Pub Date : 2011-12-01DOI: 10.1109/EPQU.2011.6128831
M. R. Silva, L. Galotto, J. Pinto, C. Canesin, E. H. Cardoso, S. Amorim, E. A. Mertens
This paper presents a methodology and a specialist tool for failure probability analysis of induction type watt-hour meters, considering the main variables related to their measurement degradation processes. The database of the metering park of a distribution company, named Elektro Electricity and Services Co., was used for determining the most relevant variables and to feed the data in the software. The modeling developed to calculate the watt-hour meters probability of failure was implemented in a tool through a user friendly platform, written in Delphi language. Among the main features of this tool are: analysis of probability of failure by risk range; geographical localization of the meters in the metering park, and automatic sampling of induction type watt-hour meters, based on a risk classification expert system, in order to obtain information to aid the management of these meters. The main goals of the specialist tool are following and managing the measurement degradation, maintenance and replacement processes for induction watt-hour meters.
本文提出了一种分析感应式电能表失效概率的方法和专用工具，考虑了与电能表测量退化过程相关的主要变量。配电公司Elektro Electricity and Services Co.的计量园区数据库用于确定最相关的变量，并将数据输入软件。所开发的电能表故障概率计算模型通过Delphi语言编写的用户友好平台在工具中实现。该工具的主要特点是:按风险范围分析故障概率;对计量园区内的电表进行地理定位，并基于风险分类专家系统对感应式电表进行自动抽样，以获取信息，辅助电表管理。专业工具的主要目标是跟踪和管理感应电能表的测量退化，维护和更换过程。
{"title":"Specialist tool for monitoring the measurement degradation process of induction active energy meters","authors":"M. R. Silva, L. Galotto, J. Pinto, C. Canesin, E. H. Cardoso, S. Amorim, E. A. Mertens","doi":"10.1109/EPQU.2011.6128831","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128831","url":null,"abstract":"This paper presents a methodology and a specialist tool for failure probability analysis of induction type watt-hour meters, considering the main variables related to their measurement degradation processes. The database of the metering park of a distribution company, named Elektro Electricity and Services Co., was used for determining the most relevant variables and to feed the data in the software. The modeling developed to calculate the watt-hour meters probability of failure was implemented in a tool through a user friendly platform, written in Delphi language. Among the main features of this tool are: analysis of probability of failure by risk range; geographical localization of the meters in the metering park, and automatic sampling of induction type watt-hour meters, based on a risk classification expert system, in order to obtain information to aid the management of these meters. The main goals of the specialist tool are following and managing the measurement degradation, maintenance and replacement processes for induction watt-hour meters.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125917835","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 : 2011-12-01DOI: 10.1109/EPQU.2011.6128827
L. C. O. Oliveira, G. A. E. e Melo, J. B. Souza, C. Canesin, B. Bonatto, F. Belchior, M. Oliveira, E. A. Mertens
An important alteration of the equivalent loads profile has been observed in the electrical energy distribution systems, for the last years. Such fact is due to the significant increment of the electronic processors of electric energy that, in general, behave as nonlinear loads, generating harmonic distortions in the currents and voltages along the electric network. The effects of these nonlinear loads, even if they are concentrated in specific sections of the network, are present along the branch circuits, affecting the behavior of the entire electric network. For the evaluation of this phenomenon it is necessary the analysis of the harmonic currents flow and the understanding of the causes and effects of the consequent voltage harmonic distortions. The usual tools for calculation the harmonic flow consider one-line equivalent networks, balanced and symmetrical systems. Therefore, they are not tools appropriate for analysis of the operation and the influence/interaction of mitigation elements. In this context, this work proposes the development of a computational tool for the analysis of the three-phase harmonic propagation using Norton modified models and considering the real nature of unbalanced electric systems operation.
