基于主客观权重集成法的OWC装置波能转换效率评价

OWC装置的结构形式繁多,共振周期也各不相同,全面合理地评价OWC装置的工作性能具有重要的现实意义。为优化OWC装置的工程选型,文章基于主客观权重集成法,分别采用层次分析法和熵值法计算峰值波能转换效率、一级衰减和二级衰减3个指标的主观权值和客观权值,并通过优化模型进行组合,从而确定综合权值;利用3个指标的综合权值,对4种不同结构的OWC装置的平均波能转换效率进行评分,并对评分结果进行验证和分析。研究结果表明:在所选的4种装置结构中,圆截面U-OWC的评分最高,即具有最高的平均波能转换效率;与传统OWC结构相比,U-OWC结构的平均波能转换效率较高,在实际工程中有更好的表现,在满足条件时宜优先采用。

Performance Evaluation of Wave Energy Conversion Efficiency of OWC Device Based on Subjective and Objective Weight Integration

The OWC devices have a variety of structural forms and different resonance periods.How to comprehensively and reasonably evaluate the working performance of the OWC device is a subject of practical significance.Based on the subjective and objective weight integration method,this paper used AHP and Entropy Method to calculate subjective weight and objective weight of maximum wave energy conversion efficiency,first-order attenuation and second-order attenuation respectively,and combined them through optimization model to obtain the comprehensively weight.According to the comprehensively weights of 3 indexes,the average wave energy conversion efficiency of OWC devices with 4 different structures was comprehensively marked.Verification and analysis were carried out with the score and suggestions for engineering selection of OWC devices were provided.The results showed that the dual-cylindrical U-OWC structure had the highest score among the 4 OWCs selected.So it had the highest average wave energy conversion efficiency.Compared with the traditional OWC structure,the U-OWC structure had higher average wave energy conversion efficiency,therefore,had better performance in practical engineering.