Pub Date : 2015-11-09DOI: 10.1109/ICGET.2015.7315095
K. Ahmed, M. Al- Amin, M. T. Rahman
In the context of the smart grid, energy management systems at household level has a vital impact on distribution grid. PV based energy systems at household level become more popular day-by-day. Thus scheduling residential energy storage device is necessary to optimize technical and market integration of distributed energy resources (DERs), especially the ones based on renewable energy. The first step of electricity consumption forecasting at individual household level is used to achieve proper scheduling of the storage devices. Then an intelligent agent based controlling technique is proposed to make sure the financial benefits of end-user as a part of energy management system. In this paper the forecasting ability of Artificial Neural Network (ANN) is evaluated to capture the daily electricity consumption profile of an individual household.
{"title":"Application of short term energy consumption forecasting for household energy management system","authors":"K. Ahmed, M. Al- Amin, M. T. Rahman","doi":"10.1109/ICGET.2015.7315095","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315095","url":null,"abstract":"In the context of the smart grid, energy management systems at household level has a vital impact on distribution grid. PV based energy systems at household level become more popular day-by-day. Thus scheduling residential energy storage device is necessary to optimize technical and market integration of distributed energy resources (DERs), especially the ones based on renewable energy. The first step of electricity consumption forecasting at individual household level is used to achieve proper scheduling of the storage devices. Then an intelligent agent based controlling technique is proposed to make sure the financial benefits of end-user as a part of energy management system. In this paper the forecasting ability of Artificial Neural Network (ANN) is evaluated to capture the daily electricity consumption profile of an individual household.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121372997","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315099
Golap Kanti Dey, K. Ahmmed
In our research work electrical characterization with different generation of solar cells depending upon the emergence as- First Generation: Mono and Poly-crystalline Silicon, Second Generation: Thin-film Solar Cell, Third Generation: Full Spectrum Utilization with comparative efficiency study of different solar cells is investigated. Besides, major part of our research is Multi-Junction Solar Cells (MJSC), for Space Solar Power Satellite (SSPS) system, created from III-V semiconductor materials, exhibit high efficiencies comparing to other existing photovoltaic technology. Here we have shown MJSC's are composed of 3 layers of material that have different bandgaps. The upper layer has the largest bandgap while the lower layer has the smallest bandgap. This model allows less energetic photons to pass through the upper layers and be absorbed by the lower layer, which increases the overall efficiency. One significant estimation is that generated photocurrent in each layer must be the same since the layers are in series. Besides, for most effective absorption from the spectrum of incident radiation, the bandgaps of each layer should differ by approximately equal energies. Due to the high cost, multi-junction solar cells are usually used in the SSPS system, in Microwave Power Beaming from space to ground based receiving station and as collector cells where a large amount of sunlight is reflected onto the cell.
{"title":"Performance characterization of photovoltaic technology with highly efficient Multi-Junction Solar Cells for Space Solar Power Satellite system","authors":"Golap Kanti Dey, K. Ahmmed","doi":"10.1109/ICGET.2015.7315099","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315099","url":null,"abstract":"In our research work electrical characterization with different generation of solar cells depending upon the emergence as- First Generation: Mono and Poly-crystalline Silicon, Second Generation: Thin-film Solar Cell, Third Generation: Full Spectrum Utilization with comparative efficiency study of different solar cells is investigated. Besides, major part of our research is Multi-Junction Solar Cells (MJSC), for Space Solar Power Satellite (SSPS) system, created from III-V semiconductor materials, exhibit high efficiencies comparing to other existing photovoltaic technology. Here we have shown MJSC's are composed of 3 layers of material that have different bandgaps. The upper layer has the largest bandgap while the lower layer has the smallest bandgap. This model allows less energetic photons to pass through the upper layers and be absorbed by the lower layer, which increases the overall efficiency. One significant estimation is that generated photocurrent in each layer must be the same since the layers are in series. Besides, for most effective absorption from the spectrum of incident radiation, the bandgaps of each layer should differ by approximately equal energies. Due to the high cost, multi-junction solar cells are usually used in the SSPS system, in Microwave Power Beaming from space to ground based receiving station and as collector cells where a large amount of sunlight is reflected onto the cell.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128439845","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315104
Mohammed Saifuddin Munna, Mohammad Ariful Islam Bhuyan, K. M. Rahman, Md Ashiqul Hoque
