变速变桨风力发电机组塔架的侧向振动控制  

Control of side-to-side vibration of the tower of a variable speed and variable pitch wind turbine

作　　者：杜静[1] 谢双义[1] 王磊[1] 罗敏[1] 金鑫[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《中国电力》2012年第6期87-90,共4页Electric Power

基　　金：国家科技支撑计划资助项目(2009BAA22B02);国家自然科学基金资助项目(51005255);教育部高等学校博士学科点科研基金资助项目(20090191120005);中央高校基本科研业务费科研专项自然科学类基金资助项目(CDJZR10110004)

摘　　要：针对结构阻尼很小的大型兆瓦级变速变桨(Variable Speed and Variable Pitch,VSVP)风力发电机组如何抑制塔架的侧向振动问题进行研究,提出在控制器的设计中,借助反馈增益并使用塔顶振动加速度测量值来确定附加的电机转矩设定点,并在反馈控制回路中使用椭圆带通滤波器和切比雪夫低通滤波器,进而改善塔架侧向振动阻尼。以某5 MW变速变桨风力发电机组为验证对象,基于Bladed软件平台对该控制策略进行仿真验证。结果表明:所提出的控制策略能够有效降低塔架的侧向振动位移,且对叶轮转速和电机扭矩没有太大影响。A study was performed on the control strategy of a large variable speed and variable pitch(VSVP) wind turbine with very small structural damping to suppress the side to side vibration of the tower.The side-to-side vibration damping of the tower can be improved by setting an additional torque setpoint based on feedback gain and vibration acceleration measurements of the tower head,and applying the elliptic band-pass filter and Chebyshev low-pass filter in the feeback control loop in the controller design.Simulation for a 5 MW wind turbine with the proposed control strategy was conducted on Bladed software platform.The results show that the proposed control strategy can effectively reduce the side to side displacement without too much influence on rotor speed and generator torque.

关 键 词：风力发电机组 塔架 侧向振动 变速变浆矩 

分 类 号：TM315[电气工程—电机]