High Voltage最新文献_第4页

Image Restoration Algorithm and Propagation Mechanism of Partial Discharge Streamer in Oil–Pressboard Insulation Needle–Plate Electrode 油压板绝缘针板电极局部放电流光图像恢复算法及传播机理

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-06-08 DOI: 10.1049/hve2.70213

Luyao Liu, Hongshun Liu, Ali Mohammed Ali Abdo, Hongbin Wu, Pengfei Lu, Qingquan Li

{"title":"Image Restoration Algorithm and Propagation Mechanism of Partial Discharge Streamer in Oil–Pressboard Insulation Needle–Plate Electrode","authors":"Luyao Liu, Hongshun Liu, Ali Mohammed Ali Abdo, Hongbin Wu, Pengfei Lu, Qingquan Li","doi":"10.1049/hve2.70213","DOIUrl":"https://doi.org/10.1049/hve2.70213","url":null,"abstract":"Oil–pressboard system is the main insulation form of oil-immersed transformers, which is prone to partial discharge (PD) and subsequent faults due to contamination or moisture ingress. To investigate the evolutionary characteristics of PD streamers under varying voltages and insulation dimensions, streamer images were captured using a high-speed camera system. An image restoration algorithm was proposed, which integrates the Retinex theory with bilateral filtering and k-dimensional tree (KD-tree)-based methods. This algorithm allows for the enhancement of image contrast while ensuring that edge details are preserved and fragmented streamer channels are reconnected. By varying the applied voltage, needle–plate gap length and pressboard thickness, patterns in streamer area and the number of bifurcations were analysed. These variations were microscopically explained in terms of electric field distortion and the dielectric matching between oil and pressboard insulation. It was found that larger streamer areas are produced by higher voltages and longer needle–plate gaps. Additionally, under elevated voltages or prolonged energisation, multiple streamer patterns are generated due to the presence of photoionisation and bubble formation. Furthermore, an increased number of bifurcations is observed with longer gaps and more uniform dielectric matching between oil and pressboard. The results obtained here enrich the evolution mechanism of PD and provide theoretical guidance for the dielectric matching of transformer oil and pressboard.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"784-796"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Moisture on Electrical Properties of Fibre-Reinforced Polymer Core Rod in the Decay-Like Degraded Composite Insulator 水分对类衰减降解复合绝缘子纤维增强聚合物芯棒电性能的影响

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-03-31 DOI: 10.1049/hve2.70191

Shuqi Liu, Chao Wu, Zhou Zuo, Ying Zhou, Hangyue Mei, Qian Wang, Xin Lyu, Wenhui Li, Xidong Liang

{"title":"Influence of Moisture on Electrical Properties of Fibre-Reinforced Polymer Core Rod in the Decay-Like Degraded Composite Insulator","authors":"Shuqi Liu, Chao Wu, Zhou Zuo, Ying Zhou, Hangyue Mei, Qian Wang, Xin Lyu, Wenhui Li, Xidong Liang","doi":"10.1049/hve2.70191","DOIUrl":"10.1049/hve2.70191","url":null,"abstract":"Abnormal heating due to decay-like degradation in composite insulators is influenced by environmental moisture, but the relationship between the internal degradation status of the core rods and their electrical properties under varying humidity conditions remains poorly understood. In this work, the decay-like degraded fibre-reinforced polymer (FRP) core rod was dissected into short samples for light transmission analysis, and their moisture absorption performances were tested. Electrical parameters under both DC and AC voltages were measured under different hygroscopic conditions. It was observed that the dielectric loss of severely degraded samples increased dramatically after moisture absorption, and a remarkable correlation between degradation area and electrical parameters was found. Based upon the axial variation of electrical properties along the rod, the branched-structure theory was proposed to interpret the sharp changes in electrical properties within the transitional region. Furthermore, Fourier transform infrared spectroscopy (FTIR), micro computed tomography (micro-CT) and scanning electron microscope (SEM) were employed to investigate the changes in chemical composition and microstructures responsible for the enhanced moisture absorption capabilities within severely degraded regions. This study explored the influence of moisture on the degraded core rod and its impacts on electrical properties, which laid the foundation for future research into the abnormal heating mechanism.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"838-847"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147586140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion Failure Analysis of Contactor Type Electrical Connection Components Used in Converter Valve Side Bushings 换流阀侧衬套中接触器型电气连接元件腐蚀失效分析

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-03-30 DOI: 10.1049/hve2.70179

Qingyu Wang, Tao Xie, Shoufeng Jin, Huidong Tian, Xiaoyu Zhou, Shifeng Shi, Kanghang He, Juzhen Wu, Peng Liu, Zongren Peng

