ±200-kV crosslinked polyethylene (XLPE) cable used in Zhoushan flexible dc transmission project is targeted. Three accelerated aging schemes of continuous electrical (CE) aging, intermittent electrical (IE) aging, and electrothermal (TE) combined aging are designed, and the simulation test platform is built accordingly. The lamellar samples, cut from the XLPE insulation of the spare cable, are aged for predetermined durations under different design stresses. The samples are tested for oxidation induction time (OIT), Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), thermal stimulation current (TSC), space charge, dc conductivity, and dc dielectric strength, and the variation of various performance parameters are summarized. By analyzing the correspondence between the variation trend of each parameter and the aging process, the feature parameters that can effectively characterize dc XLPE insulation performance are determined, and the aging mechanism of dc insulation is explored. The results show that both electrical stress and thermal stress are important factors causing insulation aging, and their combined effect will significantly accelerate insulation deterioration. In addition, compared with the CE stress, the rise and fall of dc voltage will also aggravate the aging to a certain extent. Therefore, after the same time of continuous electrical stress, IE stress, and TE combined stress, the aging degree of XLPE samples increases in turn.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1074-1083"},"PeriodicalIF":2.9,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783184","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":"Experiment and Simulation of Temperature Effects on Partial Discharge and Electrical Treeing in XLPE Insulation","authors":"Yan Li;Yu Shan;Guancheng Zhen;Lingyuan Lan;Yunpeng Liu;Xiangrui Zeng;Bowen Liu","doi":"10.1109/TDEI.2024.3518484","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3518484","url":null,"abstract":"Crosslinked polyethylene (XLPE) is a crucial insulating material for cables. Partial discharge (PD) and electrical treeing are key parameters for characterizing the state of XLPE. Studies have found that the temperature affects the PD and electrical treeing of XLPE. Yet, the theoretical analysis of this phenomenon is not sufficiently elaborated in-depth. To address this, this article constructs a testing platform for XLPE PD and electrical treeing, observing the development patterns of PD and electrical treeing at <inline-formula> <tex-math>$50~^{circ }$ </tex-math></inline-formula>C, <inline-formula> <tex-math>$70~^{circ }$ </tex-math></inline-formula>C, and <inline-formula> <tex-math>$90~^{circ }$ </tex-math></inline-formula>C. Experiments indicate that rising temperatures result in lower inception voltages for PDs, more frequent discharges, faster electrical tree growth, and a reduction in branching. To explore the theoretical mechanism behind the impact of temperature, this article first calculates the conductivity of cavities under different temperature conditions on a microscale using a fluid simulation model and measures the dielectric constant of XLPE at various temperatures. Then, combining a macroscale finite element simulation model, the effect of temperature on the frequency of PD occurrences is analyzed through multiscale simulation analysis. Subsequently, considering the effects of dielectric constant, critical breakdown strength, and dielectric loss tan<inline-formula> <tex-math>$delta $ </tex-math></inline-formula> at different temperatures, the phase field model is used to depict the growth of electrical trees under various temperatures. Ultimately, the simulation results show that an increase in temperature leads to a lower discharge field strength, an increase in the number of PDs, a faster growth rate of electrical trees, and a reduction in branching, which corresponds to and explains the experimental results. Temperature dependency of dielectric constant and critical breakdown strength are the key factors for the PD and electrical tree development patterns under different temperatures separately.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"674-683"},"PeriodicalIF":2.9,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761397","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":"DC Arc Flash Modeling and Analysis of Photovoltaic Arrays Using Magnetohydrodynamic Framework","authors":"Mohammed M. Al-Hassan Salim;Mohammad AlMuhaini","doi":"10.1109/TDEI.2024.3518482","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3518482","url":null,"abstract":"Renewable energy systems remain one of the energy industry’s fastest-expanding sectors. Considering the recent global expansion of solar photovoltaic (PV) arrays and their corresponding dc installations, the risk of dc arc flashes on PV systems has raised safety concerns. It is necessary to develop realistic and precise criteria to evaluate arc flash levels in dc equipment, combining several solar PV circuits