基于柔性叶片模型的独立变桨减载控制  

Load shedding control for independent pitch based on flexible blade model

作　　者：王大为[1] 陶学军 卢晓光 

机构地区：[1]许继集团有限公司,河南许昌461000 [2]许继电气股份有限公司,河南许昌461000

出　　处：《电力系统保护与控制》2012年第16期111-115,共5页Power System Protection and Control

摘　　要：为减小大型风机叶片疲劳载荷,针对某1.5MW变速变桨风力发电机组模型进行研究。利用WRTS-800和PRDS-600仿真实验平台进行仿真,分析了叶片周期性及时变性载荷源的特性。建立了用于仿真叶片振动情况的柔性叶片模型,得到了基于减小叶片疲劳载荷的、在时间域和空间域实时优化控制的独立桨叶控制策略。仿真结果表明,该控制策略与传统集中变桨控制策略相比,可减小叶根面外等效疲劳载荷4.2%以上。A 1.5 MW variable speed variable pitch wind turbine is studied to reduce the fatigue load. WRTS-800 and PRDS-600 simulation platform developed by XJ Corporation are used to analyze the periodic and time-varying loads. Flexible blade model which is used for simulation of blade vibration is also established. Based on time domain and space domain real-time optimal control, the independent pitch control strategy is proposed by reducing the blade fatigue loads. Compared with the traditional pitch control strategy, the proposed strategy can reduce the equivalent fatigue load of blade roots by at least 4.2%.

关 键 词：柔性叶片 独立变桨 疲劳载荷 仿真 

分 类 号：TM315[电气工程—电机]