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2012 International Conference on Renewable Energy Research and Applications (ICRERA)最新文献

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Power electronics for renewable energy systems: Wind turbine and photovoltaic systems 用于可再生能源系统的电力电子器件:风力涡轮机和光伏系统
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477249
U. Choi, K. B. Lee, Frede Blaabjerg
{"title":"Power electronics for renewable energy systems: Wind turbine and photovoltaic systems","authors":"U. Choi, K. B. Lee, Frede Blaabjerg","doi":"10.1109/ICRERA.2012.6477249","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477249","url":null,"abstract":"The use of renewable energy sources are increased because of the depletion of natural resources and the increasing pollution level from energy production. The wind energy and the solar energy are most widely used among the renewable energy sources. Power electronics is needed in almost all kinds of renewable energy system. It controls the renewable source and interfaces with the load effectively, which can be grid-connection or working in stand-alone mode. In this paper, overview of wind and photovoltaic energy systems are introduced. Next, the power electronic circuits behind the most common wind and photovoltaic configurations are discussed. Finally, their controls and important requirements for grid connection are explained.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125867841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 37
Voltage stability assessment of photovoltaic energy systems with voltage control capabilities 具有电压控制能力的光伏能源系统电压稳定性评估
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477437
M. Aly, M. Abdel-Akher, Z. Ziadi, T. Senjyu
{"title":"Voltage stability assessment of photovoltaic energy systems with voltage control capabilities","authors":"M. Aly, M. Abdel-Akher, Z. Ziadi, T. Senjyu","doi":"10.1109/ICRERA.2012.6477437","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477437","url":null,"abstract":"This paper studies the impact of large-scale PV generation, up to 50% penetration level, on distribution system voltage regulation and voltage stability. The system voltage profiles are computed using power-flow calculations with load variation of a 24-hour time scale. The voltage stability is examined at different times of the day using a developed continuation power-flow method with demand as continuation parameter and up to the maximum loading conditions. The load-flow analysis implemented for both voltage regulation and voltage stability analysis is performed by using the forward/backward sweep method. The secant predictor technique is developed for predicting the node voltages which are then corrected using the load flow solver. Three models of the PV interface inverter are implemented in this study with full set of data representing environmental conditions. The voltage profiles are regulated using the PV interface inverters which support reactive power at unavailability of sun light. The available inverter capacity is utilized for regulating the system node voltages. The most possible scenarios of system voltage collapse are investigated at different times of the day. The developed methods and models are used to assess the performance of a 33-bus radial distribution feeder with high level of PV penetration. The results show that the PV interface inverters have to be designed to operate for reactive power support in order to improve voltage profile, secure power systems operation, and increase the lifetime of the online tap changing transformers.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125436780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Digital controlled integral gain switchover method DC-DC converter 数字控制积分增益转换方法DC-DC变换器
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477317
F. Kurokawa, S. Higuchi
{"title":"Digital controlled integral gain switchover method DC-DC converter","authors":"F. Kurokawa, S. Higuchi","doi":"10.1109/ICRERA.2012.6477317","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477317","url":null,"abstract":"The purpose of this paper is to proposed digital controlled integral gain switchover method dc-dc converter. The integral coefficient changes for the continuous current mode(CCM) and discontinuous current mode(DCM). The integral coefficient is changed by the reactor current detection. The integral coefficient changes in the CCM using the average value of reactor current. It is confirmed that the regulation characteristics are improved. Moreover, this paper discusses the transient response of the proposed method. As a result, the transient response of proposed method shows more excellent results than the conventional methods.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126634920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Analysis of a segment type switched reluctance generator for wind power generation 风力发电用分段式开关磁阻发电机分析
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477467
T. Iwanaga, S. Fukumoto, T. Higuchi, Y. Yokoi, T. Abe
{"title":"Analysis of a segment type switched reluctance generator for wind power generation","authors":"T. Iwanaga, S. Fukumoto, T. Higuchi, Y. Yokoi, T. Abe","doi":"10.1109/ICRERA.2012.6477467","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477467","url":null,"abstract":"The authors proposed a novel segment type reluctance generator (RG) and presented the experimental performance. It had similar induced voltage to the usual three phase synchronous generator, but the efficiency was low. This paper presents a novel segment type switched reluctance generator (SRG) to improve the efficiency and describes its FEM analysis for wind power generation. The performance is compared with the segment type RG.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122643695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Development of solar charging system for plug-in hybrid electric vehicles and electric vehicles 插电式混合动力汽车和电动汽车太阳能充电系统的开发
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477383
N. Kawamura, M. Muta
{"title":"Development of solar charging system for plug-in hybrid electric vehicles and electric vehicles","authors":"N. Kawamura, M. Muta","doi":"10.1109/ICRERA.2012.6477383","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477383","url":null,"abstract":"In January 2009, Toyota City was chosen as Eco-Model City for the realization of low-carbon society. As a transport initiative for an Eco-Model City, Toyota City has installed charging facilities that utilize solar energy in order to promote the usage of eco-cars such as plug-in hybrid electric vehicles. The new solar charging system for Toyota City that combines the solar power storage unit with commercial electricity has been developed.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122862948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Single phase grid interactive PV system with MPPT capability based on type-2 fuzzy logic systems 基于2型模糊逻辑系统的单相并网交互式光伏系统