{"title":"Harmonic propagation analysis in electric energy distribution systems","authors":"L. C. O. Oliveira, G. A. E. e Melo, J. B. Souza, C. Canesin, B. Bonatto, F. Belchior, M. Oliveira, E. A. Mertens","doi":"10.1109/EPQU.2011.6128827","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128827","url":null,"abstract":"An important alteration of the equivalent loads profile has been observed in the electrical energy distribution systems, for the last years. Such fact is due to the significant increment of the electronic processors of electric energy that, in general, behave as nonlinear loads, generating harmonic distortions in the currents and voltages along the electric network. The effects of these nonlinear loads, even if they are concentrated in specific sections of the network, are present along the branch circuits, affecting the behavior of the entire electric network. For the evaluation of this phenomenon it is necessary the analysis of the harmonic currents flow and the understanding of the causes and effects of the consequent voltage harmonic distortions. The usual tools for calculation the harmonic flow consider one-line equivalent networks, balanced and symmetrical systems. Therefore, they are not tools appropriate for analysis of the operation and the influence/interaction of mitigation elements. In this context, this work proposes the development of a computational tool for the analysis of the three-phase harmonic propagation using Norton modified models and considering the real nature of unbalanced electric systems operation.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132738337","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 : 2011-10-29DOI: 10.1109/EPQU.2011.6128927
A. Attya, T. Hartkopf
This paper presents a detailed model to generate wind speed data for a certain site in a time step that can reach 1 second. This fine time step could be implemented to study the effect of wind energy penetration on the power system stability (Dynamic and static from the point of views of voltage and frequency). Moreover, a simplified algorithm is proposed to estimate the wind speed array for each wind turbine in a wind farm depending only on the initial wind stream incoming to the wind farm and considering the wake effect due to the rotor and tower shadowing. These wind speed arrays are synchronized as the time delays due to the spacing between wind turbines and the wind different velocities are considered. These wind speeds are the basic input for the wind farm electrical power and kinetic energy (especially in case of frequency drops) aggregation procedures. MATLAB was used to simulate the proposed techniques and plotting all the graphs presented in this paper.
{"title":"Generation of high resolution wind speeds and wind speed arrays inside a wind farm based on real site data","authors":"A. Attya, T. Hartkopf","doi":"10.1109/EPQU.2011.6128927","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128927","url":null,"abstract":"This paper presents a detailed model to generate wind speed data for a certain site in a time step that can reach 1 second. This fine time step could be implemented to study the effect of wind energy penetration on the power system stability (Dynamic and static from the point of views of voltage and frequency). Moreover, a simplified algorithm is proposed to estimate the wind speed array for each wind turbine in a wind farm depending only on the initial wind stream incoming to the wind farm and considering the wake effect due to the rotor and tower shadowing. These wind speed arrays are synchronized as the time delays due to the spacing between wind turbines and the wind different velocities are considered. These wind speeds are the basic input for the wind farm electrical power and kinetic energy (especially in case of frequency drops) aggregation procedures. MATLAB was used to simulate the proposed techniques and plotting all the graphs presented in this paper.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124382226","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 : 2011-10-17DOI: 10.1109/EPQU.2011.6128882
V. V. Lopes, A. Novais, C. M. Rangel
Fuel cell based power generation systems are expected to become more widespread in the near future. Stationary fuel cells may be used as an uninterruptible or back-up power supply, or to supply micro-grids. In particular, proton exchange membrane fuel cells (PEMFC) are an attractive technology due to its high energy density, rigid and simple structure, low operating temperature and fast start-up characteristics. The power quality assessment of fuel cells as a viable power sources requires a good understanding of the fuel cell performance characteristics. This paper presents two novel data-driven methodologies for the identification of the main steady state (polarization curve) and the dynamic (impedance response) characteristics for fuel-cells allowing the development of rapid, accurate and empirical models based on the experimental data. M-NMF is a modified non-negative matrix factorization technique developed for the analysis of polarization curve data that allows to identify the three main contributions for the fuel-cell power degradation, while for impedance spectroscopy data, this paper proposes the use of fractional order transfer functions (FC-FOTC) to describe the main dynamic modes present in the fuel-cell. A brief description of these two approaches is presented, together with the analysis of a real experimental dataset obtained from a 12W open cathode PEMFC stack to illustrate their potential and scope. While the former is instrumental for the deconvolution of the fuel cell polarization curves into its major components, the latter enables the estimation of the parameters related to the inherent transport and kinetic phenomena, thus opening the way, in both cases, for the interpretation of the effect of the operating conditions on the relative dominance and magnitude of these components and phenomena.
{"title":"Novel data-driven methodologies for parameter estimation and interpretation of fuel cells performance","authors":"V. V. Lopes, A. Novais, C. M. Rangel","doi":"10.1109/EPQU.2011.6128882","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128882","url":null,"abstract":"Fuel cell based power generation systems are expected to become more widespread in the near future. Stationary fuel cells may be used as an uninterruptible or back-up power supply, or to supply micro-grids. In particular, proton exchange membrane fuel cells (PEMFC) are an attractive technology due to its high energy density, rigid and simple structure, low operating temperature and fast start-up characteristics. The power quality assessment of fuel cells as a viable power sources requires a good understanding of the fuel cell performance characteristics. This paper presents two novel data-driven methodologies for the identification of the main steady state (polarization curve) and the dynamic (impedance response) characteristics for fuel-cells allowing the development of rapid, accurate and empirical models based on the experimental data. M-NMF is a modified non-negative matrix factorization technique developed for the analysis of polarization curve data that allows to identify the three main contributions for the fuel-cell power degradation, while for impedance spectroscopy data, this paper proposes the use of fractional order transfer functions (FC-FOTC) to describe the main dynamic modes present in the fuel-cell. A brief description of these two approaches is presented, together with the analysis of a real experimental dataset obtained from a 12W open cathode PEMFC stack to illustrate their potential and scope. While the former is instrumental for the deconvolution of the fuel cell polarization curves into its major components, the latter enables the estimation of the parameters related to the inherent transport and kinetic phenomena, thus opening the way, in both cases, for the interpretation of the effect of the operating conditions on the relative dominance and magnitude of these components and phenomena.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125403586","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 : 2011-10-17DOI: 10.1109/EPQU.2011.6128816
A. Collin, S. Djokic, Huw F. Thomas, Jan Meyer
This paper presents simple equivalent models of electric vehicle (EV) chargers, based on the measurements of a range of actual EVs. The developed models of the EV chargers are capable of correctly reproducing instantaneous input current waveforms, retaining all relevant electrical characteristics, including harmonic content. To analyse the effects of increased penetrations EV chargers on low-voltage network, the developed EV charger models are combined with the models of existing loads, as a part of the aggregate residential load mix.