This paper proposed a design, implementation & performance of an energy efficient solar tracking system based on closed loop technique. This solar tracking system is autonomous dual axis hybrid type. Solar efficiency depends on PV cell and its tracking system. In our works we concentrate on the panel tracking system. Our tracking system is a sensor based tracking system and it can track the sun continuously. A sensor placed on the surface of the panel and sensor compare light intensity continuously. Then our control unit sends signal to actuator unit to reposition the panel. This system is energy efficient because the actuator unit shut down in cloudy weather and turns on in sunny weather. Powerful microcontroller used to calculate and evaluate the light intensity form sensor unit, then send instruction to actuator unit. For graceful and accurate angular motion we used the servo actuator system. It's no need additional real time clock to track annual motion and daily motion because it's based on active closed loop system. Our implemented design is more efficient and convenient than other tracker
{"title":"Design, implementation and performance analysis of a dual-axis autonomous solar tracker","authors":"Mohammed Saifuddin Munna, Mohammad Ariful Islam Bhuyan, K. M. Rahman, Md Ashiqul Hoque","doi":"10.1109/ICGET.2015.7315104","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315104","url":null,"abstract":"This paper proposed a design, implementation & performance of an energy efficient solar tracking system based on closed loop technique. This solar tracking system is autonomous dual axis hybrid type. Solar efficiency depends on PV cell and its tracking system. In our works we concentrate on the panel tracking system. Our tracking system is a sensor based tracking system and it can track the sun continuously. A sensor placed on the surface of the panel and sensor compare light intensity continuously. Then our control unit sends signal to actuator unit to reposition the panel. This system is energy efficient because the actuator unit shut down in cloudy weather and turns on in sunny weather. Powerful microcontroller used to calculate and evaluate the light intensity form sensor unit, then send instruction to actuator unit. For graceful and accurate angular motion we used the servo actuator system. It's no need additional real time clock to track annual motion and daily motion because it's based on active closed loop system. Our implemented design is more efficient and convenient than other tracker","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129585433","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315109
M. M. H. Sajeeb, Aminur Rahman, Shaila Arif
Due to the gradual reduction of fossil fuel, renewable energy resources have become the next best alternative to meet up the accelerating demand of electricity. Among all kinds of renewable energy resources solar energy is the best suited source of power for the perspective of Bangladesh. Nano grid is a vital element of smart grid which is one of the talked topics around the world facilitating the system reliability with distributed generation. Solar DC Nano grid is a modern renewable technology which can efficiently be used to meet up the power demand for off grid rural areas. In this paper we have represented a rudimentary discussion about Nano grid, its advantages and challenges, all necessary survey data about an installed DC Nano grid in Kushita district and how solar DC Nano grid can be an essential driving element to combat future power demand in rural areas of Bangladesh.
{"title":"Feasibility analysis of solar DC Nano grid for off grid rural Bangladesh","authors":"M. M. H. Sajeeb, Aminur Rahman, Shaila Arif","doi":"10.1109/ICGET.2015.7315109","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315109","url":null,"abstract":"Due to the gradual reduction of fossil fuel, renewable energy resources have become the next best alternative to meet up the accelerating demand of electricity. Among all kinds of renewable energy resources solar energy is the best suited source of power for the perspective of Bangladesh. Nano grid is a vital element of smart grid which is one of the talked topics around the world facilitating the system reliability with distributed generation. Solar DC Nano grid is a modern renewable technology which can efficiently be used to meet up the power demand for off grid rural areas. In this paper we have represented a rudimentary discussion about Nano grid, its advantages and challenges, all necessary survey data about an installed DC Nano grid in Kushita district and how solar DC Nano grid can be an essential driving element to combat future power demand in rural areas of Bangladesh.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124388643","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315088
Shahid Jaman, Minar Mahmud Hossainy, Md Saiful Huque
This paper proposed a conceptual design and economic analysis of a distributed storage based DC micro grid system for rural area electrification of Bangladesh. In this design we has taken an average load consumption about 34.3kWh including the rural household load and irrigation facility with seasonal load variation. After that we have estimated required specification of DC micro grid components such as solar PV, micro grid charge controller, battery, distribution system etc. Moreover, we have also shown the cost analysis of our proposed micro grid system. Cost analysis estimated about 17.80 BDT/kWh electricity cost with seasonal irrigation facility. It is argued that the developmental activity should be chosen in such a way that it matches with the seasonal variation in insolation and load demand may keep the energy cost to a minimum.