{"title":"Corrosion Failure Analysis of Contactor Type Electrical Connection Components Used in Converter Valve Side Bushings","authors":"Qingyu Wang, Tao Xie, Shoufeng Jin, Huidong Tian, Xiaoyu Zhou, Shifeng Shi, Kanghang He, Juzhen Wu, Peng Liu, Zongren Peng","doi":"10.1049/hve2.70179","DOIUrl":"10.1049/hve2.70179","url":null,"abstract":"As a commonly used bushing current-carrying structure in recent years, contactor-type electrical connection parts operate in a complex environment of electric, thermal and chemical corrosion for extended periods. With the increase of ultra-high voltage (UHV) transmission capacity, its operating environment faces more stringent challenges, and the stability of their operation is directly linked to the reliability of the UHV transformer equipment. This paper aims to investigate the mechanism behind contact failure by developing a contactor deterioration test platform in oil to study the deterioration and corrosion process of strap contactor in oil under 120°C environment. The study found that the sulphur element content on the exposed copper surface of the strap contactor was elevated from 0% to 2.05% in 28 days, and there was an obvious latency period for the sulphide corrosive reaction with the surface of the strap contactor. The electrical contact resistance of the strap contactor after the corrosion reaction was elevated from 110 to 251 μΩ, which became overheating failure and contact failure of electrical connection components of bushings.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"705-714"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147586143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mineral Oil-Induced Ageing Characteristics of Aluminium Nitride-Doped Silicone Rubber Nanocomposites 掺氮铝硅橡胶纳米复合材料的矿物油老化特性

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-04-25 DOI: 10.1049/hve2.70190

Dhanunjaya Naidu Vangapandu, Palash Mishra, Pawel Rozga, R. Sarathi, Mithun Mondal, M. Tariq Nazir, Chillu Naresh

{"title":"Mineral Oil-Induced Ageing Characteristics of Aluminium Nitride-Doped Silicone Rubber Nanocomposites","authors":"Dhanunjaya Naidu Vangapandu, Palash Mishra, Pawel Rozga, R. Sarathi, Mithun Mondal, M. Tariq Nazir, Chillu Naresh","doi":"10.1049/hve2.70190","DOIUrl":"10.1049/hve2.70190","url":null,"abstract":"Room temperature vulcanised (RTV) silicone rubber, commonly used as an external insulating coating on ceramic bushings of oil-immersed transformers, undergoes significant degradation when exposed to mineral oil under harsh environmental conditions. Therefore, the present study investigates the ageing characteristics of aluminium nitride (AlN)-doped silicone rubber nanocomposites subjected to mineral oil ageing at 80°C for 200 h. Nanocomposites with 0, 1 wt.%, 3 wt.% and 5 wt.% AlN were fabricated. Post-ageing, Fourier transform infrared spectroscopy (FTIR) confirmed the scission of side chains and main backbone chains in the silicone rubber matrix. This degradation resulted in decreased surface hydrophobicity and shore hardness, along with increased surface roughness, as evidenced by contact angle measurements, shore hardness testing and 3-D microscopy, respectively. Surface potential measurements indicated reduced surface charge dissipation capability in the aged specimens. Additionally, inclined plane tracking and erosion (IPT-E) tests performed according to IEC 60587 revealed a significant decline in tracking and erosion resistance. Thermogravimetric analysis and IR thermography showed reduced thermal stability and increased heat accumulation in the aged samples. Overall, the 3 wt.% of AlN-doped nanocomposite demonstrated superior resistance to degradation, suggesting its potential for improved performance under mineral oil ageing conditions for transformer bushing applications.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"811-822"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-01-31 DOI: 10.1049/hve2.70135

Mi Zhou, Xiaoyu Lei, Li Cai, Jianguo Wang, Weihan Zhao, Jinxin Cao, Denglei Duan, Maorong Geng, Yadong Fan, Jianping Wang

