Pub Date : 2017-11-01DOI: 10.1109/ICRERA.2017.8191260
San Janhunen, A. Grönman, K. Hynynen, M. Hujala, M. Kuisma, Pekka Härkönen
The sound of wind turbines occasionally causes annoyance among residents living nearby. A high sound pressure level fa an obvious reason for annoyance. However, there seems to be other explanations for annoyance, since annoyance and sound pressure level are not always fully correlated. In this study, the audibility of wind turbine noise and the factors affecting it are examined by using data collected from two residential areas near operating wind farms. The aims are to develop methods of analyzing the factors affecting the audibility of wind turbine noise and to analyze and compare the impacts of sound pressure levels, as well as wind characteristics and amplitude modulation on the audibility. The results reveal that combining self-reported annoyance levels with measurements of wind and sound characteristics makes it possible to gather versatile information about the audibility of wind turbine sound indoors and the annoyance caused by it. The results show that the sound pressure level is an important factor in the audibility of wind turbine noise, and wind characteristics seem to have some impact on it as well.
{"title":"Audibility of wind turbine noise indoors: Evidence from mixed-method data","authors":"San Janhunen, A. Grönman, K. Hynynen, M. Hujala, M. Kuisma, Pekka Härkönen","doi":"10.1109/ICRERA.2017.8191260","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191260","url":null,"abstract":"The sound of wind turbines occasionally causes annoyance among residents living nearby. A high sound pressure level fa an obvious reason for annoyance. However, there seems to be other explanations for annoyance, since annoyance and sound pressure level are not always fully correlated. In this study, the audibility of wind turbine noise and the factors affecting it are examined by using data collected from two residential areas near operating wind farms. The aims are to develop methods of analyzing the factors affecting the audibility of wind turbine noise and to analyze and compare the impacts of sound pressure levels, as well as wind characteristics and amplitude modulation on the audibility. The results reveal that combining self-reported annoyance levels with measurements of wind and sound characteristics makes it possible to gather versatile information about the audibility of wind turbine sound indoors and the annoyance caused by it. The results show that the sound pressure level is an important factor in the audibility of wind turbine noise, and wind characteristics seem to have some impact on it as well.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"23 1","pages":"164-168"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82829373","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.2017.8191088
P. Tourou, J. Chhor, K. Günther, C. Sourkounis
Grid-connected doubly-fed induction generators suffer from limited fault ride-through capability during grid faults and disturbances. This paper proposes a control and energy management scheme for a DFIG-based wind energy conversion system with a converter-free battery energy storage that improves the quality of power delivered to the utility grid during normal operating conditions and enhances the behavior of the system during significant three-phase voltage dips. The converter control system is presented as well as the overall energy management.
{"title":"Energy storage integration in DFIG-based wind energy conversion systems for improved fault ride-through capability","authors":"P. Tourou, J. Chhor, K. Günther, C. Sourkounis","doi":"10.1109/ICRERA.2017.8191088","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191088","url":null,"abstract":"Grid-connected doubly-fed induction generators suffer from limited fault ride-through capability during grid faults and disturbances. This paper proposes a control and energy management scheme for a DFIG-based wind energy conversion system with a converter-free battery energy storage that improves the quality of power delivered to the utility grid during normal operating conditions and enhances the behavior of the system during significant three-phase voltage dips. The converter control system is presented as well as the overall energy management.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"127 ","pages":"374-377"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91462333","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.2017.8191285
Rissyu Sei, T. Yachi, Y. Hirata, Yasuyuki Watanabe
Solar matching systems, which are specialized systems for use in sunlight-type plant factories, have recently been attracting significant attention. In such systems, filtered blue and red light, which are necessary for photosynthesis, are applied to plant growth, while the unneeded green light is used for electric power generation. Since accurate estimates of photovoltaic (PV) power generation amounts are important for efficient energy operations, this paper proposes a method for estimating the power generation of flexible PV cells mounted on the roof/wall surface of a solar matching greenhouse.
