电力系统及其自动化学报2016，Vol.28Issue(11)：37-43,7.DOI:10.3969/j.issn.1003-8930.2016.11.007
减小桨叶载荷的风电独立变桨优化控制模型
Model of Individual Blade Pitch Control of Wind Turbine to Reduce Load
摘要
Abstract
This paper presents an optimal individual pitch control method for wind turbines operating at high wind speeds to reduce the unbalanced load caused by wind shear while maintaining the rated power,thus prolong the life of wind turbine. According to the principle of aerodynamics,a model of load optimization is established with the minimiza⁃tion of unbalanced load as objective,and restricting the difference between output power and rated power within allow⁃able range as restraint. Using the nonlinear least square method and with the unified individual pitch angles are initial values,the optimal pitch angles corresponding to three blades are calculated,and these angles are further used as refer⁃ence values to realize individual pitch control,respectively. Simulation results indicate that compared with the tradition⁃al pitch control method,the proposed model can reduce the unbalanced load significantly and avoid the loss of power and the frequent pitching.关键词
最优独立变桨距控制/载荷优化/风剪切效应/统一变桨距控制/不平衡载荷Key words
optimal individual pitch control/load optimization/wind shear effect/collective pitch control/unbal-anced load分类
能源科技引用本文复制引用
兰飞,杨萌,王哲豪,蒋星..减小桨叶载荷的风电独立变桨优化控制模型[J].电力系统及其自动化学报,2016,28(11):37-43,7.基金项目
国家自然科学基金项目 （）
