2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)最新文献_第3页

Influence of Temperature Transient on Frequency Domain Dielectric Response of Oil-Paper Sample 温度瞬变对油纸样品频域介电响应的影响

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670487

Ankita Garg, C. Banerjee, A. Baral, S. Chakravorti

引用次数: 0

Difference and Analysis of Mechanical Vibration Signal Characteristics between Mechanical Defects and Partial Discharge Defects of Gas Insulated Switchgear 气体绝缘开关柜机械缺陷与局部放电缺陷机械振动信号特征的差异与分析

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670536

Yi-ming Ding, Y. Zhong, Xupeng Wang, J. Hao, Xiping Jiang

{"title":"Difference and Analysis of Mechanical Vibration Signal Characteristics between Mechanical Defects and Partial Discharge Defects of Gas Insulated Switchgear","authors":"Yi-ming Ding, Y. Zhong, Xupeng Wang, J. Hao, Xiping Jiang","doi":"10.1109/catcon52335.2021.9670536","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670536","url":null,"abstract":"Mechanical defects and partial discharge (PD) are two typical defects of GIS equipment. Both of them can cause abnormal sound vibration, which may lead to misjudgment in field detection and threaten the safe operation of the equipment. To explore the difference between mechanical defect vibration and PD vibration of GIS, in this paper, based on the actual operating GIS, the vibration detection and PD test on disconnector chamber, potential transformer chamber with normal and abnormal sound status were carried out. The vibration signals under cases of normal, mechanical defects, PD were obtained. Difference analysis of the signals from time domain, frequency domain and generating mechanism was carried out. Results show that GIS mechanical defect vibration is mainly 100Hz, accompanied by 100Hz frequency doubling. The frequency spectrum distribution is basically in the range of 0~4kHz, and the waveform have sinusoidal signs. The PD vibration signal characteristic is unique, showing a strong and weak alternating double signal cluster waveform with a period of 20ms, which has strong intermittency and 50Hz correlation. The frequency spectrum contains a large number of 50Hz and 100Hz multiplier components. Signals are concentrated at 2~4kHz and 6~8kHz, and also distributed at 8kHz and above. The results provide a theoretical basis for GIS fault identification.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115503647","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

Transfer Learning based Condition Assessment of High Voltage Insulator: A Comparative Analysis 基于迁移学习的高压绝缘子状态评估:比较分析

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670517

Satyajit Panigrahy, S. Karmakar, R. Sahoo

{"title":"Transfer Learning based Condition Assessment of High Voltage Insulator: A Comparative Analysis","authors":"Satyajit Panigrahy, S. Karmakar, R. Sahoo","doi":"10.1109/catcon52335.2021.9670517","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670517","url":null,"abstract":"Routine inspection of a power line insulator system for early problem detection and maintenance is required for the effective transmission of electrical power to customers. Unlike the traditional manual inspection methods such as foot patrol, helicopter assisted methods, flying and climbing robots are time consuming, dangerous, labor intensive, and expensive. This work primarily focused on the insulator image classification of the Chinese Power Line Insulator Dataset (CPLID). Convolutional Neural Network (CNN) and pre-trained neural networks with different optimizers like Adam, Adamax, Adagrad, Adadelta, Nadam, Ftrl, and RMSprop were used to find out the best combination of CNN and pre-trained neural network with the optimizer to provide robust performance and higher accuracy. Finally, CNN with Adamax optimizer provided overall accuracy of 95.27% and the pre-trained CNN Densenet 201 with Adam optimizer gave overall accuracy of 100%. In the automated inspection of transmission line insulators, the deployment of UAVs and deep learning algorithms can be a useful starting point for many researchers throughout the world.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122166213","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: 1

Condition Monitoring of Power Transformer Insulation by Return Voltage Measurement 用回电压法监测电力变压器绝缘状态

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670485

Gajanand Soni, S. Dutta, A. Baral

引用次数: 4

Non Isothermal Thermo Gravimetric Analysis (TGA) Measurements of Oxidative Aged Solid Insulation 氧化老化固体绝热材料的非等温热重分析(TGA)测量

