系泊双浮体波能转换装置的水动力性能
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摘要
采用理论分析和数值计算的方法对振荡浮子式系泊双浮体波能转换装置的水动力性能进行分析。利用AQWA-LINE模块建立单浮体、双浮体模型,计算得到单浮子和浮筒及二者相互耦合的水动力参数,并通过Mathematica编程迭代计算得到单浮体、双浮体波能转换装置的垂荡运动响应RAO(Response Amplitude Operator)和能量俘获宽度比。通过分析计算结果,得到能量俘获宽度比η在不同PTO(Power Take-Off)阻尼、不同非线性系数α和不同波浪频率下的变化规律。
The hydrodynamic performance of the oscillating-buoy type moored double-floating-body wave energy converter is studied through theoretical analysis and numerical calculation. The single and double floating body models are established by using the AQWA-LINE module of ANSYS. The individual hydrodynamic parameters of the upper buoy and the lower buoy and the coupled hydrodynamic parameters of them are calculated. The heave response RAO(Response Amplitude Operator) and the energy capture width ratio of the single and double floating body wave energy converters are obtained through the operation of the iterative Mathematica program. By analyzing the calculated results, the law of the energy capture width ratio under different PTO(Power Take-Off) damping, different nonlinear coefficient α and different wave frequencies is determined.
The hydrodynamic performance of the oscillating-buoy type moored double-floating-body wave energy converter is studied through theoretical analysis and numerical calculation. The single and double floating body models are established by using the AQWA-LINE module of ANSYS. The individual hydrodynamic parameters of the upper buoy and the lower buoy and the coupled hydrodynamic parameters of them are calculated. The heave response RAO(Response Amplitude Operator) and the energy capture width ratio of the single and double floating body wave energy converters are obtained through the operation of the iterative Mathematica program. By analyzing the calculated results, the law of the energy capture width ratio under different PTO(Power Take-Off) damping, different nonlinear coefficient α and different wave frequencies is determined.
引文
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[2] 余志.海洋波浪能发电技术进展[J].海洋工程,1993,11(1):86-93.
[3] 李成魁,廖文俊,王宇鑫.世界海洋波浪能发电技术研究进展[J].装备机械,2010(2):68-73.
[4] 戴仰山,沈进威,宋竞争.船舶波浪载荷[M].北京:国防工业出版社,2007:63-145.
[5] 洪礼康.漂浮式液压海浪发电装置锚泊系统研究[D].济南:山东大学,2014.
[6] 高人杰.组合型振荡浮子波能发电装置研究[D].青岛:中国海洋大学,2012.
[7] 马哲.振荡浮子式波浪发电装置的水动力学特性研究[D].青岛:中国海洋大学,2013.
[8] 林礼群,吴春旭,吴必军.双浮体波能装置的功率转换特性研究[J].上海海洋大学学报,2014,23(3):475-480.
[9] 郑雄波,张亮,马勇.双浮体波能装置的水动力计算与能量转换特性分析[J].科技导报,2014,32(19):26-30.
[10] 戴佑明.一种漂浮式双浮体波浪能发电装置的研究[D].广州:华南理工大学,2015.
[11] 蔡炳清.双浮体式振荡浮子波浪能捕获装置的研究[D].太原:太原科技大学,2014.
[12] BUDAL K,FALNES J.Status 1983 of the Norwegian Wave-Power Buoy Project[J].Tsurumi Shigaku Tsurumi University Dental Journal,2012,6(2):199-205.