{"title":"Power generation estimate of flexible PV Panel for a solar matching house","authors":"Rissyu Sei, T. Yachi, Y. Hirata, Yasuyuki Watanabe","doi":"10.1109/ICRERA.2017.8191285","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191285","url":null,"abstract":"Solar matching systems, which are specialized systems for use in sunlight-type plant factories, have recently been attracting significant attention. In such systems, filtered blue and red light, which are necessary for photosynthesis, are applied to plant growth, while the unneeded green light is used for electric power generation. Since accurate estimates of photovoltaic (PV) power generation amounts are important for efficient energy operations, this paper proposes a method for estimating the power generation of flexible PV cells mounted on the roof/wall surface of a solar matching greenhouse.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"473 1","pages":"310-314"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79661118","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.2017.8191242
V. Castiglia, P. Livreri, R. Miceli, A. Raciti, G. Schettino, F. Viola
This paper presents a novel study of the performances of a five-level three-phase Cascaded H-Bridge Multilevel Inverter with Phase Shifted B-Spline based modulation techniques. The study has been focused on the use of B-Spline functions as carrier signals in order to evaluate the performances of the converter in terms of harmonic content on the output voltage. In the first step of this analysis the THD% has been taken into account to compare the voltage waveforms. Interesting results have been found on the fundamental amplitude of the phase and line voltage. Moreover, harmonic spectra has been compared to evaluate the different harmonic distribution in the voltage waveforms. In this work the analysis has been carried out in the Matlab-Simulink® environment.
{"title":"Performances of a three-phase five-level cascaded H-bridge inverter with phase shifted B-spline based modulation techniques","authors":"V. Castiglia, P. Livreri, R. Miceli, A. Raciti, G. Schettino, F. Viola","doi":"10.1109/ICRERA.2017.8191242","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191242","url":null,"abstract":"This paper presents a novel study of the performances of a five-level three-phase Cascaded H-Bridge Multilevel Inverter with Phase Shifted B-Spline based modulation techniques. The study has been focused on the use of B-Spline functions as carrier signals in order to evaluate the performances of the converter in terms of harmonic content on the output voltage. In the first step of this analysis the THD% has been taken into account to compare the voltage waveforms. Interesting results have been found on the fundamental amplitude of the phase and line voltage. Moreover, harmonic spectra has been compared to evaluate the different harmonic distribution in the voltage waveforms. In this work the analysis has been carried out in the Matlab-Simulink® environment.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"1 1","pages":"1192-1197"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83484005","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.2017.8191174
P. Ayala, V. Proano, D. Arcos-Aviles, A. Velastegui, J. Andino
This paper proposes a strategy to identify the states of ignition phase of 250 W High-Intensity Discharge Metal-Halide (HID-MH) lamps. The proposed strategy is based on Neural Classifier with the aim of providing high stability at ignition stage of HID-MH lamps. A hybrid Sliding Mode Control (SMC) is applied at each ignition stage to obtain a reduction up to 50% of starting time, which provides a fast response to the HID-MH lamps in practical applications.
{"title":"Switching on-off HID-MH lamps using a neural classifier","authors":"P. Ayala, V. Proano, D. Arcos-Aviles, A. Velastegui, J. Andino","doi":"10.1109/ICRERA.2017.8191174","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191174","url":null,"abstract":"This paper proposes a strategy to identify the states of ignition phase of 250 W High-Intensity Discharge Metal-Halide (HID-MH) lamps. The proposed strategy is based on Neural Classifier with the aim of providing high stability at ignition stage of HID-MH lamps. A hybrid Sliding Mode Control (SMC) is applied at each ignition stage to obtain a reduction up to 50% of starting time, which provides a fast response to the HID-MH lamps in practical applications.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"55 1","pages":"823-827"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91275142","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.2017.8191286
N. Kimura, T. Morizane, H. Omori
In the utility system, the most popular fault is 1 line-to-ground fault. It causes the imbalance voltages and currents in 3-phase power system. This paper presents the novel unbalanced fault detection by using the very fast real time symmetrical coordinate transform from the memorized 3-phase voltage data before 1 sampling time. This paper presents some characteristics of the very fast real time symmetrical coordinate transform (VFRT-SCT) from the memorized 3-phase voltage data. The effects of the harmonic components are mainly described here. As shown in the analytical results, certain amount of error occurs when the harmonic component is included in the utility voltage.
