摘要
控制方法可以以提高风能捕捉率和减少风力发电机组动态载荷来提高整机性能。用叶轮统一变桨控制方法来调节额定转速以上区域的叶轮转速,提高传动链模态中的阻尼。在现代控制论的基础上,对风力发电机组进行线性化计算,应用状态评估方法来减少整机的测量对象,用线性最优控制来调整反馈增益,用DAC控制来清除风扰动。作者建立了基于FAST风力发电机结构动力学软件和Simulink联合仿真下的现代控制仿真模型,将结果与PI控制方法进行对比,体现了现代控制算法的优越性。
Control method can improve the comprehensive performance of wind turbines by ways of improving the capture rate of wind and reducing dynamic load. The control method of collective pitch was used to adjust rotor speed and improve damping in the drive chain mode above the rated speed. On the basis of modern control theory, wind turbines were proceed with linearization calcula- tion, the condition assessment method was used, as well as linear optimal control and DAC control to reduce the measurement of the object, adjust feedback gain and clear the wind disturbance. Based on FAST structure dynamics software and MATLAB/Simulink soft- ware for the wind turbines, the modern control simulation model was established. The result compared with PI control method reflects the superiority of modern control algorithm.
出处
《机床与液压》
北大核心
2013年第17期131-134,共4页
Machine Tool & Hydraulics
基金
国家自然科学基金项目(51065026)
新疆维吾尔自治区自然科学基金项目(2011211A002)
高等学校博士学科点专项科研基金项目(20106501110002)
