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Pitch control and load optimization of variable speed variable pitch wind turbine
Author(s): 
Pages: 95-100
Year: Issue:  16
Journal: Relay

Abstract: 讨论了大型变速变桨风电机组在额定风速以上如何减小系统超调量以及降低机组载荷.根据风电机组的强非线性特点,采用基于模糊免疫PID的桨距控制策略,以减小发电机转速波动,改善功率品质.针对风电机组的塔架前后和侧向振动以及传动链扭转振动,提出了桨距、转矩阻尼滤波和加速度反馈等控制方式.通过Bladed外部控制器模块编程并进行仿真,结果表明所提出的控制策略能够改善变桨距控制的动态特性,降低关键部位载荷.
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