{"title":"Distributed storage based DC micro grid: A reliable PV based solution for rural electrification of Bangladesh","authors":"Shahid Jaman, Minar Mahmud Hossainy, Md Saiful Huque","doi":"10.1109/ICGET.2015.7315088","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315088","url":null,"abstract":"This paper proposed a conceptual design and economic analysis of a distributed storage based DC micro grid system for rural area electrification of Bangladesh. In this design we has taken an average load consumption about 34.3kWh including the rural household load and irrigation facility with seasonal load variation. After that we have estimated required specification of DC micro grid components such as solar PV, micro grid charge controller, battery, distribution system etc. Moreover, we have also shown the cost analysis of our proposed micro grid system. Cost analysis estimated about 17.80 BDT/kWh electricity cost with seasonal irrigation facility. It is argued that the developmental activity should be chosen in such a way that it matches with the seasonal variation in insolation and load demand may keep the energy cost to a minimum.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132750357","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315117
M. Murshed, Yeasin Arafat, M. Razzak
Implementation of wind turbines has been increased significantly because of its availability, easy and low cost generation around the world. Meanwhile in Bangladesh wind energy conversion is a very recent concept compared to other renewable energy conversion techniques and yet in many places research is going on to measure and analysis the wind velocity. The primary target of this research is to determine the wind prospects of Teknaf coastal area in Bangladesh by developing a statistical analysis of wind velocity at that region and to propose the design of blades for a low-speed wind turbine using theoretical analysis of power availability and wind velocity at different heights. The design approach can be applied successfully to develop a low-speed wind turbine's pole and blade construction.
{"title":"Design of blades for a low-speed 400W wind turbine suitable for coastal area of Bangladesh","authors":"M. Murshed, Yeasin Arafat, M. Razzak","doi":"10.1109/ICGET.2015.7315117","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315117","url":null,"abstract":"Implementation of wind turbines has been increased significantly because of its availability, easy and low cost generation around the world. Meanwhile in Bangladesh wind energy conversion is a very recent concept compared to other renewable energy conversion techniques and yet in many places research is going on to measure and analysis the wind velocity. The primary target of this research is to determine the wind prospects of Teknaf coastal area in Bangladesh by developing a statistical analysis of wind velocity at that region and to propose the design of blades for a low-speed wind turbine using theoretical analysis of power availability and wind velocity at different heights. The design approach can be applied successfully to develop a low-speed wind turbine's pole and blade construction.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131329868","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315079
Mrinmoy Dey, Maitry Dey, M. Matin, N. Amin
The polycrystalline ultra-thin cadmium telluride (CdTe) is familiar as the potential solar cell material for its higher efficiency, cost-effective, cell stability and clean generation of solar electricity. In this study, a numerical analysis has been performed utilizing AMPS (Analysis of Microelectronic and Photonic Structures) simulator to examine the cell performances (Voc, Jsc, FF and conversion efficiency) of ultra-thin CdTe solar cell. During the research, reduction of CdTe layer was done in the proposed cell and found that 1μm absorber layer is enough for acceptable range for cell conversion efficiency. The possibility of this ultra-thin CdTe absorber layer was examined, as one with 100 nm ZnTe back surface field (BSF) layer to minimize the recombination losses at the back contact and to reduce the barrier height in the valence band of the proposed cell. Higher conversion efficiency of 22.53% (Jsc = 24.28 mA/cm2, FF = 0.875, Voc = 1.06 V) has been achieved with only 0.8 μm of CdTe absorber layer along with 100 nm ZnTe BSF where as conversion efficiency is 18.68% (Jsc = 21.47 mA/cm2, FF = 0.85, Voc = 1.02 V) without BSF layer. Moreover, the proposed CdTe solar cell showed better stability as the normalized efficiency of the proposed cell linearly decreased with the increasing operating temperature at the gradient of -0.16%/°C.
