Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191171
S. Konakalla, R. D. de Callafon
Phasor Measurement Unit (PMU) data provides time synchronized measurements of important electrical and power signals in AC power grids. The sheer volume of three phase electric grid PMU data, typically measured at 60 samples second, necessitates the use of automatic event (anomaly) detection for grid monitoring and control. However, this becomes an unwieldy task in cases of PMU data dropouts due to the unobservable state of the grid. Hence, robustness to missing phasor measurements would be critical in order to monitor and control the electric grid in an orderly manner. This paper illustrates an approach for interpolation of PMU data in case of missing data points by optimal filtering of phasor data along with event detection. It is shown that optimal filters can be estimated on the basis of non linear recursive search optimization on real-time PMU data and these filters can be used to generate forecasts in case of missing PMU measurements. The approach is illustrated on phasor data obtained from a microPMU system developed by Power Standards Lab for data ride-through in case of dropouts.
{"title":"Robustness to missing synchrophasor data for power and frequency event detection in electric grids","authors":"S. Konakalla, R. D. de Callafon","doi":"10.1109/ICRERA.2017.8191171","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191171","url":null,"abstract":"Phasor Measurement Unit (PMU) data provides time synchronized measurements of important electrical and power signals in AC power grids. The sheer volume of three phase electric grid PMU data, typically measured at 60 samples second, necessitates the use of automatic event (anomaly) detection for grid monitoring and control. However, this becomes an unwieldy task in cases of PMU data dropouts due to the unobservable state of the grid. Hence, robustness to missing phasor measurements would be critical in order to monitor and control the electric grid in an orderly manner. This paper illustrates an approach for interpolation of PMU data in case of missing data points by optimal filtering of phasor data along with event detection. It is shown that optimal filters can be estimated on the basis of non linear recursive search optimization on real-time PMU data and these filters can be used to generate forecasts in case of missing PMU measurements. The approach is illustrated on phasor data obtained from a microPMU system developed by Power Standards Lab for data ride-through in case of dropouts.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"61 1","pages":"808-812"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77732559","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191121
C. E. Capovilla, A. S. Filho, I. Casella, F. Costa, L. A. Luz-de-Almeida
Wireless signals dispatched from a remote operations center to command wind turbines are prone to impulsive interferences. In this applied context, this paper proposes the use of a median filter to mitigate these impulsive interferences in a doubly-fed induction wind turbine. To a perfect proposal evaluation, a co-simulation with the wireless system model and the generator predictive control one is performed to observe the deleterious effects to be treated by the filter. The obtained results endorse the effectiveness of the filtering method in wind turbine wireless controlled applications.
{"title":"Application of median filter in coded wireless references of a predictive wind DFIG turbine","authors":"C. E. Capovilla, A. S. Filho, I. Casella, F. Costa, L. A. Luz-de-Almeida","doi":"10.1109/ICRERA.2017.8191121","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191121","url":null,"abstract":"Wireless signals dispatched from a remote operations center to command wind turbines are prone to impulsive interferences. In this applied context, this paper proposes the use of a median filter to mitigate these impulsive interferences in a doubly-fed induction wind turbine. To a perfect proposal evaluation, a co-simulation with the wireless system model and the generator predictive control one is performed to observe the deleterious effects to be treated by the filter. The obtained results endorse the effectiveness of the filtering method in wind turbine wireless controlled applications.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"111 1","pages":"548-551"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77874740","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191182
N. Koirala, Rabin Dhakal, D. Lubitz, S. Bhandari, G. Dev, Y. Dhakal, Uttam Niraula
Small or micro hydro power generation is a promising renewable energy source that has received significant attention because of its capacity to generate green energy ranging from few watts up to hundreds of kilowatts. Small, low head hydropower plants are applicable in remote areas where grid extension is difficult due to geographical terrain. Micro hydro generators do not require the large cost of civil works for conventional hydropower and do not require the cost and environmental impacts of constructing a large dam and diversion structure. Recently there has been increasing interest in low head small hydro turbines by researchers and stakeholders who are working for rural electrification of off-grid communities in Nepal. This study discusses research and practice using various low head water micro hydro generators, including Improved Water Mills, Pico Hydro Generators, Gravitational Water Vortex Power Plants and Archimedes Screws, in Nepal. Major innovations with these systems by researchers working in Nepal are reviewed, and recent steps towards commercialization are discussed. The various technical and economic parameters of those systems are compared and evaluated. This information is essential for researchers and stakeholders to optimally select a suitable turbine according to site and economic conditions.
