2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)最新文献_第9页

Implementation of Self-Organizing Map and Logistic Regression in Dissolved Gas Analysis of Transformer oils 自组织映射和逻辑回归在变压器油溶解气体分析中的应用

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493899

Chandrima Saha, Niharika Baruah, S. K. Nayak

{"title":"Implementation of Self-Organizing Map and Logistic Regression in Dissolved Gas Analysis of Transformer oils","authors":"Chandrima Saha, Niharika Baruah, S. K. Nayak","doi":"10.1109/ICPADM49635.2021.9493899","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493899","url":null,"abstract":"The occurrence of incipient faults in a transformer is attributed to several types of thermal, electrical, chemical and mechanical stresses which deteriorate the transformer insulation and cause ageing. Thus it is of utmost importance to carry out periodic maintenance of this electrical equipment as well as to develop a method that would provide an early stage diagnosis of the transformer insulation abnormalities. Dissolved Gas Analysis (DGA) is widely considered to be a powerful approach to detect the incipient faults in oil-immersed transformers. But shortcomings in the conventional methods based on DGA are nowadays addressed by various intelligent techniques with enhanced accuracy of fault detection. This paper introduces the implementation of machine learning and proposes a method which utilizes Self-Organizing Map (SOM) and Logistic Regression (LR) to detect and predict the faults occurring in a transformer based on DGA. The DGA dataset used in this paper consists of a variety of cases with six types of faults. The proposed model presents the interpretation of this dataset using clustering analysis by SOM and the model performance parameters are found to be superior to other machine learning algorithms as well as traditional methods. Unlike other fault diagnostic methods which mostly implement single classifiers, this technique uses clustering of the DGA data followed by the application of a classification algorithm which demonstrates high accuracy and reliability of fault identification.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"348 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132441818","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

Ageing Classification of Metal Oxide Surge Arrester Using Its Power Factor 基于功率因数的金属氧化物避雷器老化分类

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493968

Abdullah Munir, Z. Abdul-Malek, Rai Naveed Arshad

{"title":"Ageing Classification of Metal Oxide Surge Arrester Using Its Power Factor","authors":"Abdullah Munir, Z. Abdul-Malek, Rai Naveed Arshad","doi":"10.1109/ICPADM49635.2021.9493968","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493968","url":null,"abstract":"The third harmonic component of resistive leakage current is considered as the most sensitive ageing indicator of metal oxide surge arrester (MOSA). It is essential to extract the resistive component of the total leakage current prior to determining its third harmonic content. Several methods have been proposed so far to determine the resistive leakage current. But, the implementation of complex mathematical procedures has made these techniques difficult and less accurate. Therefore, this paper is aimed to propose the power factor as a new ageing indicator of MOSA. New indicator is determined without extracting the resistive component of the total leakage current. This study has been performed experimentally on three aged samples of 120 kV rated MOSAs to determine their power factors. The results have shown that the variation in proposed indicator towards arrester’s ageing is similar to that of the resistive third harmonic component. The percentage rise in the power factors of MOSA-I, II, and III by increasing the voltage from 70kV to 120kV to simulate ageing, are found to be 105%, 118%, and 108% respectively.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131537785","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

Effect of Compounding Process Parameters Selection on Conductivity Level of Polymer Blends with Aluminium oxide as nanofiller for HVDC Cable Application 复合工艺参数选择对以氧化铝为纳米填料的高压直流电缆聚合物共混物电导率的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493923

S. M. Noor, N. Muhamad, K. A. A. Halim, M. Jamil, S. Ghani

{"title":"Effect of Compounding Process Parameters Selection on Conductivity Level of Polymer Blends with Aluminium oxide as nanofiller for HVDC Cable Application","authors":"S. M. Noor, N. Muhamad, K. A. A. Halim, M. Jamil, S. Ghani","doi":"10.1109/ICPADM49635.2021.9493923","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493923","url":null,"abstract":"The usage of polymer nanocomposite as electrical insulating materials has gained more interest and start to be examined by the various researchers. The aims are same which is, to improve the electrical and mechanical performance of the insulation materials for high voltage application purposes. This paper will present the early finding on using compounding polymer-based nanocomposite as high voltage direct current (HVDC) cable insulating material. In this paper, the Design of Experiment (DOE) is the approach used in compounding the small amount of high-density polyethylene (HDPE) added into linear low-density polyethylene (LLDPE) blends with aluminium oxide (Al2O3) as nanofillers. The effect of several parameters during the compounding process such as concentrations of the material, rotations per minute of the screw speed and the temperature used on conductivity value of the material will be discussed in this paper. In the end, the best parameter for the compounding process can be identify and conclude.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133945732","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

Electric Field and Potential Changes Studies on Cast-Resin Dry-Type Power Transformer Having Misalignment 铸树脂干式电力变压器失对电场及电位变化研究

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493936

Muhammad Jazmi Jaafar, N. Muhamad, M. Jamil, N. Rosle

引用次数: 1

Research on the Optimization of Grounding Methods and Power Loss Reduction Based on AC 500kV XLPE Submarine Cable Project 基于交流500kV交联聚乙烯海底电缆工程的接地方式优化及降损研究