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477335
N. Altin
{"title":"Single phase grid interactive PV system with MPPT capability based on type-2 fuzzy logic systems","authors":"N. Altin","doi":"10.1109/ICRERA.2012.6477335","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477335","url":null,"abstract":"In this study, simulation of the single phase grid interactive photovoltaic system is proposed. The proposed system consists of a maximum power point tracking boost converter and a grid interactive voltage source inverter. Interval type-2 fuzzy logic controller is used to track the maximum power point of photovoltaic arrays. Photovoltaic supplied DC electric energy is inverted to AC and imported to the grid via voltage source grid interactive inverter. PI current controller was used for the production of switching pattern of the grid interactive inverter. LCL type filter is used at the output of the inverter to filter switching noise. Simulation studies are carried out by MATLAB/Simulink. The simulation results show that, proposed maximum power point tracking algorithm has fast transient response and it is especially suitable for fast changing environmental conditions. Also inverter output current is in phase with line voltage and current harmonics of the inverter is in the limits of international standards (>5%).","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129541898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
A novel compact single phase inverter using transformer-linked interleaved flyback converter 一种新型紧凑型单相逆变器，采用变压器连接的交错反激变换器
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477476
Y. Kanazawa, M. Yamamoto
{"title":"A novel compact single phase inverter using transformer-linked interleaved flyback converter","authors":"Y. Kanazawa, M. Yamamoto","doi":"10.1109/ICRERA.2012.6477476","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477476","url":null,"abstract":"This paper presents a single phase inverter for the use of transformer-linked interleaved flyback converter. Compared with the core size of conventional type and proposed type flyback converter, the compact and light weight performance of the core are realizable. The power conversion system to propose comprises a flyback converter and a single phase inverter. Since the smoothing capacitor between a flyback converter and a single phase inverter is transposed to a film capacitor in a proposal system. It can realize compact and light weight performance. Furthermore, a proposal system can also reduce the switching loss of a single phase inverter compared with a conventional system.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129673758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Effect of fuel mass distribution on ethanol combustion in diesel engine 柴油发动机燃料质量分布对乙醇燃烧的影响
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477397
S. Yamamoto, D. Sakaguchi, H. Ueki, M. Ishida
{"title":"Effect of fuel mass distribution on ethanol combustion in diesel engine","authors":"S. Yamamoto, D. Sakaguchi, H. Ueki, M. Ishida","doi":"10.1109/ICRERA.2012.6477397","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477397","url":null,"abstract":"A laser 2-focus velocimeter (L2F) has been applied for measurements of velocity and size of droplets in the dense region of diesel fuel spray under the atmospheric pressure condition. The fuel mass distribution in the spray obtained by the measurement was compared with the one simulated by using 3D-CFD code KIVA-3V. The radial velocity of spray droplets near the injector nozzle in the KIVA-3V code was changed to reproduce the measured fuel mass distribution. The combustion simulations of tetradecane (C14H30) and Et20, which consists of 80% tetradecane and 20% ethanol by mass, were conducted by using both original and modified KIVA-3V codes. It was found that the simulation results of heat release rate and ignition delay period remained almost unchanged even though the mass distribution was changed. However, the predicted amount of soot formation simulated by using original KIVA-3V code was different from that simulated by using modified KIVA-3V code in both of tetradecane and Et20 combustion simulations.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129181003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A new digital soft-start characteristics for current mode DC-DC convertert 一种新的电流型DC-DC转换器的数字软启动特性
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477278
F. Kurokawa, S. Sagara
{"title":"A new digital soft-start characteristics for current mode DC-DC convertert","authors":"F. Kurokawa, S. Sagara","doi":"10.1109/ICRERA.2012.6477278","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477278","url":null,"abstract":"This paper presents a new soft-start method for the current mode digital control dc-dc converter. For the soft-start operation, it is important to detect the load current. In the analog control method, the fixed parameter of the soft-start circuit must be set. In the proposed digital control in the current mode control, the load resistor can be calculated with the output voltage and output current. The optimal upper limit of the digital feedback can be decided by load resistor value. Compared with the optimal upper limit to the digital feedback value, the digital value of the switching signal is determined to prevent the inrush current and overshoot of output voltage. It is confirmed that the proposed digital control method has superior soft-start characteristics from the simulation results.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123861397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Influence of wind conditions on siting, design and performance considerations for offshore wind turbines in the Gulf of Mexico region 墨西哥湾地区风力条件对海上风力涡轮机选址、设计和性能考虑的影响
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477340
F. Wendt, K. Lo, S. S. Wang
{"title":"Influence of wind conditions on siting, design and performance considerations for offshore wind turbines in the Gulf of Mexico region","authors":"F. Wendt, K. Lo, S. S. Wang","doi":"10.1109/ICRERA.2012.6477340","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477340","url":null,"abstract":"In this paper Gulf of Mexico wind conditions are analyzed to distinguish suitable regions for wind farm development. A turbine merit rating parameter is introduced to evaluate the combined effects of rotor size, turbine rating and economical boundary conditions. An analytical approach is then taken to match local site conditions with a suitable wind turbine rating and rotor size configuration. Hurricane extreme wind data, annual wind speed distributions and environmental restrictions are considered to identify shallow water areas, suitable for the operation of offshore wind turbines.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123880239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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