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670509

S. Rohith, Deepak Kanumuri, Niharika Baruah, S. K. Nayak

引用次数: 0

Fault Identification & Classification in an Interconnected Power System Network using Machine Learning 基于机器学习的互联电力系统网络故障识别与分类

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670518

Makizh Shrinivas G, A. Saravanan, Gaajula Vishnu Pradeep, Bharathvaj S, K. C. Sindhu Thampatty

{"title":"Fault Identification & Classification in an Interconnected Power System Network using Machine Learning","authors":"Makizh Shrinivas G, A. Saravanan, Gaajula Vishnu Pradeep, Bharathvaj S, K. C. Sindhu Thampatty","doi":"10.1109/catcon52335.2021.9670518","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670518","url":null,"abstract":"Power Systems consist of three generalized phases namely generation, transmission, and distribution. It is the backbone of any electrical system. In any such network, faults create the major threat of damage and collapse of the entire grid if left unchecked. Thus, knowing the nature of the fault(s) occurring and determining the location of the same is a major challenge to some of our outdated grids. As a result of such a situation, even the right measures to be taken are delayed and millions are left in the dark with no electricity. The objective of this project is to predict and segregate the faults, occurring on the lines in various positions in an interconnected power system network. The preferred is a single-phase IEEE 5 Bus System. The idea is to model the same using MATLAB/ SIMULINK for fault feature extraction. The obtained data is used to create a master dataset. Machine learning models are trained and tested to obtain the classification results. The results are verified using the confusion matrices. In the end the accuracy scores of the algorithms are compared.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116458288","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 Auxiliary Steering Angle Sensor for Power-Steering in Four-Wheelers 一种用于四轮汽车动力转向的新型辅助转向角传感器

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670537

Mithun M. S., Utpol Tarafdar, H. P.

{"title":"A New Auxiliary Steering Angle Sensor for Power-Steering in Four-Wheelers","authors":"Mithun M. S., Utpol Tarafdar, H. P.","doi":"10.1109/catcon52335.2021.9670537","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670537","url":null,"abstract":"Electric Power-steering (EPS) has currently become one of the most essential features of a four-wheeler. An EPS module has a Steering Angle Sensor (SAS) that detects the angular displacement of the steering wheel made by the driver and produces signals that will in turn trigger the electric motor in the steering assembly to rotate the front wheels of the vehicle as required. When the SAS is faulty or aged, its functionality will be compromised and this can affect the passenger’s safety. Therefore, it is being proposed to install an auxiliary SAS on all four-wheelers. This auxiliary SAS will be also calibrated just like the built-in SAS of the vehicle. Therefore, any the difference between its indication and the actual front-wheel orientation will point to an issue in the EPS. Thus, it will act as a condition assessment tool for the EPS. But since this is an add-on system, its output can be also made to serve additional functions such as, data collection, parking assistance etc. The choice of transducer for this auxiliary SAS is a resistive potentiometric transducer as it can be easily coupled with the steering rod, making it a plug & play system. But, resistive transducers too are prone to wear & tear. Hence a new non-contact type transducer has been developed whose details are being presented in this paper. This paper also presents some preliminary evaluation results of this new sensor.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116360402","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: 2

A Technique for the Condition Monitoring of Outdoor Polymeric Insulators made of Micro/nano Dielectric Weathershed Material 微纳米介电防风雨材料室外聚合物绝缘子状态监测技术

