This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. The project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. Several turbines where selected for testing at the National Wind Technology Center (NWTC) as a part of the Small Wind Turbine Independent Testing project. Duration testing was one of up to five tests that could be performed on the turbines. Other tests included power performance, safety and function, noise, and power quality. Cascade Engineering, of Grand Rapids, Michigan, distributor of the Renewable Devices SWIFT turbine in North America, was the recipient of the DOE grant and provided the turbine for testing. The test equipment included a grid-connected SWIFT wind turbine mounted on a 13.7 meter (45-ft) free standing monopole. The system was installed by the NWTC Site Operations group with guidance and assistance from Cascade Engineering.

关键词：风能;风力发电机;时间试验;电能质量;可再生能源

查看摘要 索取原文[55页]

With different element models and parameters in power system,the transient stability analysis results are also different,especially the model of generator and load.Based on the actual parameters of Hunan power grid,this paper builds the synthesis load rnodel of the distribution network with small hydropower considered,and then the Hunan simulation network can also be got.Using PSASP,analyses the transient stability of Hunan power system with distributed small hydropower under different operation modes systematically and comprehensively.Through an overall check of the stability level in each Hunan area,and then compared with the analysis results of Hunan power grid based on the currently used load model,the influences of the distributed small hydropower on the safe and stable operation of the large power network are summarized.

关键词：电力系统；分布式发电；小水电；暂态稳定；负荷建模；PSASP

查看摘要 索取原文[6页]

Blade testing is required to meet wind turbine design standards, reduce machine cost, and reduce the technical and financial risk of deploying mass-produced wind turbine models. NREL's National Wind Technology Center (NWTC) in Colorado is the only blade test facility in the U.S. capable of performing full-scale static and fatigue testing of multi-megawatt-scale wind turbine blades. Rapid growth in wind turbine size over the past two decades has outstripped the size capacity of the NWTC blade test facility leaving the U.S. wind industry without a suitable means of testing blades for large land-based and offshore turbines. This CRADA will develop and commercialize testing technologies and test equipment, including scaling up, value engineering, and testing of equipment to be used at blade testing facilities in the U.S. and around the world.

关键词：风能；风电；风力涡轮机；涡轮叶片

查看摘要 索取原文[9页]

Determining economically viable locations for solar energy projects depends on many factors, including the level of the solar energy resource, land ownership and use, potential environmental impacts, and grid connectivity. This forum session will highlight public and freely accessible Web-based mapping applications sponsored by the U.S. Department of Energy (DOE) to aid in analyzing solar energy project siting decisions. We will discuss each of the Web applications and their associated projects and then demonstrate the tools.

关键词：太阳能;环境影响;电网连接;土地利用

查看摘要 索取原文[8页]

The total inertia stored in all rotating masses that are connected to power systems, such as synchronous generations and induction motors, is an essential force that keeps the system stable after disturbances. Typically, inertias respond to disturbances voluntarily, without any control actions; however, several types of renewable generation, particularly those with power electronic interfaces, have an inertial response governed by a control function. To ensure bulk power system stability, there is a need to estimate the equivalent inertia available from a renewable generation plant. An equivalent inertia constant analogous to that of conventional rotating machines can be used to provide a readily understandable metric.

关键词：风力发电站;发电机;转动惯量;电力系统;可再生能源;

查看摘要 索取原文[8页]

This report focuses on four technology revolutions that are here today. In the last five years they have achieved dramatic reductions in cost1 and this has been accompanied by a surge in consumer, industrial and commercial deployment. Although these four technologies still represent a small percentage of their total market (e.g. electricity, cars and lighting), they are growing rapidly. The four key technologies this report focuses on are: Onshore wind power; Polysilicon photovoltaic modules; LED lighting; and Electric vehicles.

关键词：风能；太阳能；风力发电；太阳能发电

查看摘要 索取原文[14页]

《84号文》传递的改革深度、力度超越了“十一五”以来任何一次油气产业改革。2014年2月24日，国家能源局公布《油气管网设施公平开放监管办法（试行）》（国能监管〔2014〕84号，以下简称《84号文》），立即引起国内外、行业内外和社会各界的高度关注和热议，纷纷期望《84号文》的实施能够为我国统一的油气市场繁荣、产业发展带来新机遇，为非常规油气发展，特别是新兴油气企业创造宽松条件，也翘望油气管网设施分离工作能够进一步加快。

关键词：84号文；油气管网；设施；监管办法

查看摘要 索取原文[7页]

This article provides information on smart grid and smart measurement systems with a special focus on the advantages of their implementation as well as concerns present at the stage of design and component selection. The tests conducted on a selected group of measurement devices used in smart grid systems made it possible to compare power losses characteristic for these devices. In the analysis presented below, both classic inductive meters and electronic meters with various communication modems were used.

关键词：智能电网；智能计量系统；电子仪表；调制解调器

查看摘要 索取原文[19页]

Recent and anticipated trends indicate that renewable resources, particularly wind and solar energy, will provide a growing contribution to the U.S. and global power systems in the coming decades. These resources are variable and uncertain by nature, and their impacts on system expansion and operation need to be properly accounted for in electric system models. To this end, we introduce a new capacity expansion model, the Resource Planning Model (RPM), with high spatial and temporal resolution that can be used for mid- and long-term scenario planning of regional power systems. RPM endogenously and dynamically considers grid integration of renewable resources, including transmission and interconnection availability and costs, renewable resource limits and output characteristics, and dispatch options for conventional generators, in its optimal generator and transmission decision-making. As an hourly chronological model with a highly discretized regional structure, RPM provides a framework where various future scenarios can be explored while ensuring that the scenarios include many aspects of grid reliability. Although the structure of RPM was designed to be adaptable to any geographic region, here we describe an initial version of the model adapted for the power system in Colorado. We present example scenario results from this first version of RPM, including an example of a 30-by-2020 renewable electricity penetration scenario. Under the assumptions used, the preliminary scenario analysis demonstrates that wind technologies are the dominant contributors to this 30-by-2020 renewable electricity scenario and that renewable generation largely displaces natural gas. This displacement results in annual carbon dioxide (CO2) emission reductions of approximately 12. We find that under the least-cost deployment solution from the model, new wind capacity is largely deployed in the north-central and southeastern regions of Colorado and utility-scale solar capacity is largely deployed in the Front Range urban corridor, along with northwestern and south-central Colorado regions.

关键词：电力系统；智能电网；电力传输；可再生能源；

查看摘要 索取原文[69页]

The piezoelectric effect is a phenomenon where strain on a piezoelectric crystal structure causes potential difference at its ends. By merging piezoelectric materials and microelectromechanical systems (MEMS), mechanical vibration could cause the necessary displacement in MEMS to create a potential difference that could be used to power electronic devices. Developing new sustainable energy sources and using energy more efficiently is at the forefront of several research initiatives and is a clear priority for the Department of the Navy s strategic planning. This thesis aims to design a vibrational energy harvesting MEMS device to harness vibrational waste energy with the goal of producing power for naval applications. The development and widespread use of vibrational harvesting MEMS would aid the effort to meet each of these goals in the Department of the Navy. Any shore based, seagoing, or expeditionary mechanical platform could serve as a kinetic energy source for vibration energy harvesting MEMS. This thesis investigates the physics, materials, design, optimization, and microfabrication process in the creation of such a device. Time-dependent finite element models for two designs have been developed, simulating electrical power output. Microfabrication processes for the designs have also been developed.

关键词：电子科学技术；微机电系统；振动；能源；有限元分析；线束；压电材料

查看摘要 索取原文[75页]