Effective storage of hydrogen presents one of the most significant technical gaps to successful implementation of the hydrogen economy, particularly for transportation applications. Amine boranes, such as ammonia borane H3NBH3 and ammonia triborane H3NB3H7, have been identified as promising, high-capacity chemical hydrogen storage media containing potentially readily released protic (N-H) and hydridic (B-H) hydrogens. At the outset of our studies, dehydrogenation of ammonia borane had been studied primarily in the solid state, but our DOE sponsored work clearly demonstrated that ionic liquids, base-initiators and/or metal-catalysts can each significantly increase both the rate and extent of hydrogen release from amine boranes under moderate conditions. Our studies also showed that depending upon the activation method, hydrogen release from amine boranes can occur by very different mechanistic steps and yield different types of spent-fuel materials. The fundamental understanding that was developed during this grant of the pathways and controlling factors for each of these hydrogen-release mechanisms is now enabling continuing discovery and optimization of new chemical-hydride based hydrogen storage systems.

关键词：储氢；胺硼烷脱氢催化剂；氢化物

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The Bureau of Ocean Energy Management (BOEM) hosted this workshop to engage with European scientists and regulators who have experience in offshore wind energy projects. The goal of this workshop was for BOEM to learn from the European experience with offshore wind development about the types of information that should be gathered during site assessment and characterization activities that best informs decisions about the siting of offshore wind facilities and potential mitigation measures. Three areas of particular interest were the focus of this workshop – birds, benthic habitats, and archaeology. These areas were selected because of the timeliness with respect to the preparation and release of BOEM guidelines for information collection. While the current focus is on pre-construction information collection, BOEM recognizes that this information is also the foundation for post-construction impact evaluation.

关键词：风电；鸟；信息系统；决策

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The electro-magnetic torque and current are analyzed for a static eccentric PMSG.The characteristics of air-gap magnetic field,EMF,current and electro-magnetic torque of the direct driven PMSG for wind power generation are investigated with Maxwell software various eccentric conditions.The related electrical magnetic torque and current variation are achieved,especially the harmonics for current and torque.

关键词：电力系统；永磁同步发电机;有限元;偏心;电流;转矩

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Hydrogen fuel cells can potentially reduce greenhouse gas emissions and the United States dependence on foreign oil, but issues with hydrogen storage are impeding their widespread use. To help overcome these challenges, this study analyzes opportunities for their near-term deployment in five categories of non-motive equipment: portable power, construction equipment, airport ground support equipment, telecom backup power, and man-portable power and personal electronics. To this end, researchers engaged end users, equipment manufacturers, and technical experts via workshops, interviews, and electronic means, and then compiled these data into meaningful and realistic requirements for hydrogen storage in specific target applications. In addition to developing these requirements, end-user benefits (e.g., low noise and emissions, high efficiency, potentially lower maintenance costs) and concerns (e.g., capital cost, hydrogen availability) of hydrogen fuel cells in these applications were identified. Market data show potential deployments vary with application from hundreds to hundreds of thousands of units.

关键词：储氢；燃料电池；能源效率；温室气体

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The impact of parameterized topographic internal lee wave drag on the input and output terms in the total mechanical energy budget of a hybrid coordinate high-resolution global ocean general circulation model forced by winds and air-sea buoyancy fluxes is examined here. Wave drag, which parameterizes the generation of internal lee waves arising from geostrophic flow impinging upon rough topography, is included in the prognostic model, ensuring that abyssal currents and stratification in the model are affected by the wave drag. An inline mechanical (kinetic plus gravitational potential) energy budget including four dissipative terms (parameterized topographic internal lee wave drag, quadratic bottom boundary layer drag, vertical eddy viscosity, and horizontal eddy viscosity) demonstrates that wave drag dissipates less energy in the model than a diagnostic (offline) estimate would suggest, due to reductions in both the abyssal currents and stratification. The equator experiences the largest reduction in energy dissipation associated with wave drag in inline versus offline estimates. Quadratic bottom drag is the energy sink most affected globally by the presence of wave drag in the model; other energy sinks are substantially affected locally, but not in their global integrals. It is suggested that wave drag cannot be mimicked by artificially increasing the quadratic bottom drag because the energy dissipation rates associated with bottom drag are not spatially correlated with those associated with wave drag where the latter are small. Additionally, in contrast to bottom drag, wave drag is a non-local energy sink. All four aforementioned dissipative terms contribute substantially to the total energy dissipation rate of about one terawatt.

