发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
Generator design and characteristics in direct-link wave power generating system considering appearance probability of waves 考虑波浪出现概率的直连式波浪发电系统发电机设计及特性
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477259
M. Sanada, Y. Inoue, S. Morimoto
{"title":"Generator design and characteristics in direct-link wave power generating system considering appearance probability of waves","authors":"M. Sanada, Y. Inoue, S. Morimoto","doi":"10.1109/ICRERA.2012.6477259","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477259","url":null,"abstract":"The energy density of wave power is higher than some renewable energy sources such as wind and solar energy. However, because waves have an irregular reciprocating motion, it is difficult to convert wave power into electricity, and this has restricted the widespread use of wave power. In this paper, a new mechanism to convert wave power into electricity is proposed. It is referred to as a “direct-link” mechanism consisting of a buoy, rack, and pinion. Because of its simple load transfer path, it is expected that the energy conversion efficiency is higher than that of the usual wave power conversion systems. Surface permanent magnet synchronous generators for the proposed system are designed with different numbers of poles. The electrical output characteristics considering the appearance probability of the waves in Shionomisaki are calculated by a dynamic simulation. It is shown that the conversion efficiency of the proposed system is remarkably improved from that of a conventional system.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"18 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131450978","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: 6
In-space transportation of a solar power satellite using a hall thruster propulsion system 利用霍尔推力器推进系统的太阳能卫星的太空运输
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477451
Y. Ito, M. Nakano, T. Schonherr, S. Cho, K. Komurasaki, H. Koizumi
{"title":"In-space transportation of a solar power satellite using a hall thruster propulsion system","authors":"Y. Ito, M. Nakano, T. Schonherr, S. Cho, K. Komurasaki, H. Koizumi","doi":"10.1109/ICRERA.2012.6477451","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477451","url":null,"abstract":"A feasibiity study of solar power satellite (SPS) in-space transportation using a Hall thruster propulsion system was conducted based on cost evaluation. The transportation scenario was optimized through the cost evaluation: the choice of reusing or disposing orbit transfer vehicle (OTV), and power of propulsion system. From the result, the case of reusing OTVs was superior to the case of disposing them because the OTVs' manufacturing cost is predominant in the total cost. In addition, the power had only limited influence on the cost. In order to achieve the target cost of $3.75 billion (300 billion yen) from LEO to GEO including propellant launch cost from Earth to LEO, further improvements are required, and related desirable innovations are discussed.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"32 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":"133119717","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: 7
Surge snubber design for high power-density DC-DC converters in HVDC power distribution systems 高压直流配电系统中高功率密度DC-DC变换器的浪涌缓冲器设计
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477261
K. Domoto, T. Ninomiya, Y. Ishizuka, R. Simanjorang, H. Yamaguchi, S. Abe, M. Kaga
{"title":"Surge snubber design for high power-density DC-DC converters in HVDC power distribution systems","authors":"K. Domoto, T. Ninomiya, Y. Ishizuka, R. Simanjorang, H. Yamaguchi, S. Abe, M. Kaga","doi":"10.1109/ICRERA.2012.6477261","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477261","url":null,"abstract":"In an isolated DC-DC converter utilized in the HVDC power distribution system, a large surge voltage occurs across the secondary-side diodes due to the transformer's leakage inductance, and then the diodes with a large withstand voltage are required. However, those diodes cause a lot of power loss. In this paper, a simple surge snubber with prominent surge suppression capability is examined, and the surge-voltage evaluation through the analysis using the high-frequency equivalent circuits, which is followed by the experimental confirmation. Furthermore, the the optimum design of its surge-snubber capacitor is presented.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"92 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":"132314076","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
Comparative study for using chlorophyll extracted from green leaves for solar cell fabrication after treatment with other materials 绿叶叶绿素与其他材料处理后用于太阳能电池制造的比较研究
