Power Control Method for Floating Offshore Wind Turbines Based on Wave Interval Estimation and Prediction

XU Yuhan; WU Zelong; SONG Ziqiu; WEI Le; FANG Fang

doi:10.19805/j.cnki.jcspe.2025.240741

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Power Control Method for Floating Offshore Wind Turbines Based on Wave Interval Estimation and Prediction

更新时间：2025-10-16

- Power Control Method for Floating Offshore Wind Turbines Based on Wave Interval Estimation and Prediction
- Chinese Journal of Power Engineering Vol. 45, Issue 5, Pages: 706-713(2025)
- 作者机构：
  
  华北电力大学控制与计算机工程学院,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240741
  CLC： TK83;TP273
- Published Online：19 May 2025，
  
  Published：2025
- 稿件说明：
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许昱涵,吴泽龙,宋子秋,魏乐,房方. 基于波浪区间估计与预测的漂浮式风机功率控制方法动力工程学报, 2025, 45(5): 706-713 https://doi.

org/10.19805/j.cnki.jcspe.2025.240741
许昱涵,吴泽龙,宋子秋,魏乐,房方. 基于波浪区间估计与预测的漂浮式风机功率控制方法动力工程学报, 2025, 45(5): 706-713 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240741.

org/10.19805/j.cnki.jcspe.2025.240741 DOI：

摘要

波浪是造成漂浮式风机功率波动的重要影响因素

并阻碍其规模化并网。为减小波浪对风机出力的影响

提出了一种基于波浪区间估计与预测的漂浮式风机功率控制方法。考虑漂浮式风机工作在额定风速以上区间的额定功率跟踪控制问题

建立了大惯性特性下带有输入时滞的漂浮式风机模型和波浪干扰模型

设计了一种基于波浪区间估计的波浪预测器

进而提出了一种基于波浪补偿与积分滑模控制的复合时滞控制策略。基于FAST-Matlab/Simulink联合仿真环境模拟半潜式漂浮式风机在所提控制策略下的运行状态

并与传统比例积分(PI)控制下的系统响应进行对比。结果表明:所提出的功率控制策略可有效补偿波浪干扰对漂浮式风机带来的影响

降低风机出力波动

可以为漂浮式风机控制系统的设计提供参考。

Abstract

Wave is a main contributor to the power fluctuations in floating offshore wind turbines (FOWTs)

and therefore challenges the large-scale grid integration of FOWTs. To reduce the impact of waves on wind turbine power

a power control method for floating turbines based on wave interval estimation and prediction was proposed. Focusing on the rated power tracking control of the FOWT above the rated wind speed

a FOWT model with input time delay under large inertia and a wave disturbance model were established

a wave predictor based on wave interval estimation was designed

and then a composite time-delay control strategy was developed combining wave compensation and integral sliding mode control. The operation of a semi-submersible FOWT under the present control strategy was simulated using a FAST-Matlab/Simulink co-simulation environment and compared to the system response under traditional PI control. Results show that the proposed power control strategy can effectively compensate for the impact of wave disturbances on FOWTs

significantly reduce power output fluctuations

and provide a reference for the design of control systems for floating wind turbines.

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references

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