{"title":"Modelling of electric vehicle chargers for power system analysis","authors":"A. Collin, S. Djokic, Huw F. Thomas, Jan Meyer","doi":"10.1109/EPQU.2011.6128816","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128816","url":null,"abstract":"This paper presents simple equivalent models of electric vehicle (EV) chargers, based on the measurements of a range of actual EVs. The developed models of the EV chargers are capable of correctly reproducing instantaneous input current waveforms, retaining all relevant electrical characteristics, including harmonic content. To analyse the effects of increased penetrations EV chargers on low-voltage network, the developed EV charger models are combined with the models of existing loads, as a part of the aggregate residential load mix.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134550879","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 : 2011-10-01DOI: 10.1109/EPQU.2011.6128876
G. Błajszczak, P. Antos, M. Wasiluk-Hassa
Installation of a large number of small sources called distributed generation creates many problems in proper control of national (and European) power grid. At the same time new technologies especially power electronics and measurement data computing associated with smart grid allows to use better and conscious these distributed sources. This paper describes what problems the distributed generation may cause, how this is mitigated and how the smart grid approach may take advantage of specific characteristic of distributed sources for ensuring more reliable quality of supply.
{"title":"Smart grid accommodation of distributed generation for more reliable quality of supply","authors":"G. Błajszczak, P. Antos, M. Wasiluk-Hassa","doi":"10.1109/EPQU.2011.6128876","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128876","url":null,"abstract":"Installation of a large number of small sources called distributed generation creates many problems in proper control of national (and European) power grid. At the same time new technologies especially power electronics and measurement data computing associated with smart grid allows to use better and conscious these distributed sources. This paper describes what problems the distributed generation may cause, how this is mitigated and how the smart grid approach may take advantage of specific characteristic of distributed sources for ensuring more reliable quality of supply.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124380154","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 : 2011-10-01DOI: 10.1109/EPQU.2011.6128924
Yoichi Tanaka
This paper presents an evaluation of the CO2 emission performance of a residential combined photovoltaic(PV), fuel cell(FC) and battery power system, whose commercialization in the near future shows promise considering that photovoltaic and fuel cell dual power generation systems are gaining popularity and residential battery power storage systems are being commercialized. A mathematical model of the power system is formulated as a mixed integer programming problem to make the optimal operation schedule for the system. The mathematical model includes electricity balance, heat balance and characteristics of system components. Annual CO2 emissions of 14 houses with the PV/FC/Battery power system were calculated assuming optimal system operations were conducted. The real-life electricity and heat demand data of 14 houses were used for these calculations. The calculations were carried out in “No battery”, “With battery” and “With battery and No backward flow” scenarios and the results compared. This research clarifies the CO2 emission performance of a PV/FC/Battery system as well as the reason behind the CO2 reduction and the change of CO2 emission performance when power backward flow is controlled.
{"title":"CO2 emission performance assessment of a residential PV/FC/battery power system","authors":"Yoichi Tanaka","doi":"10.1109/EPQU.2011.6128924","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128924","url":null,"abstract":"This paper presents an evaluation of the CO2 emission performance of a residential combined photovoltaic(PV), fuel cell(FC) and battery power system, whose commercialization in the near future shows promise considering that photovoltaic and fuel cell dual power generation systems are gaining popularity and residential battery power storage systems are being commercialized. A mathematical model of the power system is formulated as a mixed integer programming problem to make the optimal operation schedule for the system. The mathematical model includes electricity balance, heat balance and characteristics of system components. Annual CO2 emissions of 14 houses with the PV/FC/Battery power system were calculated assuming optimal system operations were conducted. The real-life electricity and heat demand data of 14 houses were used for these calculations. The calculations were carried out in “No battery”, “With battery” and “With battery and No backward flow” scenarios and the results compared. This research clarifies the CO2 emission performance of a PV/FC/Battery system as well as the reason behind the CO2 reduction and the change of CO2 emission performance when power backward flow is controlled.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127113539","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 : 2011-10-01DOI: 10.1109/EPQU.2011.6128928
Z. Hanzelka, Y. Varetsky
This paper discuses the properties of negative-sequence active power stream relative to the point of measurement in the unbalanced three-phase electric circuit. Analysis of the negative-sequence active power stream for the typical circuit asymmetry cases is carried out. It was shown that the stream direction can be used as an unbalance source index.
