Abstract
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 an improved independent pitch control was proposes. In allusion to the inaccurate system modeling of OFWT due to the complex load environment, an advanced control approach consisting of an optimal multivariable LQG controller, a feed forward disturbance rejection controller based on estimated wind speed signals and a memory-based compensation was studied, which effectively reduces the asymmetric aerodynamic loads and platform movement. The control approach is tested and compared with the traditional IPC method in simulation studies with the NREL-5 MW OFWT run on FAST and Matlab/Simulink operating above rated wind speed. Analysis and simulation results showed that compared with the traditional IPC, improved controller demonstrates a better performance in reducing fatigue loads, vibration platform and power tracking.
A floating platform hydrodynamics and mooring system mathematical model was established, then an improved independent pitch control was proposes. In allusion to the inaccurate system modeling of OFWT due to the complex load environment, an advanced control approach consisting of an optimal multivariable LQG controller, a feed forward disturbance rejection controller based on estimated wind speed signals and a memory-based compensation was studied, which effectively reduces the asymmetric aerodynamic loads and platform movement. The control approach is tested and compared with the traditional IPC method in simulation studies with the NREL-5 MW OFWT run on FAST and Matlab/Simulink operating above rated wind speed. Analysis and simulation results showed that compared with the traditional IPC, improved controller demonstrates a better performance in reducing fatigue loads, vibration platform and power tracking.
| Translated title of the contribution | Research on individual pitch contrul of offshore floating wind turbines based on loads optimization |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 2292-2299 |
| Number of pages | 8 |
| Journal | 太阳能学报 = Acta Energiae Solaris Sinica |
| Volume | 36 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 2015 |
| Externally published | Yes |
Funding
资助基金 : 国家重点基础研究发展计划 (973计划) (2012CB215202); 国家自然科学基金 (51205046); 中央高校基本科研业务费专项 (CDJZR170008)
Keywords
- 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
- Barge platform
- Fatigue load optimization
- Individual pitch control (IPC)
- Memory-based Method
- Offshore wind turbine
