考虑风资源特征的海上风电场功率输出精细建模研究  

Refined power output modeling of offshore wind farm considering wind resource characteristics

作　　者：李广华 周金娜 许昌[2] 许帅 Li Guanghua;Zhou Jinna;Xu Chang;Xu Shuai(XJ Group Corporatio;College of Energy and Electrical Engineering,Hohai Universit)

机构地区：[1]许继集团有限公司,河南许昌461000 [2]河海大学能源与电气学院,江苏南京211100

出　　处：《可再生能源》2018年第5期778-784,共7页Renewable Energy Resources

基　　金：中丹国际科技合作专项项目(2014DFG62530);国家自然科学基金项目(51507053)

摘　　要：大型海上风电场功率输出会受到多种复杂环境因素的影响。为了研究海上风电场的功率输出特性,建立了考虑海面粗糙度、大气稳定度、尾流效应等因素的海上风电场风资源模型,并对风电机组中的风力机、齿轮箱、发电机、变流器等部件进行精细建模。然后,结合上述模型和集电线路建立了整个风电场的仿真模型,分析了大气稳定度和海、陆风对风电场功率输出的影响。分析结果表明:大气稳定度对风电场功率输出影响较大;海、陆风对风电场功率输出的影响主要体现在机组间的尾流差异。The output of large scale offshore wind farm would be affected by various factors from the environment. To investigate the characteristic of an offshore wind farm output, a wind resource estimation model is developed with considering the sea surface roughness, atmospheric stability and wake effect. The models of wind turbine, gearbox, generators, converters and existing components are also comprehensively established. Then, based on the above-mentioned model and considering the effect of collector grid system, a model for the simulation of offshore wind farms is successfully established and the effects of atmospheric stability and sea-land breeze on the power output is investigated. The results show that the atmospheric stability has a great impact on the power output,and the influence of sea-land breeze is mainly on the wake of wind turbines.

关 键 词：海上风电场 风电场建模 海面粗糙度 大气稳定度 尾流 集电系统 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]