针对小型海洋观测仪器用电需求,研究高效、可靠的小型液压式波浪能装置能量转换系统。在实验室建立一套3 kW的液压式波浪能能量转换系统,进行不同电阻负载、不同蓄能体积以及不同控制策略的液压系统试验,获得PTO效率曲线及各发电过程的特性曲线,详细分析不同控制策略的能量转换特性,得到PTO效率随阻值的增大趋于平稳、蓄能体积基本不影响PTO转换效率的结论,验证有蓄能器无控制器型直冲式能量转换系统的可行性。
Abstract
For the electricity demand of small ocean observation instruments, an efficient and reliable energy conversion system of small hydraulic wave energy device is studied. A set of 3 kW hydraulic wave energy conversion system is established in the laboratory. Hydraulic system tests with different resistance, different energy storage volumes and different control strategies are carried out to obtain the PTO efficiency curve and the characteristic curve of each power generation process, to analyze the energy conversion characteristics of the different control strategies in detail. It is concluded that the PTO efficiency tends to be stable with the increase of resistance and the energy storage volume has no effects on the conversion efficiency of PTO. The feasibility of the direct impact energy conversion system with accumulator and without controller is verified.
关键词
波浪能 /
能量转换 /
转换效率 /
蓄能系统 /
液压式
Key words
wave power /
energy conversion /
conversion efficiency /
energy storage system /
hydraulic
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基金
国家重点研发计划（2019YFB1504402）; 中国科学战略性先导科技专项（XDA13040202）; 南方海洋科学与工程广东省实验室（广州）人才团队引进重大专项（GML2019ZD0107）; 广东省海洋经济发展（海洋六大产业）专项资金项目（粤自然资合[2020]022号）
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