{"title":"Characteristics of fast real time symmetrical coordinate transformation used for fault ride through","authors":"N. Kimura, T. Morizane, H. Omori","doi":"10.1109/ICRERA.2017.8191286","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191286","url":null,"abstract":"In the utility system, the most popular fault is 1 line-to-ground fault. It causes the imbalance voltages and currents in 3-phase power system. This paper presents the novel unbalanced fault detection by using the very fast real time symmetrical coordinate transform from the memorized 3-phase voltage data before 1 sampling time. This paper presents some characteristics of the very fast real time symmetrical coordinate transform (VFRT-SCT) from the memorized 3-phase voltage data. The effects of the harmonic components are mainly described here. As shown in the analytical results, certain amount of error occurs when the harmonic component is included in the utility voltage.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"24 1","pages":"315-320"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89528851","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.2017.8191103
C. Lazaroiu, M. Roscia
For a long time it has been neglected the role the maritime transport sector in terms of atmospheric emissions, although navigation is considered to be at the level of the European Union, a major cause of air pollution: the international shipping industry is currently estimated to account: for up to 5% of world carbon emissions. That share could be 25% by 2050 — a significant contribution to climate change. Some studies indicate that as of 2020, the main source of atmospheric emissions of certain pollutants (such as sulphur oxide and nitrogen oxide) will be attributable to the shipping sector, thus exceeding the inland sources. An interesting alternative to reduce the level of pollution caused by ships when docked in ports is connecting to shore side electrical power, known as cold ironing. The new concept of zero emissions' port is referred to a port powered mainly from renewable energies in order to fulfill its power requirements and to reduce the air emissions mainly using this concept for the emerging cold ironing regulation. In the paper, two scenarios have been simulated for the port of Naples with two sea wave energy converter and with several initial calculations. economic too, that bring to the conclusions of which could be the most suitable solution to obtain a Smart Port City.
{"title":"Sustainable port through sea wave energy converter","authors":"C. Lazaroiu, M. Roscia","doi":"10.1109/ICRERA.2017.8191103","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191103","url":null,"abstract":"For a long time it has been neglected the role the maritime transport sector in terms of atmospheric emissions, although navigation is considered to be at the level of the European Union, a major cause of air pollution: the international shipping industry is currently estimated to account: for up to 5% of world carbon emissions. That share could be 25% by 2050 — a significant contribution to climate change. Some studies indicate that as of 2020, the main source of atmospheric emissions of certain pollutants (such as sulphur oxide and nitrogen oxide) will be attributable to the shipping sector, thus exceeding the inland sources. An interesting alternative to reduce the level of pollution caused by ships when docked in ports is connecting to shore side electrical power, known as cold ironing. The new concept of zero emissions' port is referred to a port powered mainly from renewable energies in order to fulfill its power requirements and to reduce the air emissions mainly using this concept for the emerging cold ironing regulation. In the paper, two scenarios have been simulated for the port of Naples with two sea wave energy converter and with several initial calculations. economic too, that bring to the conclusions of which could be the most suitable solution to obtain a Smart Port City.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"22 1","pages":"462-467"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90315807","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.2017.8191214
V. Iyer, Srinivas Gulur, S. Bhattacharya
This paper addresses the stability challenges that exist in a bidirectional grid connected electric vehicle (EV) charger. The EV charger under consideration comprises of an ac-dc single phase active rectifier stage followed by a dc-dc dual active bridge (DAB) stage. small-signal models suited for stability analysis of this charger are derived. Controller design considerations are discussed in order to ensure closed loop stability of individual stages and to prevent any instability due to interaction between the stages. Experimental results on an EV charger hardware prototype are presented to validate the proposed models and control design considerations.
