多浮子式波能装置水动力学性能研究  

Study on Hydrodynamic Performance of Multi-float Wave Energy Converter

作　　者：张颖男 彭伟 ZHANG Ying-nan;PENG Wei(Key Laboratory of Ministry of Education for Coastal Disaster and Protection,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,江苏南京210098

出　　处：《水电能源科学》2023年第8期204-208,共5页Water Resources and Power

基　　金：国家重点研发计划(2022YFB4200700)。

摘　　要：为降低波浪能发电成本,优化波能装置性能,提出一种兼作防波堤的多浮子式波能装置,并通过物理模型试验,探究其水动力学性能。通过控制变量法探究不同动力输出负载阻尼和波浪条件作用下装置附近液面变化、浮子动态响应及装置能量转换情况,分析装置波浪能俘获与防浪消波性能。试验结果表明,装置可以很好地起到防波堤的作用,试验平均透射率为0.48,传递到装置后侧的波浪能量小于入射波的1/4。同时,通过合理配置动力输出负载阻尼,波能装置可有效转换波浪能,在0.64≤kh≤1.39范围内实现能量转换效率大于20%。To decrease the costs associated with wave energy conversion and improve the performance of wave energy converters(WECs),a multi-float WEC that also serves as a breakwater is proposed,and its hydrodynamic performance is explored through physical model tests.The control variable method was used to investigate the free water surface,the dynamic response of the floats,and the energy conversion of the device under different PTO damping loads and wave conditions.These tests allowed for an analysis of the wave energy capture,as well as the device’s ability to prevent and dissipate waves.The test results show that the device functions well as a breakwater,with an average transmittance of 0.48 under typical test conditions,meaning that less than a quarter of the wave energy is transmitted to the rear of the device.Moreover,the device can effectively convert wave energy,with K e exceeding 20%within the range of 0.64≤kh≤1.39 under suitable PTO loads.

关 键 词：波浪能 波能装置 防波堤 水动力性能 试验研究 

分 类 号：TV139.2[水利工程—水力学及河流动力学]