Improved optimal torque control for large scale floating offshore wind turbines based on interval type-2 fuzzy logic system

IF 4.6 2区工程技术 Q1 ENGINEERING, CIVIL

Ocean Engineering Pub Date : 2025-04-21 DOI:10.1016/j.oceaneng.2025.121186

Shenghua He , Bing Wang , Yuquan Chen

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引用次数: 0

Abstract

As floating offshore wind turbines (FOWTs) evolve toward large capacities, the dynamic response lag caused by large rotor inertia become increasingly significant in the wind energy conversion system (WECS). This paper introduces a novel torque compensation method to enhance the traditional optimal torque control (OTC) response speed. In this improved OTC (IOTC) scheme, the impact of the floating platform pitch motion on aerodynamics is considered. The influence of the torque compensation on system responsiveness and stability is also analyzed. Based on this analysis, an interval type-2 fuzzy logic system (IT2-FLS) is designed to adapt the compensation coefficient adaptively. Multiple simulation experiments are performed on a 15 MW FOWT model to verify the effectiveness of the proposed method. The results show that the proposed approach surpasses traditional OTC and optimal tip speed ratio (TSR) methods in terms of power output. Additionally, introducing the IT2-FLS enhances power stability compared to fixed compensation coefficients and type-1 fuzzy logic systems (T1-FLS).

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基于区间2型模糊逻辑系统的大型浮式海上风电转矩优化控制改进

随着海上浮式风力发电机组向大容量发展，风电转换系统中转子惯量大导致的动态响应滞后问题日益突出。本文介绍了一种新的转矩补偿方法，以提高传统的最优转矩控制（OTC）的响应速度。在这种改进的OTC （IOTC）方案中，考虑了浮动平台俯仰运动对空气动力学的影响。分析了转矩补偿对系统响应性和稳定性的影响。在此基础上，设计了自适应补偿系数的区间2型模糊逻辑系统（IT2-FLS）。在一个15mw的fot模型上进行了多次仿真实验，验证了所提方法的有效性。结果表明，该方法在功率输出方面优于传统的OTC方法和最优叶尖速比（TSR）方法。此外，与固定补偿系数和1型模糊逻辑系统（T1-FLS）相比，引入IT2-FLS提高了功率稳定性。

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来源期刊

Ocean Engineering 工程技术-工程：大洋

CiteScore

7.30

自引率

34.00%

发文量

2379

审稿时长

8.1 months

期刊介绍： Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.