2013 IEEE Energytech最新文献_第2页

Predicting the impact of panel orientation and tracking on PV daily energy harvest 预测面板朝向和跟踪对光伏日能量收获的影响

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645344

W. Grady, H. Thomas

{"title":"Predicting the impact of panel orientation and tracking on PV daily energy harvest","authors":"W. Grady, H. Thomas","doi":"10.1109/ENERGYTECH.2013.6645344","DOIUrl":"https://doi.org/10.1109/ENERGYTECH.2013.6645344","url":null,"abstract":"The benefits of taking solar radiation data measurements over extended periods of months or years include 1. predicting the expected daily harvest at potential solar farm sites, and 2. determining if existing PV installations are working properly for the given solar conditions. If radiation measurements are separated into two components, i.e., sky without the beam of the sun, and the beam of the sun, then the incident solar power on a flat surface with any azimuth and tilt can be estimated with reasonable accuracy. This paper shows daily harvest estimates made from twelve months of solar radiation measurements at a desert site in West Texas near the town of Toyah, latitude 31°. The key findings are. The best all-year fixed tilt angle for a south-facing panel is 30° (i.e., the “use latitude tilt” rule). Fixed tilt adjustments at equinoxes to 10° and 50° adds 5% to the annual daily energy harvest. South-facing, single-axis tracking with 25° fixed-tilt provides 31% more annual energy than a 30° fixed mount. Double-axis tracking provides 38% more annual energy than a 30° fixed mount. Double-axis tracking is only marginally better than single-axis tracking (i.e., annual energy increase of 38% compared to 31%).","PeriodicalId":154402,"journal":{"name":"2013 IEEE Energytech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128971088","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

Seismic centrifuge modelling of offshore wind turbine with tripod foundation 基于三脚架基础的海上风力发电机地震离心机建模

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645350

Hao Yu, X. Zeng, Xuefei Wang

引用次数: 14

A controller for electrification of vehicles by direct methanol fuel cell 一种直接甲醇燃料电池车辆电气化控制器

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645281

K. Żurawski, A. Sajadi

引用次数: 0

AlGaN/GaN HEMTs for energy efficient systems 用于节能系统的AlGaN/GaN hemt

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645294

R. Gaska, G. Simin, M. Shur

引用次数: 1

Automotive design challenges for wide-band-gap devices used in high temperature capable, scalable power vehicle electronics 用于高温、可扩展功率汽车电子的宽带隙器件的汽车设计挑战

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645298

Andrew F. Pinkos, Yuanbo Guo

{"title":"Automotive design challenges for wide-band-gap devices used in high temperature capable, scalable power vehicle electronics","authors":"Andrew F. Pinkos, Yuanbo Guo","doi":"10.1109/ENERGYTECH.2013.6645298","DOIUrl":"https://doi.org/10.1109/ENERGYTECH.2013.6645298","url":null,"abstract":"Magna Electronics, an automotive Tier 1 Supplier, has been actively involved in the application and production of EV and Hybrid electric drive motors, inverters, electronic, and powertrain controllers. The Ford Focus Electric vehicle program includes all of these products and stand-alone inverters for the Fisker Karma, plus assorted components for other global customers. Incorporating advanced technologies into automotive power electronics remains in the forefront for next generation inverters. Smart product development will satisfy an emerging market for achieving high power density, high temperature capability, and high efficiency inverters with Wide Band Gap (WBG) devices utilizing both GaN and SiC in diodes and switches. It is essential that designs for motor power inverters, DC/DC converters, and in-vehicle chargers be based on a modular, scalable platform that will address the needs of electric and hybrid electric vehicles across a wide range of power requirements. The designs must meet objectives which are not new but need restating: Achieve lower cost targets (lower component and system costs); Develop new component technologies to meet high temperature and high power density requirements (WBG devices, electronics, bulk capacitor); Design of components and system architecture to meet scalability goals; Improve manufacturability of sub-system components These system design challenges will trickle down to component suppliers and, in particular the WBG community. Exposure to these attributes early in the component development process will speed up innovative automotive product development.","PeriodicalId":154402,"journal":{"name":"2013 IEEE Energytech","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126501307","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: 16

The development of a tip-fan wind turbine mathematical model 顶扇式风力机数学模型的建立

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645356

J. A. AL-Nouman, S. Ranade

引用次数: 0

Semiconductor manufacturing for clean energy economy 清洁能源经济的半导体制造

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645351

R. Singh, K. Shenai, G. F. Alapatt, S. M. Evon

引用次数: 3

Spatio-temporal wind variability in complex terrain 复杂地形下的时空风变率

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645353

R. Belu, D. Koracin

{"title":"Spatio-temporal wind variability in complex terrain","authors":"R. Belu, D. Koracin","doi":"10.1109/ENERGYTECH.2013.6645353","DOIUrl":"https://doi.org/10.1109/ENERGYTECH.2013.6645353","url":null,"abstract":"Spatial and temporal characteristics of the wind velocity in complex terrain, relevant to wind energy resources were investigated in this study. Data from one 80 m and four 50 m towers located within a range of 200 km in western Nevada, U.S., operated from August 2003 to March 2008 were used in the analysis. The average multi-annual wind speed did not show significant increase trends with increased elevation, the differences are mainly governed by the complexity of the topography including local circulations and channeling. Due to a slower increase of the standard deviation of the wind speed compared to the increase of the average wind speed, the turbulence intensity slowly decreased with an increase of the average wind speed. The wind speed was modeled using the Weibull distribution, while the wind direction was modeled using the von Mises distribution. In spite of differences in the basic wind speed statistics, the auto- and cross-correlations show a strong coherence between the wind speed and direction with slowly decreasing amplitude of the multi-day periodicity with increasing lag periods. A non-zero centerline of the diurnal component in the autocorrelation function indicated a possible long-term periodicity. Besides a pronounced diurnal periodicity at all locations, the spectral analysis showed significant annual periodicity with similar characteristics at all five locations.","PeriodicalId":154402,"journal":{"name":"2013 IEEE Energytech","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121390679","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

Diode-clamped multilevel converter topology for battery cells charging applications 用于电池充电应用的二极管箝位多电平转换器拓扑结构

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645309

A. Saha, Y. Sozer

引用次数: 2

Development of a Li ion battery safety risk assessment tool 锂离子电池安全风险评估工具的开发

2013 IEEE Energytech Pub Date : 2013-05-21 DOI: 10.1109/ENERGYTECH.2013.6645308

Jaesik Chung

引用次数: 3