基于方位角权系数分配的独立变桨距控制

发布时间：2018-05-25 19:58

本文选题：气动载荷 + 方位角　；参考：《控制工程》2014年06期

【摘要】：风力发电机组功率不断提升,风机桨叶随之增大,风机在额定风速以上运行时,桨叶所受气动载荷逐渐增大,为风机安全运行埋下了隐患,因此希望减小这一载荷。针对这一问题,在充分分析风电机组结构及其运行规律的基础上,依据空气动力学原理,提出了一种基于桨叶方位角权系数分配的独立变桨距控制方法。同时,针对风机输出功率要求稳定的目标,设计了一种模糊-PID控制器。仿真结果表明,风机在高于额定风速以上运行时,这种模糊-PID控制下,基于桨叶方位角权系数分配的独立变桨距控制策略,可以改善风机输出功率并有效地减小桨叶气动载荷。
[Abstract]:As the power of wind turbine increases continuously, the blade of wind turbine increases, and when the wind turbine is running above rated wind speed, the aerodynamic load on the blade increases gradually, which buries a hidden danger for the safe operation of the fan, so it is hoped to reduce this load. In order to solve this problem, an independent variable pitch control method based on the distribution of azimuth weight coefficient of propeller blade is proposed on the basis of fully analyzing the structure of wind turbine and its operation law, and according to the principle of aerodynamics. At the same time, a fuzzy-pid controller is designed for the stable output power of fan. The simulation results show that when the fan is running above the rated wind speed, the fuzzy-PID control strategy based on the allocation of azimuth weight coefficient of the blade can improve the output power of the fan and effectively reduce the aerodynamic load of the blade.
【作者单位】：辽宁工程技术大学电气与控制工程学院;辽宁机电职业技术学院黄海汽车工程学院;
【基金】：辽宁省教育厅科学技术研究(2007T075)
【分类号】：TM315

【参考文献】