振荡浮子波浪发电装置物理模型试验研究

EXPERIMENTAL STUDY ON A HEAVING BUOY WAVE ENERGY CONVERTER

针对中国北方海域波高小、周期短的波浪资源条件,提出一种液压式振荡浮子波浪发电装置并进行蓄能优化,通过水工物理模型全过程试验研究蓄能式振荡浮子波浪发电装置的工作性能,探讨蓄能器初始充压、释放压力对系统输出电能的影响。研究表明:蓄能机构有利于波浪能捕获存储,有助于电能的平稳输出。装置平均输出功率随初始压力的增加先增加后趋于稳定,随释放压力的增加而增加。

A Heaving buoy wave energy converter(HBWEC)is proved feasible in the coastal area with relatively small wave height and short wave period,especially in North China Sea. The Power Take-Off(PTO)of HBWEC is designed with the hydraulic system in which energy accumulators are applied. In this paper,a wave-to-wire test has been conducted,the overall performance of the HBWEC has been studied,and the influences of the initial and discharge pressures have been discussed. The results show that the energy storage mechanism is beneficial to collecting wave energy,under which does the output power of generator increase and does the stability of the system improve. The average output power of the HBWEC increases firstly with the increase of the initial pressure and then maintains a fixed value,and it increases with the increase of the discharge pressure. This study provides guidance for the design optimization of HBWEC.