{"title":"Review of low head turbines system of Nepal for rural electrification","authors":"N. Koirala, Rabin Dhakal, D. Lubitz, S. Bhandari, G. Dev, Y. Dhakal, Uttam Niraula","doi":"10.1109/ICRERA.2017.8191182","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191182","url":null,"abstract":"Small or micro hydro power generation is a promising renewable energy source that has received significant attention because of its capacity to generate green energy ranging from few watts up to hundreds of kilowatts. Small, low head hydropower plants are applicable in remote areas where grid extension is difficult due to geographical terrain. Micro hydro generators do not require the large cost of civil works for conventional hydropower and do not require the cost and environmental impacts of constructing a large dam and diversion structure. Recently there has been increasing interest in low head small hydro turbines by researchers and stakeholders who are working for rural electrification of off-grid communities in Nepal. This study discusses research and practice using various low head water micro hydro generators, including Improved Water Mills, Pico Hydro Generators, Gravitational Water Vortex Power Plants and Archimedes Screws, in Nepal. Major innovations with these systems by researchers working in Nepal are reviewed, and recent steps towards commercialization are discussed. The various technical and economic parameters of those systems are compared and evaluated. This information is essential for researchers and stakeholders to optimally select a suitable turbine according to site and economic conditions.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"56 1","pages":"861-869"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84384336","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191150
Zhaoyang Ye, H. Wen, Guanying Chu, Xingshuo Li
Differential power processing (DPP) structure present obvious advantages in improving the energy output and overall efficiency of a photovoltaic system under the partial shading conditions. This paper presents a novel minimum-power tracking (MPT) algorithm for the two-stage PV-PV DPP structure, where each PV is implemented with the maximum power point tracking (MPPT) control while the central control is control by the MPT. Considering that the string current determines the power processed through the DPP converters, the DPP converters are specially designed to process minimal power in order to achieve higher efficiency. A simulated model using PSIM shows clearly that this system has the tendency to improve power extraction and could work perfectly under various conditions.
{"title":"Minimum-power-tracking for PV-PV differential power processing systems","authors":"Zhaoyang Ye, H. Wen, Guanying Chu, Xingshuo Li","doi":"10.1109/ICRERA.2017.8191150","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191150","url":null,"abstract":"Differential power processing (DPP) structure present obvious advantages in improving the energy output and overall efficiency of a photovoltaic system under the partial shading conditions. This paper presents a novel minimum-power tracking (MPT) algorithm for the two-stage PV-PV DPP structure, where each PV is implemented with the maximum power point tracking (MPPT) control while the central control is control by the MPT. Considering that the string current determines the power processed through the DPP converters, the DPP converters are specially designed to process minimal power in order to achieve higher efficiency. A simulated model using PSIM shows clearly that this system has the tendency to improve power extraction and could work perfectly under various conditions.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"344 1","pages":"696-700"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78553989","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191234
A. Çolak, Y. Shibata, F. Kurokawa, M. Yesilbudak, S. Ermi̇ş, R. Bayindir
Smart grid systems include many different power sources such as renewable and fossil energy basis. While collecting all type of energy on the grid, phase order, frequency, maximum voltage value and synchronization time of each power station should be known for a smooth operation of the smart grid. Therefore, the detection of peak values of grid voltages will help the smart grid operators to connect all power sources to the grid without having problems like voltage collapse, over voltage, over current and shutting down the power station. For this purpose, in an effective and efficient manner, we compare the original AMPD and the modified AMPD methods in terms of the peak point detection performance, analyze how the modified AMPD method is used for the phase-to-phase effective voltage values and show how FPGAs are able to accelerate the detection time as on-line.