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477353
M. Badran, B. Badran
{"title":"Comparative study for using chlorophyll extracted from green leaves for solar cell fabrication after treatment with other materials","authors":"M. Badran, B. Badran","doi":"10.1109/ICRERA.2012.6477353","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477353","url":null,"abstract":"A solar cell or photovoltaic cell is a device which generates electricity directly from visible light. However, the Gratzel solar cells' efficiency is fairly low. So, it costs expensive according to other energy resources products. There is several factors affect gratzel solar cell efficiency which formed from chlorophyll. This research work is a comparative study between Grätzel chlorophyll solar cells and chlorophyll solar cells extracted from different plants after different types of treatment to enhance its efficiency, current, voltage and durability. We aim that, this study has moved a step closer to overcoming one of the troubles to manufacture a low cost solar cell from plant with low price, high voltage, current and long durability","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"36 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":"117211062","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: 0
Microgrid using parallel processing uninterruptible power supply 微电网采用并行处理的不间断电源
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477407
T. Ushirokawa, K. Hirose, Y. Okui, K. Yukita, K. Ichiyanagi, H. Takabayashi
{"title":"Microgrid using parallel processing uninterruptible power supply","authors":"T. Ushirokawa, K. Hirose, Y. Okui, K. Yukita, K. Ichiyanagi, H. Takabayashi","doi":"10.1109/ICRERA.2012.6477407","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477407","url":null,"abstract":"The effectiveness of two patterns for operating a self-sufficient (i.e., smart) microgrid was investigated. One pattern minimizes connection time to the utility power grid, and the other minimizes the peak load drawn from the utility power grid and maximizes battery life. Field testing of a demonstration system showed that it can switch between modes (island, charge, and backup) and continue to supply power to the load without interruption. Simulation and field testing showed that the prioritize island mode pattern is advantageous in terms of minimizing the time spent in charge mode while the prioritize steady use of utility power pattern is advantageous in terms of minimizing the peak utility power received and the battery state of charge range.","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":"115445573","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
System design and control algorithm for a 150W portable fuel cell power pack 150W便携式燃料电池电源组的系统设计与控制算法
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477283
Dong-Gyun Woo, Yun-Sung Kim, Dongmyoung Joo, Hong-Joo Kang, Byoung-Kuk Lee
{"title":"System design and control algorithm for a 150W portable fuel cell power pack","authors":"Dong-Gyun Woo, Yun-Sung Kim, Dongmyoung Joo, Hong-Joo Kang, Byoung-Kuk Lee","doi":"10.1109/ICRERA.2012.6477283","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477283","url":null,"abstract":"Fuel cell has a lot of advantages like zero emission, high efficiency, little noise, and extremely low vibration. So, it is considered as a suitable alternative source for the portable power supply. However, it needs to be made up for the weak points such as high cost and slow dynamic response. As a representative useful solution to remedy fuel cell's shortcomings, battery is being utilized in various hybrid systems. In this paper, five fuel cell-battery hybrid system structures are analyzed in order to find the optimal structure for a 150W portable fuel cell power pack. Then, each main part is designed to achieve compact size, simple control, high efficiency, and low cost. Also, this paper suggests an automatic mode change algorithm considering the state of fuel cell, battery, and load. Experimental results show stable mode changes and the performance of a 150W prototype.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"1 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":"115500582","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
Performance verification of new active islanding detection methods for PV system by simulation 光伏系统主动孤岛检测新方法的性能仿真验证
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477456
Y. Yoshida, K. Fujiwara, Y. Ishihara, H. Suzuki