关键词：风能；海洋模型；深海丘陵；风电输入；动量方程

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This project concerns the development of a plasma flow control system for wind turbines. This document describes the technical progress made towards this goal during the 12-month Phase I effort that began in February, 2012. The Phase I project had four distinct objectives: (1) preliminary design of a plasma flow control system with manual control for wind turbines, (2) design and construction of laboratory facilities to permit component test and evaluation, (3) development and validation of simulation tools, and (4) field demonstration of a prototype system. Significant progress was made towards each of these goals, culminating in the field demonstration of a manually-controlled plasma flow control system on a 20 kW test turbine.

关键词：演示；测试床；风能；发电机；主动流动控制

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With the increasing development of clean energy technologies,the application of new energy and carbon capture technology would have a positive effect for CO2 emissions reduction.In this paper,planning of power system model including clean energy technology facing low carbon targets established,considering the carbon emission rights allocation and carbon trading.By studying coal-fired power plant planning model with wind power and carbon capture technology for the future planning period,establish the multi-objective model of minimum comprehensive cost and biggest carbon trading gains,considering constraint conditions of power generating capacity,wind power integrated capacity and carbon emissions reduction targets.Use the bacterial colony chemotaxis algorithm for optimization calculation of the power planning,to give a planning scheme that can meet the requirements of economic development trend and emission reducing requirements.

关键词：清洁能源技术；电力规划；碳排放权；风电场；

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High operation and maintenance costs still hamper the development of the wind industry despite its quick growth worldwide. To reduce unscheduled downtime and avoid catastrophic failures of wind turbines and their components have been and will be crucial to further raise the competitiveness of wind power. Condition monitoring is one of the key tools for achieving such a goal. To enhance the research and development of advanced condition monitoring techniques dedicated to wind turbines, we present an overview of wind turbine condition monitoring, discuss current practices, point out existing challenges, and suggest possible solutions.

关键词：风力发电机;监测;风力发电;传动系统

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关键词：风电；联邦机构；发电；电力系统；技术

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The U.S. power industry is undertaking several initiatives that will improve the operations of the power grid. One of those is the implementation of wide area measurements using phasor measurement units (PMUs) to dynamically monitor the operations and status of the network and provide advanced situational awareness and stability assessment. Wind power as an energy source is variable in nature. Similar to other large generating plants, outputs from wind power plants (WPPs) impact grid operations; conversely, grid disturbances affect the behavior of WPPs. The rapidly increasing penetration of wind power to the grid has resulted in more scrutiny of every aspect of wind plant operations and the demand that large WPPs should behave similarly to conventional power plants under normal and contingency grid conditions. The low-voltage ride-through (LVRT) requirement for WPPs is one such example. Other proposed requirements include frequency response and simulated plant inertia. To completely describe the system condition (state) of the electric power grid at any instant, it is necessary to know the voltage (V), current (I), and apparent power (S) of every point (node/bus) of the system. All three quantities in the alternating current (AC) power system are complex numbers that can be represented by phasors with both a magnitude and a phase angle. Out of the three phasor quantities, only two (any two) are needed to derive the third based on the equation S=VI*=P+jQ. The advance of computing power and worldwide availability of Global Positioning System (GPS) time signals make it possible for a PMU to measure voltage and current at a precise time and output these quantities in phasor form. GPS time signals can be accurate within 1 microsecond (is) anywhere the signal is available. GPS time signals enable the synchronization of measurements across the very large distances that power system interconnections span. This new technology not only produces very accurate phasor measurements but also enables synchronized measurements in the same instant.

关键词：风力发电厂；电力；互联电力系统；风电；相量测量单元（PMU）

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