{"title":"Peak point detection of phase-to-phase effective voltages for smart grids: A comparative study","authors":"A. Çolak, Y. Shibata, F. Kurokawa, M. Yesilbudak, S. Ermi̇ş, R. Bayindir","doi":"10.1109/ICRERA.2017.8191234","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191234","url":null,"abstract":"Smart grid systems include many different power sources such as renewable and fossil energy basis. While collecting all type of energy on the grid, phase order, frequency, maximum voltage value and synchronization time of each power station should be known for a smooth operation of the smart grid. Therefore, the detection of peak values of grid voltages will help the smart grid operators to connect all power sources to the grid without having problems like voltage collapse, over voltage, over current and shutting down the power station. For this purpose, in an effective and efficient manner, we compare the original AMPD and the modified AMPD methods in terms of the peak point detection performance, analyze how the modified AMPD method is used for the phase-to-phase effective voltage values and show how FPGAs are able to accelerate the detection time as on-line.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"63 1","pages":"1149-1153"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82186765","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191135
F. Kurokawa, Masashi Taguchi, H. Maruta
A model control and a filter suppressing oscillation of the output voltage that can obtain the stable output voltage of a dc-dc converter have been proposed previous. Although there is a problem that the condition on the input side of dc-dc converter is changed when it connects the load equipment to renewable energy generators through the DC bus, since the renewable energy generators are sometimes unstable due to the weather changes. Dc-dc converters are affected by such fluctuation of the DC bus voltage as an input voltage. In this paper, the design to stabilize the output voltage of the sensorless static model including the filter when the input voltage is varied is studied. The validity of the design is verified by simulation.
{"title":"Sensorless static model design of digital DC-DC converter for various input voltage conditions","authors":"F. Kurokawa, Masashi Taguchi, H. Maruta","doi":"10.1109/ICRERA.2017.8191135","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191135","url":null,"abstract":"A model control and a filter suppressing oscillation of the output voltage that can obtain the stable output voltage of a dc-dc converter have been proposed previous. Although there is a problem that the condition on the input side of dc-dc converter is changed when it connects the load equipment to renewable energy generators through the DC bus, since the renewable energy generators are sometimes unstable due to the weather changes. Dc-dc converters are affected by such fluctuation of the DC bus voltage as an input voltage. In this paper, the design to stabilize the output voltage of the sensorless static model including the filter when the input voltage is varied is studied. The validity of the design is verified by simulation.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"73 1","pages":"626-630"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76312890","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191215
Mahmoud Saleh, Yusef Esa, Nwabueze Onuorah, A. Mohamed
This paper provides a new approach to find the optimal location for Microgrids (MGs) in electric distribution systems using complex network analysis. An optimal location in this paper refers to a location that would result in increased grid resilience, reduced power losses, less line loading, higher voltage stability and secured supply to critical loads during power outage. The criteria used to find the optimal placement of MGs were based on the centrality analysis adopted from complex network theory, the center of mass concept used in physics, and the controlled delivery grid (CDG) concept. An IEEE 30-bus system was used as a case study. Results using MATLAB and PowerWorld show the effectiveness of the proposed methodology to be used for MG placement.
{"title":"Optimal microgrids placement in electric distribution systems using complex network framework","authors":"Mahmoud Saleh, Yusef Esa, Nwabueze Onuorah, A. Mohamed","doi":"10.1109/ICRERA.2017.8191215","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191215","url":null,"abstract":"This paper provides a new approach to find the optimal location for Microgrids (MGs) in electric distribution systems using complex network analysis. An optimal location in this paper refers to a location that would result in increased grid resilience, reduced power losses, less line loading, higher voltage stability and secured supply to critical loads during power outage. The criteria used to find the optimal placement of MGs were based on the centrality analysis adopted from complex network theory, the center of mass concept used in physics, and the controlled delivery grid (CDG) concept. An IEEE 30-bus system was used as a case study. Results using MATLAB and PowerWorld show the effectiveness of the proposed methodology to be used for MG placement.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"14 1","pages":"1036-1040"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87097972","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191108
M. Rashidi, Abedalsalam Bani-Ahmed, Robabeh Nasiri, A. Mazaheri, A. Nasiri
Development of the new generation of high power and high frequency power electronic switches along with the need for compact controllable converters for utilization of distributed energy resources in the grid, have led to significant developments in the area of solid state transformers in the last years. The design process of a high frequency transformer as the main element in the solid state transformer is illustrated in this article. A multi winding transformer for multiport SST application is designed, studied and built in this research. In a MPSST several windings feed the core. As the result, coupling coefficient between each pair of windings, become an important factor which is studied in this study. Since the transformer is designed for high frequency applications, the power loss in the wire and core of the transformer increases as the result of higher skin effect and eddy current loss in high frequency. Three important factors in the design of HF transformer for MPSST are discussed in the paper. First, four different possible core materials are compared based on their flux density, frequency range, loss and price. Then the cable selection is illustrated and finally, different winding placement and distribution on the same core are suggested and the inductance and coupling coefficient matrices are calculated using ANSYS Maxwell 3D simulation. The transformer is built in the lab and the inductance values matches the expected values from the simulation.