{"title":"Small-signal modeling and stability analysis of a bidirectional electric vehicle charger","authors":"V. Iyer, Srinivas Gulur, S. Bhattacharya","doi":"10.1109/ICRERA.2017.8191214","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191214","url":null,"abstract":"This paper addresses the stability challenges that exist in a bidirectional grid connected electric vehicle (EV) charger. The EV charger under consideration comprises of an ac-dc single phase active rectifier stage followed by a dc-dc dual active bridge (DAB) stage. small-signal models suited for stability analysis of this charger are derived. Controller design considerations are discussed in order to ensure closed loop stability of individual stages and to prevent any instability due to interaction between the stages. Experimental results on an EV charger hardware prototype are presented to validate the proposed models and control design considerations.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"1997 1","pages":"1030-1035"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90434701","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.2017.8191137
D. Sunter, Bryan Murray, Marcus Lehmann, Rachael Green, Bryant Ke, Brooke Maushund, Darnel M. Kammen
The technically recoverable global wave energy resource is estimated to be between 2 PWh/year and 5 5 PWh/year, approximately 12% and 32% of global electricity consumption Despite wave energy's vast global potential, there has been relatively little commercial deployment to date. There is large variation in both the current estimated and future expected electricity generation costs associated with wave technologies. This paper quantifies a forecasted levelized cost of electricity (LCOE) for wave energy by performing a two-stage Monte Carlo simulation, considering both the variability in current LCOE estimates and uncertainty in the one-factor learning rate. We compare the forecasted LCOE to wave energy targets of the European Union and U.S. Department of Energy and show the criticality of support mechanisms to achieve learning rates that lead to economic competitiveness in the utility-scale markets.
{"title":"Two-stage Monte Carlo simulation to forecast levelized cost of electricity for wave energy","authors":"D. Sunter, Bryan Murray, Marcus Lehmann, Rachael Green, Bryant Ke, Brooke Maushund, Darnel M. Kammen","doi":"10.1109/ICRERA.2017.8191137","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191137","url":null,"abstract":"The technically recoverable global wave energy resource is estimated to be between 2 PWh/year and 5 5 PWh/year, approximately 12% and 32% of global electricity consumption Despite wave energy's vast global potential, there has been relatively little commercial deployment to date. There is large variation in both the current estimated and future expected electricity generation costs associated with wave technologies. This paper quantifies a forecasted levelized cost of electricity (LCOE) for wave energy by performing a two-stage Monte Carlo simulation, considering both the variability in current LCOE estimates and uncertainty in the one-factor learning rate. We compare the forecasted LCOE to wave energy targets of the European Union and U.S. Department of Energy and show the criticality of support mechanisms to achieve learning rates that lead to economic competitiveness in the utility-scale markets.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"28 1","pages":"638-641"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87186288","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.2017.8191274
William W. Anderson, O. Yakimenko
Microgrids (small-scale power systems optimizing variable generation and loads) that serve a remote island's load requirements demonstrate both the extreme challenges and opportunities in providing reliable power in remote locations. Microgrids which provide The entire power requirements with on-island resources can be considered a complex system. This complex system behavior when better understood should provide the knowledge to better influence the behavior of future green microgrids. This paper presents the first attempt to characterize such a complex system by conducting a comparative analysis of two different approaches to green microgrids serving two islands based upon an onsite visit to both.
{"title":"Comparative analysis of two microgrid solutions for island green energy supply sustainability","authors":"William W. Anderson, O. Yakimenko","doi":"10.1109/ICRERA.2017.8191274","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191274","url":null,"abstract":"Microgrids (small-scale power systems optimizing variable generation and loads) that serve a remote island's load requirements demonstrate both the extreme challenges and opportunities in providing reliable power in remote locations. Microgrids which provide The entire power requirements with on-island resources can be considered a complex system. This complex system behavior when better understood should provide the knowledge to better influence the behavior of future green microgrids. This paper presents the first attempt to characterize such a complex system by conducting a comparative analysis of two different approaches to green microgrids serving two islands based upon an onsite visit to both.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"33 1","pages":"245-250"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73548344","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}
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