{"title":"Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF","authors":"Mrinmoy Dey, Maitry Dey, M. Matin, N. Amin","doi":"10.1109/ICGET.2015.7315079","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315079","url":null,"abstract":"The polycrystalline ultra-thin cadmium telluride (CdTe) is familiar as the potential solar cell material for its higher efficiency, cost-effective, cell stability and clean generation of solar electricity. In this study, a numerical analysis has been performed utilizing AMPS (Analysis of Microelectronic and Photonic Structures) simulator to examine the cell performances (Voc, Jsc, FF and conversion efficiency) of ultra-thin CdTe solar cell. During the research, reduction of CdTe layer was done in the proposed cell and found that 1μm absorber layer is enough for acceptable range for cell conversion efficiency. The possibility of this ultra-thin CdTe absorber layer was examined, as one with 100 nm ZnTe back surface field (BSF) layer to minimize the recombination losses at the back contact and to reduce the barrier height in the valence band of the proposed cell. Higher conversion efficiency of 22.53% (Jsc = 24.28 mA/cm2, FF = 0.875, Voc = 1.06 V) has been achieved with only 0.8 μm of CdTe absorber layer along with 100 nm ZnTe BSF where as conversion efficiency is 18.68% (Jsc = 21.47 mA/cm2, FF = 0.85, Voc = 1.02 V) without BSF layer. Moreover, the proposed CdTe solar cell showed better stability as the normalized efficiency of the proposed cell linearly decreased with the increasing operating temperature at the gradient of -0.16%/°C.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128651774","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315085
Md Thuhid Ullah, M. H. Uddin, Md Atif Bin Karim, Giasuddin Muhammad Tauseef
Energy crisis is the most critical infrastructure constraint in Bangladesh's economic growth. Limited resources for generation of electricity is one of the major reason behind that. It is happening because of the limitation of technology in the field of electricity. Though renewable energy is introduced, the impact of this new technology is not significant. This is why this paper introduces a mechanism to produce green electricity from human wastage energy. In this mechanism the pressure energy from the movement of human body is used to harvesting electricity using gymnasium bicycle. This paper also presents a field survey on the human and gymnasium at Chittagong city to find out the feasibility of this mechanism. A hardware implementation has been done to produce electricity through the use of gymnasium bicycle. A detailed cost analysis has also been done to find out the economic generation of electricity. Actually the authors are trying to introduce such a mechanism through which the electricity problem of Bangladesh will be reduced significantly.
{"title":"Harvesting green energy from wastage energy of human activities using gymnasium bicycle at Chittagong city","authors":"Md Thuhid Ullah, M. H. Uddin, Md Atif Bin Karim, Giasuddin Muhammad Tauseef","doi":"10.1109/ICGET.2015.7315085","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315085","url":null,"abstract":"Energy crisis is the most critical infrastructure constraint in Bangladesh's economic growth. Limited resources for generation of electricity is one of the major reason behind that. It is happening because of the limitation of technology in the field of electricity. Though renewable energy is introduced, the impact of this new technology is not significant. This is why this paper introduces a mechanism to produce green electricity from human wastage energy. In this mechanism the pressure energy from the movement of human body is used to harvesting electricity using gymnasium bicycle. This paper also presents a field survey on the human and gymnasium at Chittagong city to find out the feasibility of this mechanism. A hardware implementation has been done to produce electricity through the use of gymnasium bicycle. A detailed cost analysis has also been done to find out the economic generation of electricity. Actually the authors are trying to introduce such a mechanism through which the electricity problem of Bangladesh will be reduced significantly.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131708250","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315102
A. Z. Zadidul Karim, Subrata Karmoker, Md. Mizanur Rahman
Among available technologies for energy production from renewable sources, ocean wave energy and tidal power could give a significant contribution to develop a more sustainable energy system. Tidal power is one of the best renewable energy sources in coastal area and becoming popular around the world due to its own facilities. Ocean wave energy can play a vital role for producing electricity as new source of renewable energy to the off-grid power connection in isolated areas, namely Sandwip, in Bangladesh. Ocean wave energy having environmental friendly is the only sustainable solution of secure energy system in coastal area. Bangladesh has a huge potential of tidal power at different locations. It has a long costal area with 2-8 m tidal head/height rise and fall. This height is sufficient enough to produce power. So, tidal power has a bright future in Bangladesh. It can reduce the present energy crisis and improve the social, environmental and economic perspective of Bangladesh. But effective measures on this issue have not been considered sincerely. In this paper we propose a system which can be generated electricity by using amplitude of Ocean wave which may be an effective solution to overcome the recent power crisis in Bangladesh.