with considerable available fault currents. In contrast to the arc flash of ac systems, few research studies and industry standards have quantified the risks associated with PV systems, particularly with dc installations. This work is an attempt to contribute to standardized model development. The physical aspects of arc flash in PV systems are modeled, and then magnetohydrodynamics (MHDs) are utilized to perform the simulation. The MHD simulation was performed through ANSYS software, ANSYS Fluent, for fluid mechanic equations in conjunction with ANSYS Maxwell for electromagnetic equations. The empirical model developed by the Electric Power Research Institute (EPRI) for incident energy calculation on PV arrays and their published test results are compared to the resultant MHD simulation results and to certain other available industry models.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"641-648"},"PeriodicalIF":2.9,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761480","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":"Visualization of Local Heating in Conductive Viscous Fluids Exposed to Repetitive High-Power Electrical Pulses","authors":"Bingyu Yan;Kenshi Kajiwara;Sunao Katsuki","doi":"10.1109/TDEI.2024.3516702","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3516702","url":null,"abstract":"This study investigates the flow dynamics and temperature rise of conductive viscous fluids under pulsed electric fields (PEFs) between parallel electrodes. The aim is to enhance understanding of thermofluid dynamic phenomena, which is critical to industrial applications utilizing PEF sterilization technology. Time-resolved Schlieren and interferogram techniques are employed to visualize flow states and temperature distributions between the electrodes. Specifically, this study examines both steady states during repetitive PEF exposures and transient behaviors following a single PEF exposure under various flow conditions. In laminar flow, as low-velocity regions absorb more energy from PEFs, the temperature near the electrodes increases more significantly compared to the central region of the flow. Higher viscosity results in a greater mean flow velocity, and longer electrodes amplify the local temperature rise. By contrast, turbulent flow suppresses increases in the local temperature near the electrodes due to transverse heat transfer, even with longer electrodes. Considering excessive local temperature rises near the electrodes is crucial when processing heat-sensitive liquid foods in high-flow-rate PEF pasteurization systems, particularly for large-scale processing of protein-rich and heat-sensitive high-viscosity liquids using PEF technology.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1314-1323"},"PeriodicalIF":2.9,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213587","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":"A Novel Antioxidant Addition Strategy for Synthetic Ester Insulating Oils: Phenolic Compounding","authors":"Shuang Hu;Zhuang Fu;Jiawen Zhang;Yihua Qian;Hongmei Wang","doi":"10.1109/TDEI.2024.3515912","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3515912","url":null,"abstract":"The combination of phenolic and amine additives represents a traditional approach for the co-formulation of antioxidant compounds in insulating oils. However, the introduction of amines not only induces significant alterations in the inherent characteristics of the oil but also gives rise to aging by-products that are environmentally detrimental. This study examines the aging behavior of three commonly employed phenolic antioxidants, namely, butylated hydroxytoluene (BHT), butyl hydroxyanisole (BHA), and tert-butyl hydroquinone (TBHQ), when added individually or in combination with synthetic ester insulating oil. The investigation reveals that the co-formulation of phenolic antioxidants demonstrates exceptional antioxidant efficacy within synthetic ester insulating oil. Through the oxidative stability test, it is observed that incorporating a combination of 0.3 wt% BHT and 0.1 wt% BHA into the oil maintains the dielectric dissipation factor (DDF) at 0.681%, representing a mere 0.202% increase compared to fresh oil. Furthermore, the total acid number (TAN) can be sustained at 0.01 mg<inline-formula> <tex-math>$cdot $ </tex-math></inline-formula>KOH/g, and the breakdown voltage (BDV) can be up to 78 kV. This study employs linear sweep voltammetry (LSV) and Fourier transform infrared (FT-IR) spectroscopy to analyze the behavior of antioxidants and the degradation products of aged oil samples. A preliminary investigation into the synergistic antioxidant mechanism of phenolic antioxidants in synthetic ester insulating oil is conducted, to provide a novel approach for the formulation of antioxidant compounds.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 3","pages":"1476-1483"},"PeriodicalIF":2.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205929","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}