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铰接式基础风力机多目标优化及动力响应研究

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
针对一种新型铰接式基础风力机的基础结构设计与优化问题，综合考虑风力机运行安全稳性、经济成本及运动性能等多方面因素，本文建立了高维三目标优化数学模型，采用一种基于参考点的非支配排序多目标遗传算法(NSGA-Ⅲ)对风力机基础结构尺寸进行优化设计研究，利用模糊优选方法，对所得到的帕累托解进行模糊评价，得到满足不同评价指标下的最优方案;并在此基础上，采用空气动力-水动力-结构耦合分析方法，利用Matlab在时域内编写运动控制方程进行动力响应分析。计算结果表明:额定风速海况下，所设计的铰接式基础风力机满足安全发电作业要求，同时相比于初始设计方案，基于多目标优化算法及模糊评价所设计的基础结构无论是运动及载荷性能都更加优越，经济成本更低;相关算法及优化流程也为后续不同基础形式的优化设计工作提供了新思路和参考。
Multiobjective optimization and dynamic response of an offshore wind turbine with an articulated foundation
Aiming at the foundation design and optimization of a new type of wind turbine with an articulated foundation,a high-dimension mathematical model with three-objective optimization is established by comprehensively considering the operational safety and stability,economic cost,and motion performance of an articulated offshore wind turbine.The model adopts a type of nondominated sorting multiobjective genetic algorithm(NSGA-Ⅲ)based on the reference points to optimize the foundation dimension of the wind turbine and uses the fuzzy optimization method to perform fuzzy evalua-tion on the obtained Pareto solution,thereby obtaining the optimal scheme satisfying different evaluation indices.Based on this,the aerodynamic,hydrodynamic,and structural coupling analysis method was adopted to construct the motion control equation in the time domain for the analysis of the dynamic response.The calculation results showed that under the rated wind speed and oceanic conditions,the designed wind turbine with an articulated foundation meets the require-ment of safe power generation.Meanwhile,compared with the initial design scheme,the articulated foundation structure based on the multiobjective optimization algorithm and fuzzy evaluation displays superior motion and load performance and is more economical.The related algorithm and optimization process also provide a new idea and reference for subse-quent optimization design work with different foundational forms.

nondominated sortingmultiobjective genetic algorithmoptimization designfuzzy optimizationfuzzy evaluationevaluation indexcoupling analysisdynamic response

章培、李焱、唐友刚、杨树耕、曲晓奇

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天津大学 水利工程仿真与安全国家重点实验室, 天津 300350

天津大学 港口与海洋工程天津市重点实验室, 天津 300350

天津大学 建筑工程学院,天津 300350

非支配排序 多目标遗传算法 优化设计 模糊优选 模糊评价 评价指标 耦合分析 动力响应

国家自然科学基金国家自然科学基金中国博士后科学基金天津市自然科学基金上海交通大学海洋工程国家重点实验室项目

52001230518791882021T14050621JCQNJC00330GKZD010081

2024

10.11990/jheu.202107026

哈尔滨工程大学学报
哈尔滨工程大学

哈尔滨工程大学学报

CSTPCD北大核心
影响因子：0.655
ISSN：1006-7043
年,卷(期)：2024.45(1)
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