中国风电“前途光明道路曲折”

随着全球气候变暖和能源危机加剧,世界各国都在加紧对风力资源开发和利用,我国也特别关注可再生能源项目和清洁能源项目的开发,并鼓励发展风电等清洁可再生能源。党的"十八大"报告也提出要大力推进生态文明建设,积极发展节能低碳产业和新兴能源、可再生能源。与其他可再生能源相比,风能的开发技术较为成熟,对环境的影响相对较低,并且不受生物质能     

云南风能水能互补发电分析和展望

风能水能资源的互补开发、综合利用是一种有效的可再生能源利用方式。通过阐述国际及国内风电发展现状,分析云南电力结构,研究云南风能资源特点,提出在云南建立基于风能水能互补发电的可再生能源体系。     

《可再生能源法》答记者问

问:中国目前可再生能源开发利用情况如何? 答:可再生能源是指从自然界获取的、可以再生的非化石能源,目前主要是指风能、太阳能、水能、生物质能、地热能和海洋能等.中国可再生能源资源非常丰富,开发利用的潜力很大.据国家发改委有关单位测算,在今后20～30年内,具备利用条件的小水电、风能、太阳能、生物质能等可再生能源资源量,预计每年可达到8亿tce.     

崇明岛--未来可再生能源基地

简单介绍了崇明岛太阳能、风能、生物质能、波浪能等可再生能源的资源情况，目前崇明岛开发风力发电、光伏发电、沼气应用工程等可再生能源的发展现状，指出崇明岛丰富的可再生能源资源将在未来的生态岛建设中发挥重要的作用，崇明岛将成为未来可再生能源基地。     

中国风能资源的详查和评估

风能是清洁的可再生能源,大力开发利用风能资源是有效应对气候变化的重要举措之一。中国政府十分重视风能资源的有序开发和合理利用,20世纪70年代至2006年期间,先后组织开展了3次全国风能资源普查,为我国的风能资源开     

黄河三角洲可再生能源利用现状分析及对策

黄河三角洲具有丰富的可再生能源,科学合理地开发利用可再生能源,对于黄河三角洲的可持续发展具有十分重要的意义。文章阐述了黄河三角洲风能、太阳能、地热能、生物质能等可再生能源资源及利用现状;深入分析了开发利用中存在的问题;有针对性地提出了加快制定黄河三角洲可再生能源专项规划、组建黄河三角洲可再生能源专门管理机构、制定黄河三角洲可再生能源利用运行机制、深化拓展黄河三角洲可再生能源开发利用和营造可再生能源开发利用的社会氛围等相关对策。     

两岸可再生能源产业合作迈上新台阶

8月30日,由国家发展改革委能源研究所和台湾工业技术研究院主办,国家可再生能源中心、中国可再生能源学会风能专业委员会、中国资源综合利用协会可再生能源专业委员会协办的"2012年两岸可再生能源产业合作及交流会议"在河北保定召开。此次会议由国家发展改革委能源研究所和台湾工业技术研究院主办,国家可再生能源中心、中国可再生能源学会风能专委会、中国资源综合利用协会可再生能源专委会协办会议围绕"深化、务实、创新"主题,     

正确使用润滑油，提升风电产量

风能是世界上最丰富的可再生能源之一。风机的叶片在风能的推动下高速旋转,源源不断地输出电能。这种可再生的能源利用模式过去几年在全球都得到了迅猛地发展。事实上,中国在风能利用方面潜力巨大。根据中国可再生能源行业协会的预测,     

西藏农村能源可持续发展面临的问题与对策

介绍了地处青藏高原的西藏可再生能源资源:电力资源、太阳能资源、地热资源、风能资源和生物质能的发展历程,分析了西藏农牧区能源利用现状,指出西藏农村能源利用面临的主要问题和困难,并针对这些问题提出了西藏农村能源可持续发展的对策:①加快小城镇化进程,实现能源资源的合理配置;②因地制宜,多能互补;③调整农村能源消费结构,积极支持可再生能源开发。     

2013年北京国际风能大会暨展览会征文通知

北京国际风能大会暨展览会(CWP)由中国可再生能源学会风能专业委员会(CWEA)、中国资源综合利用协会可再生能源专业委员会(CREIA)、全球风能理事会(GWEC)和国家可再生能源中心(CNREC)联合主办,是全球风能业界最     

Wind energy resources on Phuquoc Island,Vietnam

This study analyzes the wind energy resources on Phuquoc Island, Vietnam. Daily wind data are collected from 2005 to 2011 in this study. The annual mean speed and power density are 6 m/s and 355 W/m², respectively. Results show that more than 35% of the wind energy comes from the northwest. In this study, a 75 MW wind farm with 25 wind turbines is simulated by using the WAsP 10 program. The wind farm can produce over 189.636 GWh annually. In addition, the effects of wind disturbance and three-phase short circuit of the grid are analyzed using the ETAP 7.0 program.     

能量自主闭环的智能测风系统的研究

以风电场开发、气候气象等领域对精确、可靠的测风系统的需求为背景,搭建了一套可实现能量自主闭环的智能测风系统,对该智能测风系统所具有的风能信息精确获取与主动识别、风光储多种能源综合利用与能量自主闭环、区域性风能资源数据科学处理与传输等关键技术进行了介绍,以期为风电场选址提供科学依据,为其建设提供精确的参考数据.     