{"title":"Design and implementation of a multi winding high frequency transformer for MPSST application","authors":"M. Rashidi, Abedalsalam Bani-Ahmed, Robabeh Nasiri, A. Mazaheri, A. Nasiri","doi":"10.1109/ICRERA.2017.8191108","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191108","url":null,"abstract":"Development of the new generation of high power and high frequency power electronic switches along with the need for compact controllable converters for utilization of distributed energy resources in the grid, have led to significant developments in the area of solid state transformers in the last years. The design process of a high frequency transformer as the main element in the solid state transformer is illustrated in this article. A multi winding transformer for multiport SST application is designed, studied and built in this research. In a MPSST several windings feed the core. As the result, coupling coefficient between each pair of windings, become an important factor which is studied in this study. Since the transformer is designed for high frequency applications, the power loss in the wire and core of the transformer increases as the result of higher skin effect and eddy current loss in high frequency. Three important factors in the design of HF transformer for MPSST are discussed in the paper. First, four different possible core materials are compared based on their flux density, frequency range, loss and price. Then the cable selection is illustrated and finally, different winding placement and distribution on the same core are suggested and the inductance and coupling coefficient matrices are calculated using ANSYS Maxwell 3D simulation. The transformer is built in the lab and the inductance values matches the expected values from the simulation.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"49 1","pages":"491-494"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88074252","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191120
S. Hattori, K. Kajiwara, N. Matsui, F. Kurokawa
A home solar power system for micro electric vehicles (EVs) is one of the important technologies to realize a sustainable energy society. The aim of this paper is a demonstration of a high performance digital control phase-shifted full-bridge converter connected between solar panels and the dc-bus line. Since the voltage in a home storage battery and EV battery is around 72V in some products, the output voltage of prototype is regulated from 70V to 84V. The output power of prototype is 8kW conforming with a general power amount of home solar power generation. As a result, the prototype achieves up to 94% power efficiency. Moreover, the output voltage fluctuation is less than 1% when a load step change is from 0A to 100A.
{"title":"72V DC bus output full-bridge converter in solar power system for micro EV","authors":"S. Hattori, K. Kajiwara, N. Matsui, F. Kurokawa","doi":"10.1109/ICRERA.2017.8191120","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191120","url":null,"abstract":"A home solar power system for micro electric vehicles (EVs) is one of the important technologies to realize a sustainable energy society. The aim of this paper is a demonstration of a high performance digital control phase-shifted full-bridge converter connected between solar panels and the dc-bus line. Since the voltage in a home storage battery and EV battery is around 72V in some products, the output voltage of prototype is regulated from 70V to 84V. The output power of prototype is 8kW conforming with a general power amount of home solar power generation. As a result, the prototype achieves up to 94% power efficiency. Moreover, the output voltage fluctuation is less than 1% when a load step change is from 0A to 100A.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"1 1","pages":"544-547"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86290969","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}
Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191224
M. -. Chaouche, H. Houassine, S. Moulahoum, I. Colak
Power transformers are one of the critical points in the renewable energies networks for the transport and distribution of the electric energy. As a result, the diagnosis of transformers is necessary to ensure the reliability and service life. The frequency behavior of the transformer winding is generally studied using a high-frequency model to diagnose the various damages of the winding. For this purpose, this paper discusses the application of the finite element method (FEM) to construct a lumped parameters ladder network of an actual transformer winding. The investigated coil is discretized in five (05) identical sections that includes 30 turns for each. In addition, after the experimental validation of the adopted model, a diagnostic study to the axial deformations of the transformer winding was made using the parameters analysis of the detailed model and the transfer function obtained from the FRA test.
{"title":"Finite element method to construct a lumped parameter ladder network of the transformer winding","authors":"M. -. Chaouche, H. Houassine, S. Moulahoum, I. Colak","doi":"10.1109/ICRERA.2017.8191224","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191224","url":null,"abstract":"Power transformers are one of the critical points in the renewable energies networks for the transport and distribution of the electric energy. As a result, the diagnosis of transformers is necessary to ensure the reliability and service life. The frequency behavior of the transformer winding is generally studied using a high-frequency model to diagnose the various damages of the winding. For this purpose, this paper discusses the application of the finite element method (FEM) to construct a lumped parameters ladder network of an actual transformer winding. The investigated coil is discretized in five (05) identical sections that includes 30 turns for each. In addition, after the experimental validation of the adopted model, a diagnostic study to the axial deformations of the transformer winding was made using the parameters analysis of the detailed model and the transfer function obtained from the FRA test.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"70 1","pages":"1092-1096"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86340721","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：