{"title":"Correlated Transient Response of Buried Cables and Lightning Channel Radiation of Return Strokes of Five Rocket-Triggered Lightning Strikes","authors":"Mi Zhou, Xiaoyu Lei, Li Cai, Jianguo Wang, Weihan Zhao, Jinxin Cao, Denglei Duan, Maorong Geng, Yadong Fan, Jianping Wang","doi":"10.1049/hve2.70135","DOIUrl":"10.1049/hve2.70135","url":null,"abstract":"Data from five rocket-triggered lightning flashes are adopted to analyse the correlated transient response of buried cables and lightning channel radiations. These five flashes have the same termination point that is right above the buried cables and involve a total of 32 return strokes. Research objects here include armoured four-core cables with two layout forms: a 40-m cable arranged in an L-line (termed as L-shaped cable) and 20-m cable arranged in a straight line (termed as straight cable), each with a diameter of 1.08 cm and buried underground at a depth of 70 cm. Results show that voltage of both cables exhibits a double-peak signature, with the first pulse peaking at a higher value, 227–1023 V. The layout form has a remarkable influence on the rise time and half-peak width of cable voltages. The averaged voltage rise time for the straight cable is 2.4 μs, and the half-peak width is 2.4–5.8 μs, whereas those for the L-shaped cable are smaller, being 0.8 μs and 1.2–1.8 μs for the former and latter, respectively. Moreover, it appears that the L-shaped layout form can, to some extent, reduce the amplitude of cable voltage. Furthermore, parametric correlation analyses show that the peak voltage of buried cables is approximately directly proportional to the peak time derivative of the magnetic field documented at a distance of 75 m from the lightning channel, whereas the peak channel luminosity, also measured at a distance of 75 m from the lightning channel, is directly proportional to the square of peak cable voltage.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"692-704"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating Dynamic Characteristics of Cavitation in Insulating Oil Microgaps Under Vibration: Theoretical Analysis and Experimental Observation 振动作用下绝缘油微间隙空化动态特性研究：理论分析与实验观察

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-01-28 DOI: 10.1049/hve2.70147

Jiajun Yang, Tao Zhao, Yunpeng Liu

{"title":"Investigating Dynamic Characteristics of Cavitation in Insulating Oil Microgaps Under Vibration: Theoretical Analysis and Experimental Observation","authors":"Jiajun Yang, Tao Zhao, Yunpeng Liu","doi":"10.1049/hve2.70147","DOIUrl":"10.1049/hve2.70147","url":null,"abstract":"The internal pressure fluctuations caused by vibration in oil-immersed electrical equipment can initiate bubbles within narrow oil gaps, reducing the electrical strength of equipment and giving rise to the problem of abnormal gas production in oil-immersed equipment. This study mainly investigates the dynamic characteristics of cavitation in insulating oil microgaps under varying vibration conditions. A microgap model with vibration is constructed based on fluid mechanics, the fluid pressure within the microgap is derived, and the maximum negative pressures caused by vibration under varying vibration conditions and geometric structures of the insulating oil microgap are analysed. Subsequently, combined with the theories of bubble dynamics, the dynamic processes of the bubble within the microgap during a single vibration cycle under varying vibration conditions are analysed, and the influence of vibration intensity and frequency on the dynamic characteristics of the bubble is also discussed. Finally, the bubbling phenomenon and cavitation processes within the microgap under varying vibration conditions are observed and analysed using an experimental platform of microgap vibration. A better understanding of the development process of cavitation within the microgap structure under vibration is achieved. Furthermore, this study also provides theoretical support for the insulation risk assessment of the microgap structure under vibration and the design optimisation of the internal structure of oil-immersed electrical equipment.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"771-783"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development 800kv快速断路器：机械耦合建模、缓冲器设计与开发

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-04-15 DOI: 10.1049/hve2.70193

Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li

{"title":"800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development","authors":"Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li","doi":"10.1049/hve2.70193","DOIUrl":"10.1049/hve2.70193","url":null,"abstract":"The 800 kV fast circuit breaker (CB) used in ultra-high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects. However, fast CBs can generate significant impact and vibration during fast operation. It may threaten the mechanical life and reliability of the CB. This article proposes a modelling method for the fast CB, which couples the multi-physical fields of the Thomson coil release system (TCRS) and the hydraulic system. It can describe the entire process of the opening action. Based on the simulation model, the buffering processes of the TCRS and the hydraulic system are calculated and designed, respectively. A throttle valve provides hydraulic buffering force within the TCRS oil circuit. The stepped buffer column, combining cylindrical and conical buffer structures, balances the buffer force and achieves steady deceleration. Based on these design parameters, an 800 kV fast CB is successfully developed, validating the accuracy of the simulation calculations. Results indicate that the TCRS tripping time is 2.62 ms, the CB breaking time is 7.92 ms, and the mechanical life of the CB is 10,000 times.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"715-724"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147695521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative Structure–Property Relationship for High Flash Point of Ester Oil Molecules and Its Experimental Verification 酯类油分子高闪点的定量构效关系及其实验验证

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-06-06 DOI: 10.1049/hve2.70208

