以基于涡簧-飞轮式能量输出系统（PTO）的水平摆式波能装置为研究对象,将涡簧刚度、飞轮转动惯量作为研究变量,通过试验验证和数值模拟的方法构建装置全耦合数值模型,对装置多自由度下的获能进行研究。研究表明,在装置内部安装涡簧-飞轮式PTO可提高装置获能的稳定性,同时可增大波能装置的发电带宽。在规则波况下,装置的功率标准差与涡簧刚度呈正相关,与飞轮转动惯量呈负相关,这一现象在共振周期附近更加显著。
Abstract
Taking a horizontal pendulum wave energy converter （WEC） based on a spiral spring-flywheel power take-off （PTO） system as research object, considering the spring stiffness and flywheel moment of inertia as variables, a fully coupled numerical model of the WEC is constructed to investigate energy acquisition under multiple degrees of freedom through model test and numerical simulation. The research shows that installing a spiral spring-flywheel PTO can enhance the stability of energy acquisition and increase the power generation bandwidth of the WEC. Under regular wave conditions, the standard deviation of power is positively correlated with the spring stiffness and negatively correlated with the flywheel moment of inertia, with this phenomenon being more pronounced near the resonance period.
关键词
波能转换 /
摆体 /
弹簧 /
飞轮 /
获能 /
稳定性
Key words
wave energy conversion /
pendulums /
springs /
flywheels /
energy acquisition /
stability
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基金
大连理工大学海岸和近海工程国家重点实验室开放基金（LP2312）; 山东省自然科学基金（ZR2022ME002）; 国家自然科学基金重点项目（U22A20216）; 国家自然科学基金（52271297）
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