太阳能Issue(11)：66-75,10.DOI:10.19911/j.1003-0417.tyn20230925.01
不同独立变桨控制策略对风电机组部件载荷及变桨轴承寿命的影响研究
STUDY ON INFLUENCE OF DIFFERENT IPC STRATEGIES ON LOAD OF WIND TURBINE COMPONENTS AND LIFE OF PITCH BEARINGS
张晓磊 1薛艳华 1郭俊凯 1井洪晶 1瞿沐淋 1王伟1
作者信息
- 1. 明阳智慧能源集团股份公司,中山 528437
- 折叠
摘要
Abstract
The independent pitch control(IPC)strategy can effectively reduce the unbalanced load of wind wheels,and different IPC strategies will directly affect the load and pitch bearing life of wind turbines.With the aim of reducing the unbalanced load and cost during the operation of wind turbines and enhancing their competitiveness,this paper designs an IPC strategy controller based on the blade root load measurement method.Taking a certain megawatt level wind turbine as an example,IPC strategies with different opening conditions are designed to analyze the load reduction effect of different IPC strategies during the operation of wind turbines.The impact of different IPC strategies on the load of wind turbine components and the life of pitch bearings is studied,and compared with the collective pitch control(CPC)strategy to verify the feasibility and practicality of the IPC strategy.The research results show that:1)The IPC strategy has a significant load reduction effect on the root resultant bending moment and hub resultant bending moment under extreme turbulent wind operating conditions and extreme wind shear operating conditions.2)The IPC strategy has a significant reduction effect on the fatigue load of wind turbines,especially on the equivalent fatigue load of the hub along the y-axis moment(My)in the rotating hub coordinate system.3)The IPC strategy has a very significant impact on the life of pitch bearings,and the degree of impact is related to the opening conditions of the IPC action.The earlier the IPC strategy is opened,the more obvious the load reduction effect on the fatigue load of wind turbines,but the less conducive it is to the life of pitch bearings.关键词
独立变桨控制/叶根载荷测量/风电机组/不平衡载荷/极限载荷/疲劳载荷/变桨轴承寿命Key words
IPC/blade root load measurement/wind turbines/unbalanced load/ultimate load/fatigue load/life of pitch bearing分类
能源科技引用本文复制引用
张晓磊,薛艳华,郭俊凯,井洪晶,瞿沐淋,王伟..不同独立变桨控制策略对风电机组部件载荷及变桨轴承寿命的影响研究[J].太阳能,2024,(11):66-75,10.