Jingwen Zhang, Jian Hao, Per-Olof Åstrand, Hongwei Li, Ruijin Liao

{"title":"Quantitative Structure–Property Relationship for High Flash Point of Ester Oil Molecules and Its Experimental Verification","authors":"Jingwen Zhang, Jian Hao, Per-Olof Åstrand, Hongwei Li, Ruijin Liao","doi":"10.1049/hve2.70208","DOIUrl":"https://doi.org/10.1049/hve2.70208","url":null,"abstract":"With the increasing voltage of ester oil-filled transformers and their application in offshore wind power, developing high-performance, fire-resistant esters is crucial for enhancing transformer safety. Flash point, a key indicator of fire-resistant performance for esters, is directly related to the molecular structures. This paper employs quantitative structure–properties relationship analysis to study the correlation between molecular structures and flash points of esters. Firstly, a database was constructed, comprising flash points and molecular descriptors of esters. Four molecular descriptors were selected using the correlation coefficients. Secondly, the predictive performance of models utilising linear regression, support vector machine regression and backpropagation neural network methods was compared. Finally, the model was used to assist in screening esters with high flash points and testing their performance as insulating esters. The results indicate that the neural network model with the tanh activation function provided the best prediction for the flash point of esters, achieving a coefficient of determination (R2) of 0.988 and a root mean squared error of 10.81°C for the test set. The predicted and measured flash points of the designed esters indicate that T2-C18:1 and T3-C18:1 achieved high flash points (> 250°C) and high breakdown voltages. This research study offers a novel approach to developing high-performance esters.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"751-760"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70208","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148358047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Efficient Method for Transient Temperature Calculation in Oil Natural Transformers Based on the Time-Space Proper Orthogonal Decomposition 基于时-空固有正交分解的油自然变压器瞬态温度计算方法

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-01-31 DOI: 10.1049/hve2.70146

Haijuan Lan, Wenhu Tang, Zeyi Zhang, Jiahao Gong, Xiongwen Xu, Goran Strbac

{"title":"An Efficient Method for Transient Temperature Calculation in Oil Natural Transformers Based on the Time-Space Proper Orthogonal Decomposition","authors":"Haijuan Lan, Wenhu Tang, Zeyi Zhang, Jiahao Gong, Xiongwen Xu, Goran Strbac","doi":"10.1049/hve2.70146","DOIUrl":"10.1049/hve2.70146","url":null,"abstract":"A reduced-order model (ROM) for the temperature field based on time-space proper orthogonal decomposition (POD) is presented to improve the computational efficiency of transient temperature rise in oil-immersed power transformers with a complete oil natural convection cooling loop. This approach utilises data obtained from a full-order simulation model operating under the transformer's rated conditions as input. This paper first examines the reduction characteristics of the proper orthogonal decomposition (POD) method and subsequently introduces the time-space POD framework. The time POD method is used to select a robust snapshot set, which is subsequently integrated with space POD and Galerkin methods to establish a rapid computation model for the transient temperature field prediction of the transformer under various loading conditions. Compared to traditional finite element models, this method can generate a highly accurate computational model with a small number of snapshot samples, significantly reducing the computation time required. The presented examples demonstrate the exceptional computational accuracy and efficiency of this method. Therefore, this approach offers a workable solution for the digital twin application of transformer temperature assessment by attaining second-level computing efficiency for the entire transformer temperature field.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"656-667"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Residual Life Assessment of Oil-Immersed Insulating Paper by FTIR Feature Interpretability Evolution 基于FTIR特征可解释性演化的油浸绝缘纸剩余寿命评价

IF 5.7 2区工程技术

High Voltage Pub Date : 2026-07-02 Epub Date: 2026-03-30 DOI: 10.1049/hve2.70178

Guangyi Liu, Yanan Liu, Chen Zhang, Jian Li, Zhengyong Huang, Feipeng Wang, Huaqiang Li, Jinghui Gao, Lisheng Zhong

{"title":"Residual Life Assessment of Oil-Immersed Insulating Paper by FTIR Feature Interpretability Evolution","authors":"Guangyi Liu, Yanan Liu, Chen Zhang, Jian Li, Zhengyong Huang, Feipeng Wang, Huaqiang Li, Jinghui Gao, Lisheng Zhong","doi":"10.1049/hve2.70178","DOIUrl":"10.1049/hve2.70178","url":null,"abstract":"The ageing of insulating paper escalates the peril of insulation failure in oil-impregnated-paper power equipment. Consequently, the real-time monitoring and non-destructive assessment of insulating paper condition assume paramount significance. This paper proposes a residual life prediction method of insulating paper based on Fourier transform infrared (FTIR) spectroscopy. The windowed wave feature (WWF) extraction method is designed and the WWF-bagging model is established to assess the tensile strength (TS) of insulating paper. Combined with the shapley additive explanations (SHAP) algorithm, we propose that kurtosis and skewness of infrared spectrum are the pivotal parameters for insulating paper life prediction. Additionally, a consistent correlation is observed between the infrared spectral band of aldehyde band and the ageing time. The experimental results evince that the proposed model surpasses classical methods evaluating the residual life of ageing insulating paper.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 3","pages":"761-770"},"PeriodicalIF":5.7,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147586138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0