2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)最新文献_第8页

Mechanism study and performance analysis of self-healing room temperature silicone rubber 室温自愈硅橡胶的机理研究及性能分析

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961443

Lei Peng, Fanyun Su, Junping Lin, Yingfan Zhang, Zhengyong Huang, Zhi Li, Qiang Fu

{"title":"Mechanism study and performance analysis of self-healing room temperature silicone rubber","authors":"Lei Peng, Fanyun Su, Junping Lin, Yingfan Zhang, Zhengyong Huang, Zhi Li, Qiang Fu","doi":"10.1109/ICHVE53725.2022.9961443","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961443","url":null,"abstract":"Polymer matrix composites are susceptible to multi-field compounding during processing and service, resulting in micro-damage that is difficult to discern with eyes, causing a reduction in the mechanical strength and dielectric properties of polymer composites. Therefore it is essential to prepare polymer-based composites with self-healing properties. To address the above problems, the room temperature vulcanised silicone rubber with the self-healing function is prepared using disulphide-bonded silanes as Room temperature vulcanised silicone rubber (RTV) crosslinkers. The self-healing principle of the coating was analyzed. The Fourier Transform infrared spectroscopy(FTIR), self-healing performance and Thermal Gravimetric Analyzer (TGA) of the self-healing coating containing 7.5 wt% disulphide-bonded silanes crosslinking agent were also tested. The results show that the coatings have self-healing properties and heat resistance. The FTIR indicates the presence of S-S bond in the silicone rubber. At 7.5 wt% disulphide-bonded silanes crosslinker, the coating can repair wounds with a depth of 1, 4, 7mm and the coating has a thermal decomposition temperature of 180 °C.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117292548","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 formula of ZnO varistor with optimized impulse aging performance 优化脉冲老化性能的ZnO压敏电阻配方研究

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961376

Hanchao Chen, Zhikai Wang, Xuesong Du, Shuai Wan, Zihao Liu, Wei Cao

{"title":"Research on formula of ZnO varistor with optimized impulse aging performance","authors":"Hanchao Chen, Zhikai Wang, Xuesong Du, Shuai Wan, Zihao Liu, Wei Cao","doi":"10.1109/ICHVE53725.2022.9961376","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961376","url":null,"abstract":"ZnO varistors' electrical properties directly determine the protective effect of the metal oxide arrester (MOA). For some MOAs with extremely high energy absorption requirements, damaged cases occurred due to the aging of the varistor. It is necessary to carry out research on formula optimization of $Z$n $O$ varistors to optimize the aging performance of the varistors, and try to avoid electrical performance deterioration and even collapse of the varistors under multiple impulses. Based on the basic formula of the ZnO varistor, by adjusting the doping amount of various elements, grain parameters and electrical properties of varistor pieces with different additives doping were compared. Furthermore, this paper carried out an impulse aging test on the varistor, so as to obtain the influence rule of the impulse aging performance. Based on the comparative analysis of various elements doping, the influence rule of various additives on the varistors was concluded. And the optimized doping formula can be used to prepare ZnO varistors with improved aging performance.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"1047 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116278330","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

Mechanical stability assessment of transformer winding by the synchrosqueezing S-transform 用同步挤压s变换评价变压器绕组的机械稳定性

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961429

M. B. Zhang, F. H. Wang

引用次数: 0

Transient Electric Field Analysis of GIS Basin Insulators Under Very Fast Transient Over-voltage 快速过电压作用下GIS盆形绝缘子的瞬变电场分析

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961337

Qin Yan, Xianqiang Li, Kang He, Qi Wang

引用次数: 0

Long-distance Transmission Line Monitoring Based on Brillouin Optical Time-domain Reflectometer 基于布里渊光时域反射计的长距离传输线监测

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961492

Sihan Wang, Tengjun Guo, Rongbin Shi, Jing Hu, W. Qin, Guo-ming Ma

引用次数: 1

A Series Arc Fault Protection Method Based on Time and Frequency Domain Characteristics of Current 基于电流时频域特性的串联电弧故障保护方法

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961488

Guangxu Pan, Yunxiang Cheng, Chiyu Gong, Sihua Liu, Jing Wang, Xingyu Li

引用次数: 0

Analyzing the Influence of HVDC Grounding Electrode and Pipeline Parameters on HVDC Interference 高压直流接地电极和管道参数对高压直流干扰的影响分析

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961385

Gang Liu, Qingsong Liu, Shaojie Gu, Shangmao Hu, Wei Chen, H. Cai, J. Deng

{"title":"Analyzing the Influence of HVDC Grounding Electrode and Pipeline Parameters on HVDC Interference","authors":"Gang Liu, Qingsong Liu, Shaojie Gu, Shangmao Hu, Wei Chen, H. Cai, J. Deng","doi":"10.1109/ICHVE53725.2022.9961385","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961385","url":null,"abstract":"With the large-scale construction of HVDC transmission systems, many buried pipelines suffered from HVDC interference in recent years. Existing cases have shown that the changes in the parameters of HVDC grounding electrode and pipeline have great impact on the magnitude of HVDC interference. In this paper, a calculation model of high-voltage direct current interference electric field is constructed based on the parameter information of pipelines and grounding electrodes in actual projects. The influence of the direction and quantity of discharging current from the grounding electrode, the distance between the grounding electrode and the pipeline, and the length of the pipeline on the interference parameters of buried pipelines suffered from HVDC interference were investigated and obtained. The results show that with the increase of the grounding current of the grounding electrode, the positive and negative amplitudes of the pipeline interference potential increase, and the offset value of the pipe grounding potential is positively correlated with the grounding current of the grounding electrode; with the distance between the ground electrode and the center of the pipeline decreasing, the positive and negative amplitudes of the pipeline interference voltage increase, and the length of the pipeline interfered increases; with the length of the pipeline increases, the positive and negative amplitudes of the pipeline interference potential increase, and the length of the pipeline interfered range of influence increases.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124469283","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