{"title":"Performance verification of new active islanding detection methods for PV system by simulation","authors":"Y. Yoshida, K. Fujiwara, Y. Ishihara, H. Suzuki","doi":"10.1109/ICRERA.2012.6477456","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477456","url":null,"abstract":"We propose a novel active islanding prevention method for large penetration of photovoltaic (PV) systems by detecting the harmonic impedance change, and have developed the simulation models for PV inverters which have new active methods by using PSCAD/EMTDC. We also study the performance of islanding detection functions in non detection zone (NDZ) by simulation analysis and clarify the effectiveness of the proposed method.","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":"115298130","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
Hydrogenation of Si(110) surface due to hydrogen plasma exposure, investigated with in-situ MIR-IRAS 原位MIR-IRAS研究了氢等离子体暴露导致Si(110)表面的氢化
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477364
Y. Takmi, Y. Takaki, M. Shinohara, Y. Matsuda, H. Fujiyama
{"title":"Hydrogenation of Si(110) surface due to hydrogen plasma exposure, investigated with in-situ MIR-IRAS","authors":"Y. Takmi, Y. Takaki, M. Shinohara, Y. Matsuda, H. Fujiyama","doi":"10.1109/ICRERA.2012.6477364","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477364","url":null,"abstract":"Hydrogenation of Si(110) surface due to hydrogen plasma was investigated, using in-situ infrared spectroscopy in multiple internal reflection geometry (in-situ MIR-IRAS). The amorhpous layer was formed. Especially, the SiH2 components were finally formed in the amorphous layer. The formation of the SiH2 is performed with 0.5-order reaction, in a comparion with the hydrogen exposure time. It is suggested that two hydrogen atoms are required to form SiH2.","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":"114657464","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
Proposal of energy-saving control method of air turbine spindle and evaluation of its energy consumption using air power meter 提出了空气涡轮主轴的节能控制方法，并用空气功率计对其能耗进行了评价
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477390
T. Kato, G. Higashijima, T. Yazawa, T. Otsubo, Y. Nozaki, K. Tanaka
{"title":"Proposal of energy-saving control method of air turbine spindle and evaluation of its energy consumption using air power meter","authors":"T. Kato, G. Higashijima, T. Yazawa, T. Otsubo, Y. Nozaki, K. Tanaka","doi":"10.1109/ICRERA.2012.6477390","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477390","url":null,"abstract":"This research proposes a quick, robust and energy-saving rotation control method for the air turbine spindle used in ultra-precision machining. We developed a high-precision, quick-response pneumatic pressure regulator and applied it to the rotation feedback control of an air turbine spindle. We also set a disturbance force observer in the feedback control system to avoid changes of the rotation speed due to disturbance forces imparted to the air turbine spindle. The effectiveness of the proposed method was demonstrated through a rotation control experiment and a disturbance force giving experiment. We evaluated the energy consumption of the air turbine spindle using an air power meter. Compared with the conventional method, the superiority of the proposed method is clearly shown in terms of quick response, robustness, and low energy consumption.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"12 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":"114699534","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: 0
A secondary-side phase-shifted zero voltage and zero current full-range soft-switching PWM DC-DC converter for EV battery chargers 一种用于电动汽车电池充电器的二次侧移相零电压零电流全量程软开关PWM DC-DC变换器
2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI: 10.1109/ICRERA.2012.6477257
K. Akamatsu, T. Mishima, M. Nakaoka
{"title":"A secondary-side phase-shifted zero voltage and zero current full-range soft-switching PWM DC-DC converter for EV battery chargers","authors":"K. Akamatsu, T. Mishima, M. Nakaoka","doi":"10.1109/ICRERA.2012.6477257","DOIUrl":"https://doi.org/10.1109/ICRERA.2012.6477257","url":null,"abstract":"A new prototype of a secondary-side phase shifted (SPS) soft switching PWM dc-dc converter suitable for electric vehicle (EV) battery charging systems is presented in this paper. In the proposed dc-dc converter, soft switching commutations are achievable from full load to no load by utilizing parasitic inductances of the high frequency (HF) transformer. Beside that, no circulating current in both of the primary and secondary side full-bridge circuits, consequently the related idling power can be minimized. The wide soft switching principle is described in details. The essential performance and its practical effectiveness of the proposed dc-dc converter are originally demonstrated in experiments by a 1kW-50 kHz prototype.","PeriodicalId":239142,"journal":{"name":"2012 International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"34 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":"124811650","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信