{"title":"Negative-sequence active power stream as an index of unbalance source","authors":"Z. Hanzelka, Y. Varetsky","doi":"10.1109/EPQU.2011.6128928","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128928","url":null,"abstract":"This paper discuses the properties of negative-sequence active power stream relative to the point of measurement in the unbalanced three-phase electric circuit. Analysis of the negative-sequence active power stream for the typical circuit asymmetry cases is carried out. It was shown that the stream direction can be used as an unbalance source index.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115058947","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 : 2011-10-01DOI: 10.1109/EPQU.2011.6128891
P. Carreira, Luís M. G. Maricato, N. Mendes, F. Bastião, V. M. Madeira, A. D. de Almeida
White stork (Ciconia ciconia L.) population has increased dramatically over the past decade in wet areas, particularly in the Mondego River Basin, located between Coimbra and Figueira da Foz cities, Portugal]. As consequence, demand for nesting and roosting in electric distribution equipment, e. g. poles, has accordingly increased resulting in frequent bird fatalities from electrocution, and often outages of power supply, as consequence of activation of automatic safety relay devices. Therefore, equipment damages and economical losses to industrial customers and bird deaths persuaded the main operator, EDP Distribuição, and Energy Service Regulatory Authority (ERSE), to implement management programs of storks' activities in the vicinity of electric equipment, e.g. poles and transformers.
{"title":"Management of storks and quality of Energy Service: Stork project","authors":"P. Carreira, Luís M. G. Maricato, N. Mendes, F. Bastião, V. M. Madeira, A. D. de Almeida","doi":"10.1109/EPQU.2011.6128891","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128891","url":null,"abstract":"White stork (Ciconia ciconia L.) population has increased dramatically over the past decade in wet areas, particularly in the Mondego River Basin, located between Coimbra and Figueira da Foz cities, Portugal]. As consequence, demand for nesting and roosting in electric distribution equipment, e. g. poles, has accordingly increased resulting in frequent bird fatalities from electrocution, and often outages of power supply, as consequence of activation of automatic safety relay devices. Therefore, equipment damages and economical losses to industrial customers and bird deaths persuaded the main operator, EDP Distribuição, and Energy Service Regulatory Authority (ERSE), to implement management programs of storks' activities in the vicinity of electric equipment, e.g. poles and transformers.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122530143","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 : 2011-10-01DOI: 10.1109/EPQU.2011.6128952
J. Barbosa, J. Oliveira, I. N. Gondim, T. V. Silva, F. P. Santilio, A. B. Vasconcellos, J. Pacheco
This paper aims to present and discuss matters related to the specification, design, construction, modeling and testing of a 3 MVAr - 34,5 kV Saturated Core Reactor (SCR). This equipment has been considered attractive for controlling the increase of busbar voltage, which occurs in electrical power systems. Although smaller units have been built and successfully operated, this work focuses a real scale device. Within this context, the present paper describes the physical principles related to the equipment operation, a strategy to find the main reactor construction parameters to attend a given reactive power demand, details linked to the build-up and installation step and, finally, site tests and corresponding computational studies to validate the developed ATPDraw model with different operating voltage conditions. The final results highlight both the saturated reactor performance at distinct operating situations, as well as the computational model response for representing the equipment behavior.
{"title":"Performance analysis and computational model validation of a real scale saturated core reactor","authors":"J. Barbosa, J. Oliveira, I. N. Gondim, T. V. Silva, F. P. Santilio, A. B. Vasconcellos, J. Pacheco","doi":"10.1109/EPQU.2011.6128952","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128952","url":null,"abstract":"This paper aims to present and discuss matters related to the specification, design, construction, modeling and testing of a 3 MVAr - 34,5 kV Saturated Core Reactor (SCR). This equipment has been considered attractive for controlling the increase of busbar voltage, which occurs in electrical power systems. Although smaller units have been built and successfully operated, this work focuses a real scale device. Within this context, the present paper describes the physical principles related to the equipment operation, a strategy to find the main reactor construction parameters to attend a given reactive power demand, details linked to the build-up and installation step and, finally, site tests and corresponding computational studies to validate the developed ATPDraw model with different operating voltage conditions. The final results highlight both the saturated reactor performance at distinct operating situations, as well as the computational model response for representing the equipment behavior.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129821962","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：