Wave energy is a kind of clean renewable energy. Power generation is a main form of wave energy utilization. The double floalter WEC is a kind of wave energy converter which has features of simple structure and low cost. To improve its conversion efficiency and reliability, this paper studies the hydrodynamic performance and energy conversion property. Based on the linear wave theory, the equations of motion are established, and the response amplitude operator (RAO) functions of different structures and power function are obtained. At the same time, a hydrodynamic numerical method in the frequency domain is used to calculate the hydrodynamic coefficients for different structures, and the curves of displacement amplitude and output power changing with wave frequency under different conditions are given. Through calculating and analyzing, the laws that describe the performances of movement and energy conversion influenced by the power take-off (PTO) system damping coefficient, device size, quality and wave frequency.
ZHENG Xiongbo
,
ZHANG Liang
,
MA Yong
. Hydrodynamic Calculation and Energy Conversion Performance Analysis of Double Floater Wave Energy Converter[J]. Science & Technology Review, 2014
, 32(19)
: 26
-30
.
DOI: 10.3981/j.issn.1000-7857.2014.19.003
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