{"title":"Electricity generation by using amplitude of Ocean wave","authors":"A. Z. Zadidul Karim, Subrata Karmoker, Md. Mizanur Rahman","doi":"10.1109/ICGET.2015.7315102","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315102","url":null,"abstract":"Among available technologies for energy production from renewable sources, ocean wave energy and tidal power could give a significant contribution to develop a more sustainable energy system. Tidal power is one of the best renewable energy sources in coastal area and becoming popular around the world due to its own facilities. Ocean wave energy can play a vital role for producing electricity as new source of renewable energy to the off-grid power connection in isolated areas, namely Sandwip, in Bangladesh. Ocean wave energy having environmental friendly is the only sustainable solution of secure energy system in coastal area. Bangladesh has a huge potential of tidal power at different locations. It has a long costal area with 2-8 m tidal head/height rise and fall. This height is sufficient enough to produce power. So, tidal power has a bright future in Bangladesh. It can reduce the present energy crisis and improve the social, environmental and economic perspective of Bangladesh. But effective measures on this issue have not been considered sincerely. In this paper we propose a system which can be generated electricity by using amplitude of Ocean wave which may be an effective solution to overcome the recent power crisis in Bangladesh.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133663758","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 : 2015-11-09DOI: 10.1109/ICGET.2015.7315119
Yeasin Arafat, M. Murshed, M. Razzak
The outer rotor permanent magnet alternator (PMA) is superior for small wind turbine system due to its robust, little maintenance and low cost configuration. In this research, the design and performance analysis of a radial flux outer rotor type PMA used for gearless, extremely low-speed, and small capacity wind turbine system has been discussed. The design has been simulated to analyze this PMA. The elementary configuration like material types, magnet types and additional electrical and mechanical parameters are studied, and the performances parameters of PMA are improved by changing these elementary electrical and mechanical parameters or some other related factors such as reducing the cogging effect. Cogging torque has been reduced by employing fractional slot per pole, width of slot opening, mounting of the magnets. Also the slot shape has been custom-made to increase the efficiency. The slot fill factor was improved by using different wire diameter used as winding coil. This improvement has been played a great role to reduce copper losses thereby improving the thermal condition of the slot. Finite element analysis (FEA) method was used to analyze this PMA in order to test the real time performance simulation with loss and cogging torque calculation. By taking all these considerations into account, higher efficiency from the outer rotor arrangement with minimum losses has been achieved.
{"title":"Design and analysis of an outer rotor permanent magnet alternator for low-speed wind turbine","authors":"Yeasin Arafat, M. Murshed, M. Razzak","doi":"10.1109/ICGET.2015.7315119","DOIUrl":"https://doi.org/10.1109/ICGET.2015.7315119","url":null,"abstract":"The outer rotor permanent magnet alternator (PMA) is superior for small wind turbine system due to its robust, little maintenance and low cost configuration. In this research, the design and performance analysis of a radial flux outer rotor type PMA used for gearless, extremely low-speed, and small capacity wind turbine system has been discussed. The design has been simulated to analyze this PMA. The elementary configuration like material types, magnet types and additional electrical and mechanical parameters are studied, and the performances parameters of PMA are improved by changing these elementary electrical and mechanical parameters or some other related factors such as reducing the cogging effect. Cogging torque has been reduced by employing fractional slot per pole, width of slot opening, mounting of the magnets. Also the slot shape has been custom-made to increase the efficiency. The slot fill factor was improved by using different wire diameter used as winding coil. This improvement has been played a great role to reduce copper losses thereby improving the thermal condition of the slot. Finite element analysis (FEA) method was used to analyze this PMA in order to test the real time performance simulation with loss and cogging torque calculation. By taking all these considerations into account, higher efficiency from the outer rotor arrangement with minimum losses has been achieved.","PeriodicalId":404901,"journal":{"name":"2015 3rd International Conference on Green Energy and Technology (ICGET)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116115550","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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