Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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大叶轮风电机组独自变桨算法研究

来源:电工电气发布时间:2020-09-18 15:18 浏览次数:61
大叶轮风电机组独自变桨算法研究
 
陈俊
(中国船级社质量认证公司,北京 100006)
 
    摘 要:不平衡载荷对轮毂、轴承、主轴、机舱偏航轴承、塔架等机械部件造成相当大的疲劳载荷。为降低机组关键部件的相关载荷,设计了一种独自变桨控制算法,将机舱的旋转坐标系每个叶片平面外的弯矩经反向变换得出固定坐标系对应的机舱的风轮平面俯仰力矩和偏航力矩,采用PID控制减小相关载荷。通过PID控制实现变桨系统的动作,从而降低风轮平面受到的不平衡载荷,同时降低了风力发电风电机组疲劳载荷。
    关键词:独自变桨控制;风轮平面载荷不平衡;疲劳载荷;风轮平面俯仰力矩;风轮平面偏航力矩
    中图分类号:TM614     文献标识码:A     文章编号:1007-3175(2020)09-0023-05
 
Research on Independent Pitch Control Algorithm of Large-Blade Wind Turbine
 
CHEN Jun
(China Classification Society Certification Company, Beijing 100006,China)
 
    Abstract: Unbalanced loads cause considerable fatigue loads on mechanical components such as wheels, bearings, main shafts, nacelle yaw bearings, and towers.In order to reduce the relative load of the key components of the unit, an independent pitch control algorithm is devised. The bending moment outside the plane of each blade in the rotating coordinate system of the nacelle is inversely transformed to obtain the pitching moment and yaw moment of the wind turbine plane of the nacelle corresponding to the fixed coordinate system, and PID control is used to reduce the related load. The action of the pitch system is realized through PID control, thereby reducing the unbalanced load on the plane of the wind wheel, and at the same time reducing the fatigue load of the wind turbine.
    Key words: independent pitch control; unbalanced wind wheel plane load; fatigue load; wind wheel plane pitch moment; wind wheel plane yaw moment
 
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