Wind energy potential in Syria

Both wind energy potential and the electricity that could be generated by the wind for the Syrian land have been evaluated. An appropriate computer program was especially prepared and designed to perform the required calculations, mainly the wind energy potential and the generated electricity, using the available meteorological data provided by the Syrian Atlas. The program is capable of processing the wind data for any specific area, that is of course, in accordance with the needed requirements in fields of researches and applications.Moreover, calculations show that a huge energy potential is available for direct exploitation and as much as twice the current electricity consumption in Syria can be generated by the wind resource.     

Design and implementation of wind energy system in Saudi Arabia

This paper introduces an accurate procedure to choose the best site from many sites and suitable wind turbines for these sites depending on the minimum price of kWh generated (Energy Cost Figure (ECF)) from wind energy system. In this paper a new proposed computer program has been introduced to perform all the calculations and optimization required to accurately design the wind energy system and matching between sites and wind turbines. Some of cost calculations of energy methods have been introduced and compared to choose the most suitable method. The data for five sites in Saudi Arabia and hundred wind turbines have been used to choose the best site and the optimum wind turbine for each site. These sites are Yanbo, Dhahran, Dhulom, Riyadh, and Qaisumah. One hundred wind turbines have been used to choose the best one for each site. This program is built in a generic form which allows it to be used with unlimited number of sites and wind turbines in all over the world. The program is written by using Visual Fortran and it is verified with simple calculation in Excel. The paper showed that the best site is Dhahran and the suitable wind turbine for this site is KMW-ERNO with 5.85 Cents/kWh. The worst site to install wind energy system is Riyadh with minimum price of kWh of 12.81 Cents/kWh in case of using GE Energy 2 wind turbine.     

一种新型聚能-遮蔽型立轴风力机

提出了一种适合任意风向的新型聚能-遮蔽型立轴风力机,并应用计算流体力学方法,对这种风力机的气动性能进行了数值模拟.研究表明:这种新型立轴风力机比传统的立轴风力机的风能利用率有显著提高.此外,该文还采用了正交优化设计方法,对这种立轴风力机的结构参数进行了优化设计,得到了一组最优的设计参数,该最优设计参数下风力机的风能利用率达37%.     

A review on development of offshore wind energy conversion system

Wind energy conversion system, aiming to convert mechanical energy of air flow into electrical energy has been widely concerned in recent decades. According to the installation sites, the wind energy conversion system can be divided into land-based wind conversion system and offshore wind energy conversion (OWEC) system. Compared to land-based wind energy technology, although OWEC started later, it has attracted more attentions due to its significant advantages in sufficient wind energy, low wind shear, high power output and low land occupancy rate. In this paper, the principle of wind energy conversion and the development status of offshore wind power in the world are briefly introduced at first. And then, the advantages and disadvantages of several offshore wind energy device (OWED), such as horizontal axis OWED, vertical axis OWED and cross axis OWED are compared. Subsequently, several major constraints, such as complex marine environment, deep-sea power transmission and expensive cost of equipment installation faced by offshore wind conversion technology are presented and comprehensively analysed. Finally, based on the summary and analysis of some emerging technologies and the current situation of offshore wind energy utilization, the development trend of offshore wind power is envisioned. In the future, it is expected to witness multi-energy complementary, key component optimization and intelligent control strategy for smooth energy generation of offshore wind power systems.     

波浪能风能的联合发电装置

简要介绍了波浪的生成及特性。对波浪能和风能的综合利用进行了研究,并研制成发电系统。     

节能潜力调查诊断——《中国分行业节能潜力调查》项目总结

随着近年来我国能源消费的快速增长,节能技术的推广已经引起广泛关注。由日方资助、中日双方共同组织实施的节能潜力调查诊断项目,通过对典型企业能源利用状况的测试,分析了中国部分企业的用能效率与节能潜力,提出节能的途径和建议。     

Exploitation and utilization of the wind power and its perspective in China

Wind energy, as a reliable, natural and renewable electrical power supply, produces no emissions and so it is an excellent alternative to conventional, more heavily polluting fuels in the long term based on the worldwide concern about the environment and energy supply. Wind energy resources in China are affluent, but its distribution are uneven, centralized, and far from both the utility and the high electricity demand markets. This made China's onshore wind power development have such characteristics as large scale, high centralization and far transmission, which is different with that in Europe, where the characteristics are even distribution, decentralized. In past two decades, considering the economic, technical and environmental benefits of wind power, China has given priority to its development. Besides the dramatic growth of large scale grid-connected wind power, household-scale wind power has been used most successfully in remote rural regions in China. Therefore, the development of wind power will be of great importance to alleviate the energy crisis and environmental pollution resulting from the rapid economic growth of China in the future. In this paper, the current development of wind energy utilization in China is investigated, and some critical barriers are discussed. Finally, the perspective of wind energy utilization is presented, where focuses are placed on seven wind power bases.     

高效低载的三维风力机叶片外形优化设计方法

常规风力机叶片的优化设计都是从二维翼型开始的,且翼型总是以升阻比最大为优化目标。然而,二维翼型的升阻比最大和三维叶片的高风能利用率与低气动载荷有本质的不同,采用以往的叶片优化方法常常会在提高风能利用率的同时,使叶片所受的气动载荷也提高。针对这一问题,提出基于多岛遗传算法和动量叶素理论,在给定风况条件下,以加权风能利用率最高与气动载荷最小为目标函数,以叶片各个截面的翼型型线及扭角作为设计变量,对三维叶片开展多目标优化方法设计研究。并对某实际NREL Phase VI叶片进行优化设计,结果表明：在给定风况下相比原叶片,优化叶片在风能利用率提升了3.06%的基础上,叶根弯矩降低了11.68%。在变转速与变风况下,优化叶片的气动效率整体提升,叶根弯矩明显降低。