基于载荷优化的漂浮式海上风力发电机组变桨距控制研究  

RESEARCH ON INDIVIDUAL PITCH CONTRUL OF OFFSHORE FLOATING WIND TURBINES BASED ON LOADS OPTIMIZATION

作　　者：左姗[1] 王磊[2] 宋庆旺 宋永端[1,2] 

机构地区：[1]智能系统和可再生能源技术实验室,电子科技大学自动化学院,成都611731 [2]智能系统与新能源技术研究院,重庆大学自动化学院,重庆400044

出　　处：《太阳能学报》2015年第9期2292-2299,共8页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究发展(973)计划(2012CB215202);国家自然科学基金(51205046);中央高校基本科研基金(CDJZR170008)

摘　　要：首先建立漂浮式平台流体动力学模型,重点提出一种变桨距控制的改进方案,针对复杂载荷环境导致的海上风力机系统建模不精确,利用基于先进记忆的控制策略进行桨距角补偿,有效减少了不对称气动载荷和平台运动。基于FAST和Matlab/Simulink软件平台以NREL-5 MW漂浮式海上风电机组为仿真模型验证改进控制器的有效性。分析和仿真结果表明,相比传统的独立变桨控制,改进的控制器在减少疲劳载荷和平台振荡有更好的性能,提高了系统的稳定性和可靠性。A floating platform hydrodynamics and mooring system mathematical model was established,then animproved independent pitch control was proposes. In allusion to the inaccurate system modeling of OFWT due to thecomplex load environment,an advanced control approach consisting of an optimal multivariable LQG controller,a feedforward disturbance rejection controller based on estimated wind speed signals and a memory-based compensation wasstudied,which effectively reduces the asymmetric aerodynamic loads and platform movement. The control approach istested and compared with the traditional IPC method in simulation studies with the NREL-5 MW OFWT run on FAST andMatlab/Simulink operating above rated wind speed. Analysis and simulation results showed that compared with thetraditional IPC,improved controller demonstrates a better performance in reducing fatigue loads,vibration platform andpower tracking.

关 键 词：海上风力发电机组 驳船浮式平台 独立变桨控制(IPC) 疲劳载荷优化 先进记忆控制 

分 类 号：TM315[电气工程—电机]