直驱型风电机组市场近况

本文介绍了直驱型风电机组的两种技术路线,以及该类型机组与双馈型风电机组的优劣势比较,同时,分析了目前直驱型风电机组的市场情况。     

低风速型风电机组发展调查

本文简单介绍了低风速型风电机组在我国的应用情况,以及该类机组所具有的技术和市场特征。随着我国分散式风电开发逐步增加,低风速风电机组越发受到市场青睐,然而低风速型风电机组的特有技术并非仅仅是加长叶片那么简单,还需要注意解决多方面问题。     

中国整机商双馈型风电机组市场趋势统计分析

正1整体情况虽然直驱、混合、双馈等不同技术路线的风电机组产品各自拥有着不同的优势,但双馈型风电机组在我国风电市场中所占有的地位不言而喻,这与我国多数整机厂商在初期的技术引进、技术路线的选择有关,也同整个市场初期的供给,以及此后所形成的需求有关。由表1可知,从2001年开始至2013年的13年间,我国双馈型风电机组累计装机容量达到65711.83MW,2013年该机型装机量为10731.2MW,在历年该机型新增装机量中排第4。通过图2分析,我国双馈型机组的装机     

大容量风电机组技术发展动态研究

海上风电的快速发展极大地促进了大容量风电机组的商业化。大容量风电机组的设计制造应用了许多新技术、新材料和新工艺,引领着未来风电机组技术的发展方向。本文通过对国内外十余种大容量风电机组技术特点的研究,归纳总结了风电机组技术发展的新趋势,以期为我国风电机组的研发设计工作提供参考。     

大型风电机组电机驱动型主动偏航系统故障诊断技术概述

在分析风电机组偏航系统结构特点的基础上,综述了电机驱动型主动偏航系统的故障类型及对应的故障机理、常用的故障诊断技术与方法的研究进展。经过文献分析发现,大功率风电机组电机驱动型主动偏航系统故障诊断技术的研究主要集中在大数据平台研究、多传感器信息融合技术开发等热点领域。未来,风电机组偏航系统故障诊断技术研究将以成本较低的基于SCADA系统的数据深度挖掘为发展方向。     

大型国产风电机组落户呼伦贝尔草原

2007年7月28日33台DF708风电机组在内蒙古呼伦贝尔草原落户。这是我国目前国产化率高达74．5％单机容量最大1．5MW低温型机组,系东方汽轮机厂产品。东汽又开始与欧洲著名的风机设计公司联合开发具有完全知识产权世界先进水平的2．5MW风电机组,并着手兴建新的风电总装厂房、兆瓦级风电机组复合材料部件基地,组建了天津东汽风电叶片厂和风电技术研究院,以期生产制造业领先风电机组。     

海上风电机组发展趋势分析

本文追述了海上风电机组的发展历程,分析了世界各主要风电机组生产厂家正在研制的海上风电机组的技术路线,提出了海上风电机组今后发展的主要趋势。     

浮动式风电机组

浮动式风电机组又称深海型风电机组,一般安装在浮动平台上,并通过锚索进行固定。     

回望我国第一座陆上风电场

<正>在改革开放初期,我国尚未掌握风电场的建设经验和风电并网技术,也缺少适用的并网型风电机组。为了通过风电场建设来更好地开发利用风能,推动我国并网型风电机组的产业化发展,1983～1985年,山东省政府和航空工业部组织了相关学科的专家学者,对国际、国内风能的发展和利用状况进行了广泛、深入的考察和论证。在认真分析的基础上,提出了"引进机组、学习     

南车风电:向更高处去

正中国特色风电机组的成功研发与应用,不仅是中国风电产业自主新能力的鉴证,更是对全球风电技术产品型谱的一种丰富和贡献南车风电高原型风电机组的规模化投运,将大大提升中国乃至世正中国特色风电机组的成功研发与应用,不仅是中国风电产业自主创新能力的鉴证,更是对全球风电技术产品型谱的一种丰富和贡献。南车风电高原型风电机组的规模化投运,将大大提升中国乃至世界风电场的平均     

太阳能烟囱与垂直轴风机耦合发电可行性分析

通过分析太阳能烟囱热气流发电和垂直轴风力机发电的技术及特点,提出了太阳能热气流烟囱与垂直轴风力机耦合发电的方法。对风力机—太阳能热气流烟囱互补发电系统的可行性进行了分析。互补发电的功率输出持续、稳定,具有大规模并网的良好条件,是实现太阳能与风能综合利用的有效途径。     

Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants

Owing to the stochastic characteristic of natural wind speed, the output fluctuation of wind farm has a negative impact on power grid when a large-scale wind farm is connected to a power grid. It is very difficult to overcome this impact only by wind farm itself. A novel power system called wind-gas turbine hybrid energy system was discussed, and the framework design of this hybrid energy system was presented in detail in this paper. The hybrid energy system combines wind farm with several small gas turbine power plants to form an integrated power station to provide a relatively firm output power. The small gas turbine power plant has such special advantages as fast start-up, shutdown, and quick load regulation to fit the requirement of the hybrid energy system. Therefore, the hybrid energy system uses the output from the small gas turbine power plants to compensate for the output fluctuation from the wind farm for the firm output from the whole power system. To put this hybrid energy system into practice, the framework must be designed first. The capacity of the wind farm is chosen according to the capacity and units of small gas turbine power plants, load requirement from power grid, and local wind energy resource distribution. Finally, a framework design case of hybrid energy system was suggested according to typical wind energy resource in Xinjiang Autonomous Region in China.     

Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants

Owing to the stochastic characteristic of natural wind speed, the output fluctuation of wind farm has a negative impact on power grid when a large-scale wind farm is connected to a power grid. It is very difficult to overcome this impact only by wind farm itself. A novel power system called wind-gas turbine hybrid energy system was discussed, and the framework design of this hybrid energy system was presented in detail in this paper. The hybrid energy system combines wind farm with several small gas turbine power plants to form an integrated power station to provide a relatively firm output power. The small gas turbine power plant has such special advantages as fast start-up, shutdown, and quick load regulation to fit the requirement of the hybrid energy system. Therefore, the hybrid energy system uses the output from the small gas turbine power plants to compensate for the output fluctuation from the wind farm for the firm output from the whole power system. To put this hybrid energy system into practice, the framework must be designed first. The capacity of the wind farm is chosen according to the capacity and units of small gas turbine power plants, load requirement from power grid, and local wind energy resource distribution. Finally, a framework design case of hybrid energy system was suggested according to typical wind energy resource in Xinjiang Autonomous Region in China.     

基于混杂系统的风力发电机组建模与控制

针对风力发电机组系统固有的混杂系统典型特征,运用混杂自动机理论和混合逻辑动态理论建立了风力发电机组的混杂模型,设计了基于自动机模型的全程混杂控制系统,并以1台额定功率为300 MW的变速变桨距风力发电机组为例进行了仿真.结果表明:自动机模型可实现风电机组的全程模拟,自动机的混杂控制系统可满足风电机组全程控制的要求,而且基于混合逻辑动态模型的预测控制也实现了功率输出优化,证明了混杂系统理论应用于风力发电研究领域的有效性和实用性.     

Validation of a hybrid modeling approach to floating wind turbine basin testing

Hybrid modeling combining physical tests and numerical simulations in real time opens new opportunities in floating wind turbine research. Wave basin testing is an important validation step for floating support structure design, but current methods are limited by scaling problems in the aerodynamic loadings. Applying wind turbine loads with an actuation system controlled by a simulation that responds to the basin test offers a way to avoid scaling problems and reduce cost barriers for floating wind turbine design validation in realistic coupled conditions. In this work, a cable‐based hybrid coupling approach is developed and implemented for 1:50‐scale wave basin tests with the DeepCwind semisubmersible floating wind turbine. Tests are run with thrust loads provided by a numerical wind turbine model. Matching tests are run with physical wind loads using an above‐basin wind maker. When the numerical submodel is set to match the aerodynamic performance of the physical scaled wind turbine, the results show good agreement with purely physical wind‐wave tests, validating the hybrid model approach. Further hybrid model tests with simulated true‐to‐scale dynamic thrust loads and wind turbulence show noticeable differences and demonstrate the value of a hybrid model approach for improving the true‐to‐scale realism of floating wind turbine basin tests.     

风电与燃气轮机互补发电系统发电成本分析

在采用风电场与小型燃气轮机组成的互补系统发电特性参数的基础上,详细分析了互补系统发电成本的构成和各自的计算方法。采用新疆达坂城风电场的风速数据,基于互补系统的发电特性参数和风电场与燃气轮机电站的发电成本构成,应用改进过的等额支付折算法,在当前的技术条件和价格下,计算了风电场子系统和燃气轮机电站子系统各自的折旧成本、燃料成本和运行维护成本,得到了整滚发电系统发电成本的计算方法,为在新疆地区实现这种互补发电系统提供经济分析基础。     

Assessment of economic viability for PV/wind/diesel hybrid energy system in southern Peninsular Malaysia

This paper analyzed the potential implementation of hybrid photovoltaic (PV)/wind turbine/diesel system in southern city of Malaysia, Johor Bahru. HOMER (hybrid optimization model for electric renewable) simulation software was used to determine the technical feasibility of the system and to perform the economical analysis of the system. There were seven different system configurations, namely stand-alone diesel system, hybrid PV–diesel system with and without battery storage element, hybrid wind–diesel system with and without battery storageelement, PV–wind–diesel system with and without storage element, will be studied and analyzed. The simulations will be focused on the net present costs, cost of energy, excess electricity produced and the reduction of CO₂ emission for the given hybrid configurations. At the end of this paper, PV–diesel system with battery storage element, PV–wind–diesel system with battery storage element and the stand-alone diesel system were analyzed based on high price of diesel.     

风光互补路灯系统的优化设计方法

采用风机优先法,对风光互补路灯系统的优化设计方法进行了分析.首先根据负载需求初步选定风机容量:其次计算出与选定风机相匹配的太阳能电池板的容量;进而计算每一组设备组合的总价值;最后选定总投资价格最小的风光互补发电组合.文章结合道路照明的实例,给出了风光互补路灯系统在负载需求和经济方面的优化设计.     

风电机组检修安全技术交底标准化建模实践

风电机组检修过程需具备较高的安全性和技术性,而现行的风电机组检修维护管理中安全技术交底不够全面、针对性不强且不具有过程性。为实现安全技术交底标准化和流程化,提出了基于故障树的PDCA模块化风电机组检修安全技术交底。实践结果表明,故障树分析标准化建模方法能够提升风电机组检修安全技术交底的完整性、彻底性及针对性;PDCA循环方法作为安全技术交底建模的有益补充,使检修管理系统具有更强的适应性、可用性、时效性及可扩展性。研究成果为风电机组安全生产及管理提供了新思路。