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670482

Baby Sindhu A V, M. J. Thomas

{"title":"A Technique for the Condition Monitoring of Outdoor Polymeric Insulators made of Micro/nano Dielectric Weathershed Material","authors":"Baby Sindhu A V, M. J. Thomas","doi":"10.1109/catcon52335.2021.9670482","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670482","url":null,"abstract":"In polluted regions, to minimise the electrical power outages due to overhead insulator flashover, measurement of insulator leakage current is used as a technique to monitor the health of the insulators. This technique gives emphasis to a critical level of current and the initiation of preventive maintenance depending upon the critical value of the leakage current. In this paper the behavior of leakage current along the micro/nano boron nitride (BN) filled silicone rubber (SR) weathershed material for application in outdoor insulators under polluted environment is analyzed by conducting the Inclined Plane Test (test for tracking and erosion) as per the IEC 60587 standard procedure. It is seen that the leakage current measured in this study before and after the initiation of the degradation by the erosion process is the same and does not show an increasing trend. Thus, the degradation of the composite insulator cannot be detected by merely checking the increase in the value of leakage current to the critical value. This paper proposes another method to detect the degradation of the material by analyzing the Fast Fourier Transform (FFT) spectra of the leakage current. This method can be used to monitor composite polymeric outdoor insulator made of micro composite as well as nanocomposite.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125708853","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: 1

Quantitative Analysis of the Effect of Nanoforging on the Shielding Effectiveness of Building Construction Materials 纳米锻造对建筑材料屏蔽效果影响的定量分析

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670488

K. Ravishankar, A. V, S. K.

{"title":"Quantitative Analysis of the Effect of Nanoforging on the Shielding Effectiveness of Building Construction Materials","authors":"K. Ravishankar, A. V, S. K.","doi":"10.1109/catcon52335.2021.9670488","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670488","url":null,"abstract":"High intensity electric and magnetic fields produced by lightning discharge can penetrate through any structure in the vicinity. In the exposure environment, the wall materials play significant role in deciding the extent of field penetration allowed by structures. Any sensitive equipment inside such structures may respond unintentionally to the field exposed and it is advisable to know the shielding provided to the equipment to ensure safe operation. The paper quantifies the shielding effectiveness provided by structure made of concrete and glass fiber reinforced gypsum (GFRG) against lightning electromagnetic field penetration in time domain. Simulation study is conducted in FEKO electromagnetic simulation software. To study the effect of nano forging on the shielding properties of structures, the base concrete is modified with addition of carbon nano tubes (CNT). Substantial increase in shielding effectiveness is noted on nano forged base concrete material. Besides, CNT mixed concrete fillers promises improvement in the electric field shielding offered by GFRG panels thus adding to the installation advantage. For magnetic field, construction material does not render considerable shielding.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128766307","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: 2

Surface Degradation of HTV Silicone Rubber under the effect of low air Pressure 低压作用下HTV硅橡胶的表面降解

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI: 10.1109/catcon52335.2021.9670529

Srijib Banerjee, S. D

{"title":"Surface Degradation of HTV Silicone Rubber under the effect of low air Pressure","authors":"Srijib Banerjee, S. D","doi":"10.1109/catcon52335.2021.9670529","DOIUrl":"https://doi.org/10.1109/catcon52335.2021.9670529","url":null,"abstract":"Polymeric insulators are widely accepted for the use of outdoor insulators in power transmission systems. When they are planted at the higher altitude regions the corona discharge activity can get accelerated due to the effect of low pressure. The corona discharge intensity under low air pressure can change the surface morphology of the insulator eventually leading to ageing which further leads to the insulator failure. In the present study high temperature vulcanized (HTV) silicone rubber samples were exposed to corona discharges under low pressure environment. The samples were kept in a pressure chamber and the internal pressure was varied between 100 kPa to 40 kPa by using a vacuum pump to setup an analogy with the higher altitude conditions. A point plane electrode system maintaining a gap distance of 5 mm between the sample and the needle tip was setup for corona discharge creation. The samples were exposed to corona discharges for 10 hours and the results show that discharge current increased with the decrease in pressure. Fourier transform infrared (FTIR) spectroscopy was carried out to observe the physico-chemical changes occurring on aged samples and the samples under decreasing pressure showed higher hydroxylation which promotes the surface deterioration eventually leading to ageing of the samples.","PeriodicalId":162130,"journal":{"name":"2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129190199","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