Harmonic Assessment on Local Power Network for BESS Connection Through Transformer Tertiary Windings BESS经变压器三次绕组连接局部电网的谐波评估

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961749

S. Shen, B. Cheng, Y. Yang, Shang Gao, O. Cwikowski, Z. Wang

{"title":"Harmonic Assessment on Local Power Network for BESS Connection Through Transformer Tertiary Windings","authors":"S. Shen, B. Cheng, Y. Yang, Shang Gao, O. Cwikowski, Z. Wang","doi":"10.1109/ICHVE53725.2022.9961749","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961749","url":null,"abstract":"With the increasing demands of the energy storage intake to facilitate Net-Zero in the power network, inoperative tertiary windings of existing supergrid transformers provide opportunities to connect Battery Energy Storage System (BESS). To accurately assess the impact of BESS connection on local system power quality, e.g., harmonic impact, it is necessary to conduct transient analyses with accurate modelling of the transformer. This paper aims to perform the harmonic assessment for such BESS connection application in a UK 400 kV substation and to improve the transformer transient modelling. A representative local 400 kV substation network model was modelled in ATP-EMTP. The simulation results showed the harmonic penetration in the local network is dependent on the frequency of the harmonic injection, which is related to the switching frequency of the BESS, combined by possible resonance between cable capacitances and transformer leakage impedances. In addition, a high-frequency model of a 33/0.4 kV transformer between the BESS and the connection point is developed, based on limited structural specification and one FRA measurement reference.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125798126","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

Application of spectrum detection technology in rail-ground transition resistance of urban rail transit 频谱检测技术在城市轨道交通轨地过渡阻力检测中的应用

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961554

Jun Ye, Xiaobin Cao, Yiren Long, Yi Li, Lejia Liu, Yujing Liang

{"title":"Application of spectrum detection technology in rail-ground transition resistance of urban rail transit","authors":"Jun Ye, Xiaobin Cao, Yiren Long, Yi Li, Lejia Liu, Yujing Liang","doi":"10.1109/ICHVE53725.2022.9961554","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961554","url":null,"abstract":"The harm of stray current brought by the rapid development of urban rail transit is becoming more and more serious. The rail-to-ground transition resistance is the most important factor affecting the size and distribution of stray current, and it is the key to study the problem of stray current. Therefore, it is very meaningful to judge the amount of stray current by detecting the magnitude of rail-ground transition resistance. In this paper, by establishing a simulation model of subway rail-drainage network, the influence of transition resistance, soil resistivity and concrete layer resistivity on the impedance amplitude phase-frequency characteristic curve between the rail and the drainage network is simulated and analyzed. The research finds: The change of soil resistivity has no effect on the impedance amplitude-phase-frequency characteristic curve between the rail and the drainage network. The influence of the resistivity of the concrete layer on the impedance amplitude-frequency characteristic curve between the rail and the drainage network is above 300kHz. The influence frequency range of the phase-frequency characteristic curve of the impedance between the grids is above 70kHz; the frequency range of the influence of the change of the transition resistance on the impedance amplitude and phase-frequency characteristic curve between the rail and the discharge grid is 50Hz-1MHz. The method of detecting whether the rail-to-ground transition resistance meets the standard is of great significance to the evaluation and prevention of stray current by using the amplitude-phase-frequency characteristic curve of the impedance between the rail and the drainage network in the frequency section.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"56 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126123452","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

A New UHV Apparatus Explosion Protection Testing and Research Technology on Arc Fault 一种新型特高压设备防爆试验及电弧故障研究技术

2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE) Pub Date : 2022-09-25 DOI: 10.1109/ICHVE53725.2022.9961621

Kanghang He, Juzhen Wu, Yanming Cao

{"title":"A New UHV Apparatus Explosion Protection Testing and Research Technology on Arc Fault","authors":"Kanghang He, Juzhen Wu, Yanming Cao","doi":"10.1109/ICHVE53725.2022.9961621","DOIUrl":"https://doi.org/10.1109/ICHVE53725.2022.9961621","url":null,"abstract":"With UHV power transmission systems development worldwide, there is a growing need to increase the safety and stability of power systems. Power apparatus as the foundation of the power transmission system now needs to improve the explosion prevention ability. In this paper, we proposed a new testing method to research explosion protection when an AC shot circuit fault caused an arc to occur inside the power apparatus. The arc will vaporize the oil and may result in an explosion and huge damage to the whole power transmission system. The unique testing platform with a large power generating system, synchronous measure system, and fire protection system is designed and established. Testing circuit designed can generate arc with fixed preset arc current value. And a measuring system can synchronously record the key information e.g. arc voltage, the pressure of the apparatus, stress of the binder bolt, and the temperature of the oil. Several true type test results including recorded measurements proved that the proposed testing technology can greatly promote the explosion protection research of UHV power apparatus.","PeriodicalId":125983,"journal":{"name":"2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124701470","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