GOALI: Energy Efficient and Reliable Motion Mechanism for Ocean Wave Energy Harvesting

GOALI：用于海浪能量收集的节能且可靠的运动机制

• 批准号: 1435867
• 负责人: Lei Zuo
• 金额: $ 30万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1435867&HistoricalAwards=false
• 关键词: GOALI; Energy; Efficient; Reliable; Motion

The potential of wave energy source in the US is estimated to be 64% of the total electricity generated in 2010. Over 53% of the US population lives within 50 miles of the coasts, so ocean waves offer ready opportunity to provide electricity for the population without long-distance electricity transmission. The power takeoff - the machinery to convert the mechanical energy into electricity - is considered as the single most important element in wave energy technology, and underlies many of the failures of ocean wave energy systems to date. Revolutionary power takeoff is urgently needed in order to realize the high electricity potential from the untapped ocean waves. The objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) project is to experimentally and theoretically investigate the design, modeling and control of an innovative ocean power takeoff mechanism to solve the most fundamental challenge in wave energy harvesting. The power takeoff offers much higher energy conversion efficiency, enhanced reliability, and unmatched compactness, and completely eliminates hydraulic components for potential environmental pollution. It can be integrated into the point absorbers, wave attenuators, wave terminators, or other type of wave energy converter whenever oscillatory wave motion is involved. Therefore, the success of this research will help establishing the leadership role of the US in the area of ocean wave energy. This project is expected to pave a sustainable energy pathway of harvesting vast but untapped ocean wave sources to meet the increasingly urgent national demand for energy and energy security. Multidisciplinary research on energy manufacturing, marine hydrodynamics, mechatronics design, multi-physics modeling, control, and in-field study will be conduct in this project. The state-of-the-art ocean wave energy technology either uses direct-drive power takeoffs with linear electromagnetic generator or indirect-drive power takeoffs using intermediate fluid. The direct drives are simple and reliable but require heavy and bulk permanent magnets; the indirect drives are more compact but suffer from serious shortcomings on the complexity, reliability, and efficiency. The research team will create and investigate a "mechanical motion rectifier" based power takeoff to uniquely convert the irregular oscillatory wave motion into regular unidirectional rotation of the generator, having the advantages of direct and indirect drives. The research team will also systematically study the vibration energy harvesting synthesis from new perspective of modern electrical engineering including diodes and transistors. Multi-body dynamic motion magnification will also be investigated to significantly enhance the power extraction capacity.

据估计，美国波能源的潜力估计是2010年产生的总电力的64％。超过53％的美国人口居住在海岸50英里以内，因此海浪提供了准备就绪的机会，可以为没有长途电力传播的人口提供电力。动力起飞 - 将机械能转换为电力的机械被认为是波能源技术中最重要的元素，并且是迄今为止海浪能源系统的许多故障。为了实现未开发的海浪的高电力，迫切需要革命性的起飞。这项与工业联络（Goarii）项目的学术联络机会的目标是在实验和理论上研究创新的海洋动力起飞机制的设计，建模和控制，以解决波动能量收获中最根本的挑战。功率起飞具有更高的能量转换效率，增强的可靠性和无与伦比的紧凑性，并完全消除了潜在环境污染的液压组件。只要涉及振荡波运动，就可以将其集成到点吸收器，波浪衰减器，波浪终端或其他类型的波能转化器。因此，这项研究的成功将有助于确立美国在海浪能源领域的领导作用。预计该项目将铺平一种可持续的能源途径，即收集广泛但未开发的海浪来源，以满足日益紧迫的国家对能源和能源安全的需求。 该项目将进行有关能源制造，海洋流体动力学，机电一体化设计，多物理建模，控制和场地研究的多学科研究。最先进的海浪能源技术要么使用线性电磁发生器的直接驱动功率起飞，要么使用中型流体使用内部驱动器。直接驱动器简单可靠，但需要沉重而散装的永久磁铁。间接驱动器更紧凑，但在复杂性，可靠性和效率上存在严重的缺点。研究团队将创建并研究基于“机械运动整流器”的功率起飞，以唯一将不规则的振荡波运动转换为发电机的常规单向旋转，具有直接和间接驱动器的优势。研究团队还将从现代电气工程（包括二极管和晶体管）的新角度系统地研究振动能量收集的合成。还将研究多体动态运动放大倍率，以显着提高功率提取能力。