2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)最新文献

Improvements in AEPD location identification by removing outliers and post processing 通过去除异常值和后处理改进AEPD位置识别

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449510

Deepthi Antony, G. S. Punekar

引用次数: 4

Performance evaluation of Modified Genetic Algorithm over Genetic Algorithm implementation on fault diagnosis of Cascaded Multilevel Inverter 改进遗传算法与遗传算法在级联多电平逆变器故障诊断中的性能比较

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449507

T. G. Manjunath, A. Kusagur

引用次数: 4

Automatic detection of powerlines in UAV remote sensed images 无人机遥感图像中电力线的自动检测

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449501

K. Ramesh, A. Murthy, J. Senthilnath, S. N. Omkar

引用次数: 16

Mathematical-detection-algorithms for cable diagnostics and investigations with Line-Resonance-Analysis 用线共振分析进行电缆诊断和调查的数学检测算法

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449505

T. Maier, T. Leibfried, Eric Elcheroth

{"title":"Mathematical-detection-algorithms for cable diagnostics and investigations with Line-Resonance-Analysis","authors":"T. Maier, T. Leibfried, Eric Elcheroth","doi":"10.1109/CATCON.2015.7449505","DOIUrl":"https://doi.org/10.1109/CATCON.2015.7449505","url":null,"abstract":"For power cables several diagnostic methods are available. The main and typical diagnostic methods can be separated into global and local failure detection systems. An example for the global detection systems is the Dissipation-Factor-Measurement (tanδ). This technique is well established in the diagnostic and allows detecting a global failure, e.g. an electrical tree. However, this technique can't localize the failure position. Approved detection systems for local failures are the Time-Domain-Reflectometry (TDR) and the Partial-Discharge-Measurement (TE). These techniques need a failure (small insulation discontinuity or impedance skip) to detect the position. The Line-Resonance-Analysis (LIRA) is a possible solution for the detection of global and local failures. The system isn't well established and controversially discussed by experts. In this research study we investigate different algorithms applied to the LIRA in order to clarify the abilities of the LIRA. The LIRA technique is a modified type of the Frequency-Domain-Reflectometry (FDR). The main difference is that the LIRA uses the information of the resonance frequencies. The investigation of the LIRA is based on spectral analysis, which uses the Fourier-Analysis (DFT/FFT). Unfortunately this method is limited in the spacial resolution. For this reason and the fact that other investigation techniques for diagnostic use other possible detection algorithm, we want to examine more feasible mathematical functions. Potential algorithms for the spectral analysis are the Goertzel-Algorithm and the Chirp-Z-Transform (CZT). In this paper the research focus lies on the LIRA with different possible detection algorithm.","PeriodicalId":385907,"journal":{"name":"2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124857357","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: 3

Condition assessment of induction motor under different power quality events 感应电机在不同电能质量事件下的状态评估

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449517

Supriya Jaiswal, M. Ballal

引用次数: 3

Condition assessment of oil-paper insulation used in power transformer based on polarization energy 基于极化能量的电力变压器油纸绝缘状态评估

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449539

M. Mukherjee, A. Pradhan, A. Baral, S. Chakravorti

{"title":"Condition assessment of oil-paper insulation used in power transformer based on polarization energy","authors":"M. Mukherjee, A. Pradhan, A. Baral, S. Chakravorti","doi":"10.1109/CATCON.2015.7449539","DOIUrl":"https://doi.org/10.1109/CATCON.2015.7449539","url":null,"abstract":"This paper presents a novel methodology for condition assessment of oil-paper insulation used in power transformers. The discussed methodology is based on energy acquired by the insulation during polarization process. Existing literature shows that steady excitation voltage is required to be applied to the insulation during polarization current measurement. During polarization, the dipoles in insulating material try to align themselves in the direction of applied field. During orientations process, these dipoles interact with each other which results in frictional loss within the dielectric material. As this loss is supplied by the excitation voltage, an increase in the frictional loss within the dielectric material leads to increment in energy requirement for completion of polarization process within the insulation. Therefore, by evaluating the amount of energy required for completion of polarization process, the condition of an insulating material can be predicted. For testing this hypothesis, three samples having different moisture content are prepared in the laboratory for testing. Once tested on the laboratory samples, the proposed method is applied on data collected from real-life power transformer. Results presented in this paper show that the discussed method can be reliably applied to real life transformers for assessing insulation condition.","PeriodicalId":385907,"journal":{"name":"2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114233016","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

An effective implementation of Phasor measurement unit (PMU) by using non-recursive DFT algorithm 采用非递归DFT算法实现相量测量单元(PMU)

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449533

S. Hareesh, P. Raja, M. Selvan

引用次数: 16

Detection of partial discharges and its effect on solid insulation used in high voltage cable 高压电缆局部放电检测及其对固体绝缘的影响

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449535

S. Karmakar, Soumya Mishra

{"title":"Detection of partial discharges and its effect on solid insulation used in high voltage cable","authors":"S. Karmakar, Soumya Mishra","doi":"10.1109/CATCON.2015.7449535","DOIUrl":"https://doi.org/10.1109/CATCON.2015.7449535","url":null,"abstract":"Most of the high voltage (HV) power equipment is made up with solid insulation like paper insulation, glass insulation, epoxy insulation etc. The oldest kind of insulating material among all insulation, the paper insulation is used in cable and nowadays the Cross linked Polyethylene (XLPE) is commonly used for cable insulation. The presence of impurities in the insulation system is one of the root causes of insulation failure as they are form a weak zone inside the healthy insulation system. Therefore, early identification of degradation process like formation of electrical tree structures inside such solid electrical insulation due to high voltage tress during its operating life is utmost requirement to prevent the electrical power equipment from a sudden and complete insulation failure. To study the growth mechanism of electrical tree structure inside the insulation with different applied high voltage a commonly used insulating material like XLPE insulation in HV power cable are consider for this present work. This work also describes the ageing process by conducting the partial discharge (PD) test on the same insulating materials. Finally, the effect of PD on insulation i.e., formation of electrical tree structure on solid insulation was observed by using Scanning Electron Microscope (SEM) and analyzed.","PeriodicalId":385907,"journal":{"name":"2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"197 Pt A 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115979974","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

Space charge dynamics in LDPE LDPE中的空间电荷动力学

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449536

J. S. Chahal, C. C. Reddy

引用次数: 1

Recurrence plot analysis for assessing the quality of polymeric insulators 聚合物绝缘子质量评价的递归图分析

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2015-12-01 DOI: 10.1109/CATCON.2015.7449538

B. S. Reddy, M. Rajalingam

引用次数: 0