风电机组偏航系统静态偏差分析与研究  

Analysis and research on static deviation of the yaw system of wind turbines

作　　者：徐金晖 郭鹏[1] 宋鹏[2] 柳玉[2] XU Jinhui;GUO Peng;SONG Peng;LIU Yu(School of Control and Computer Engineering,North China Electric Power University,Beijing 102206,China;North China Electric Power Research Institute,Beijing 100045,China)

机构地区：[1]华北电力大学控制与计算机工程学院,北京102206 [2]华北电力科学研究院有限责任公司,北京100045

出　　处：《华电技术》2019年第7期1-5,9,共6页HUADIAN TECHNOLOGY

基　　金：国家自然科学基金项目(51677067)

摘　　要：静态偏差(偏航静差)普遍存在于风电机组的偏航系统控制中,造成机组发电效率降低、载荷增加。针对目前风电场缺少激光雷达测风仪的现状,提出了基于数据预处理的改进区间化偏航静差分析和计算方法。在分析风电机组运行特性的基础上,选取机组最大风能追踪阶段叶尖速比水平分布区间的运行数据,通过比较不同风速和偏航误差区间的功率特性来分析计算偏航静差。以激光雷达测风仪测量的数据为基准,对该方法的有效性进行检验,并建立偏航静差与叶轮转速的函数关系,可根据叶轮转速的变化对偏航静差作更精确的分析。风电场实际应用表明,该方法能够有效准确地分析和计算偏航静差值。Static deviation is common in yaw control system of wind turbines,resulting in reduction of power generation efficiency and increase of low load.Based on the wind turbine operating data,an improved analysis and calculation method for discretized static deviation of yaw system based on data preprocessing is proposed. By analyzing the operating characteristics of the wind turbines,the operating data in the horizontally distributed interval of tip speed ratios during maximum wind power tracking are selected.And the static deviations of the yaw system are analyzed and calculated by comparing the power characteristics with different wind speed and yaw error intervals.Baesd on data measured by laser radarsonde,the effectiveness of the method can be tested,and the relationship between the static deviation of the yaw system and the impeller speed is established.More accurate analysis on static deviation of the yaw system can be made according to impeller speed.The application results in wind farms show that the proposed method can effectively and accurately analyze and calculate the static deviation of the yaw system.

关 键 词：偏航静差 风电机组 数据预处理 功率特性 叶尖速比 激光雷达测风仪 

分 类 号：TM721[电气工程—电力系统及自动化]