风力发电场初步设计技术研究

发布时间：2018-03-21 22:07

本文选题：风力发电机　切入点：初步设计　出处：《华北电力大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着化石燃料的过度开发利用,全球环境正在受到严重的侵蚀,污染问题日益突出,在这种大环境的驱使下,新型能源解决方案的提出迫在眉睫。风力发电产业作为目前新型能源解决方案中最具优势的种类近年来在世界能源产业中迅速崛起,高速发展。本文主要对风力发电场初步设计阶段中主要的经济技术指标和主要技术参数进行了探讨,重点对投资决策起到至关重要作用的风资源分析及相关发电设备选型以及设计及施工过程安全性要求极高的风力发电机组基础设计部分进行了讨论,通过对上述三个部分的计算分析过程描述阐述了目前国内风力发电场的主流设计方式和设计方向:1.风力发电厂项目进行的第一步也是最关键的一步就是风资源分析,此过程通过对收集到的厂址区域风资源数据及周边风资源数据和当地气象站长时间观测得到的数据进行分析、筛选及规律性总结,尽量精确预测厂址区域内未来20年的风资源情况,此过程应用到相关性分析进行数据筛选和缺失数据补齐,得出的数据结论则将是判断整个项目是否具有经济价值和开发可行性的最主要指标。2.风电机组的选择与风资源数据分析结论息息相关,除了对比各投标主机厂商提供的风机主要技术参数外,还需要计算并导入平均风速、等效利用小时数、最大风速、极大风速、风切变指数等数据的同时也要导入风资源数据包,综合场址区域内不同的机位分布和地形变化通过CFD软件进行综合计算,最终得出每一台机器相对精确的发电量及发电小时数,这样经过详细的机组性能指标分析和对机组在风场极端环境下的适应性分析进行论证后,结合发电量指标的经济性分析,最终确定合适的机型。3.风力发电机的基础设计是整个风电场建设过程中对载荷指标的要求最高的一部分。多年的设计及建设经验,使得风机基础设计已经基本实现标准化,本文中主要使用传统的扩展式基础为标准基础进行设计,设计过程中通过与设备厂家提供的基础载荷进行对比更改模型中的基本参数和钢筋使用量,从而使基础能够满足风机在极限条件下产生的载荷,保障风力发电机的安全运行。
[Abstract]:With the excessive exploitation and utilization of fossil fuels, the global environment is being seriously eroded and the pollution problem is becoming more and more serious. Wind power industry, as the most advantageous kind of new energy solutions, has been rising rapidly in the world energy industry in recent years. In this paper, the main economic and technical indexes and main technical parameters in the preliminary design of wind farm are discussed. The analysis of wind resources and the selection of related generation equipment, as well as the wind turbine foundation design with high safety requirements in the design and construction process, which play an important role in investment decision, are discussed. By describing the calculation and analysis process of the above three parts, this paper expounds the mainstream design method and design direction of wind farm in China at present. The first and most crucial step of the wind power plant project is wind resource analysis. Through the analysis, screening and regular summary of the collected data of wind resources in the site area, the data of wind resources in the surrounding areas and the data obtained from local meteorological stations for a long time, As accurately as possible to predict the wind resources in the site area for the next 20 years, this process is applied to correlation analysis for data screening and missing data correction. The data conclusion will be the most important index to judge whether the whole project has economic value and development feasibility. The selection of wind turbine is closely related to the conclusion of wind resource data analysis. In addition to comparing the main technical parameters of the fans provided by each bidding host manufacturer, it is also necessary to calculate and import the average wind speed, equivalent utilization hours, maximum wind speed, maximum wind speed, wind shear index, and so on. At the same time, it is also necessary to import wind resource data packets. The location distribution and terrain change in the integrated site area are calculated by CFD software, and the relative accurate power generation and generation hours of each machine are obtained. After detailed performance index analysis and adaptability analysis of the unit in the extreme wind field environment, combined with the economic analysis of the power generation index, The basic design of wind turbine is the most important part of the load index in the whole wind farm construction process. Many years of design and construction experience have made the basic design of wind turbine have been basically standardized. In this paper, the traditional extended foundation is used to design the standard foundation. In the design process, the basic parameters of the model and the amount of steel bar used in the model are changed by comparing with the basic load provided by the equipment manufacturer. Thus the foundation can satisfy the load produced by the fan under the limit condition and ensure the safe operation of the wind turbine.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM614

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