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493938

Xiao Du, Xuezhong Liu, Y. Tang, Te Li, Shaohua Wang, Naiyi Li

{"title":"Research on the Optimization of Grounding Methods and Power Loss Reduction Based on AC 500kV XLPE Submarine Cable Project","authors":"Xiao Du, Xuezhong Liu, Y. Tang, Te Li, Shaohua Wang, Naiyi Li","doi":"10.1109/ICPADM49635.2021.9493938","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493938","url":null,"abstract":"Based on the Zhoushan alternating current (AC) 500kV cross-linked polyethylene (XLPE) submarine cable project, a method of metal sheath grounding via a low resistor, a low reactor, or a low resistor in parallel with a reactor at both terminals of the cable to reduce the power loss has been proposed in this paper. By numerically modeling the submarine cable system with the PSCAD/EMTDC software, the voltage and current distributions, and power loss on the sheath, armor and total submarine cable under three types of grounding impedors are calculated. The results show that with the increase of resistance value or inductance value, the sheath current decreases, and the armor current and sheath voltage increase, but the overall loss of the submarine cable decreases. When the submarine cable is operating under normal, short-circuit or transient conditions, in which the sheath voltage does not exceed the critical condition of these allowable values, the way that the sheath is grounded via a low resistor is the most beneficial to the power loss reduction. When the corresponding critical resistance value is 2.1 ohms at the start of cable and 1.3 ohms at the end respectively, it will reduce the power loss of cable for one phase 23.5% and the total power loss including resistors for one phase 14.2%, which is conducive to improving both the safety and operation economy of submarine cable.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133198710","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: 5

Effects of Graphene Coatings on hindering Space Charge injection in Epoxy Resin 石墨烯涂层对环氧树脂中空间电荷注入的阻碍作用

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493969

P. Seri, S. V. Suraci, D. Fabiani

引用次数: 0

[ICPADM 2021 Front cover] [ICPADM 2021封面]

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/icpadm49635.2021.9493943

引用次数: 0

Classification of Degraded Polymer Insulator Using Support Vector Machine 基于支持向量机的降解聚合物绝缘体分类

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493974

A. Din, M. Piah, A. R. Abdullah, F. Abdullah

{"title":"Classification of Degraded Polymer Insulator Using Support Vector Machine","authors":"A. Din, M. Piah, A. R. Abdullah, F. Abdullah","doi":"10.1109/ICPADM49635.2021.9493974","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493974","url":null,"abstract":"The ability to monitor closely the surface degradation condition of polymer insulator will be really beneficial to the power utility company in order to ensure smooth and safe power transmitted to the consumer. If the level of degradation condition could be classified, then it could ease the maintenance team to take proper action as to avoid any undesirable event from happening. In this study, it has implemented the leakage current signal parameters data in the classification process of degraded field-aged insulator. These signal parameters are extracted from the Spectrogram. Prior to this analysis, the leakage current signal is captured during the testing method of inclined plane tracking. The physical evaluations such as arithmetical mean of surface roughness and static contact angle are also measured for the purpose of comparison of surface conditions. The Support Vector Machine is implemented in the machine learning test, in which the percentage of classification accuracy between degraded sample and the controlled sample is recorded. To validate the classification results obtained, the insulator sheds under test was going through the Spray Method to determine the criteria of hydrophobicity class in Table 1 of the IEC TS 62073:2016. By using the percentage of total harmonic distortion data, the consistency results of the classification accuracy percentage have been successfully determined the two significant classes and the transition class between them. However, there is an existence of insignificant classes if the root means squared leakage current data is implemented. Therefore, by implementing the appropriate leakage current signal parameter data, the degradation classification could be determined accurately.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121983043","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

Thermal Degradation Kinetics of High Temperature Polymers for Aeronautic Cables Insulation 航空电缆绝缘用高温聚合物热降解动力学

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9494003

G. Teyssèdre, S. Dinculescu, S. Le Roy, T. Hähner, C. Lagomarsini, Patrick Rybski

引用次数: 1

The Effect of Water Absorption on the Dielectric Response of Calcined Zirconia-based Polyethylene Nanocomposites 吸水率对氧化锆基聚乙烯纳米复合材料介电响应的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493954

K. Y. Lau, C. W. Tan, K. Y. Ching, N. H. Rahim, A. Vaughan

{"title":"The Effect of Water Absorption on the Dielectric Response of Calcined Zirconia-based Polyethylene Nanocomposites","authors":"K. Y. Lau, C. W. Tan, K. Y. Ching, N. H. Rahim, A. Vaughan","doi":"10.1109/ICPADM49635.2021.9493954","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493954","url":null,"abstract":"Polymer nanocomposites have become one of the attractive research areas in exploring new dielectric materials. This is due to their potential dielectric property enhancements as a consequence of nanostructuration. However, the degradation of the dielectric performance of nanocomposites has also been reported and this is can be related to the presence of water within the materials. The main objective of the current work was to investigate the effects of water absorption on the mass change and dielectric response of polyethylene (PE) nanocomposites containing uncalcined and calcined zirconia (ZrO2) nanofillers. The results show that nanocomposites containing uncalcined ZrO2 exhibited a marginal increase in the real permittivity after water immersion. Under similar water immersion periods, nanocomposites containing calcined ZrO2 also demonstrated a marginal increase in the real permittivity. Factors influencing the dielectric response of the nanocomposites after ZrO2 calcination and water immersion are discussed.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114445922","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