双体船式波浪能发电系统实验测试研究

EXPERIMENTAL TEST STUDY OF WAVE ENERGY GENERATION SYSTEM WITH CATAMARAN PLATFORM

提出双体船式波浪能发电试验平台,将船体和波浪浮子简化为大小2种浮子,建立双浮子波浪能捕获理论模型。针对波浪能间歇性强的特点,设计波浪能捕获-液压蓄能稳压-液压马达驱动发电机发电系统,并通过实验室拖动发电实验建立流量-压力-比例伺服阀开口度的关系曲线,实验结果证明通过实时调节比例伺服阀开口度实现发电功率的稳定是可行的。最后,将发电系统安装到试验平台,开展单个小浮子和2个小浮子波浪能捕获的海上测试。海试结果表明,该方法具有良好的稳定发电效果;浮子数量越多,波浪来能越大,发电功率越稳定。

This paper proposed a wave energy conversion and electrical generation test platform with catamaran shapes.Through simplifying the hull and wave buoy into two type of floats,i.e. big and small buoys,a theoretical model of wave energy convertor system with double buoy was established. Aiming at the intermittent feature of wave energy,a wave power generator was designed,witch includes wave energy capture part,hydraulic energy stabilize part and hydraulic motor driven par. In the paper,the relationship among the flow,pressure and opening ratio of proportional servo valve is established through power generation experimental test in laboratory. The experimental results prove that it is feasible to stabilize the power generation by adjusting the opening ratio of the proportional servo valve in real time. Finally,the power generation system was installed on the test platform with catamaran shapes,and a series of sea tests for single small buoy and two small buoys wave energy captures were carried out respectively. The sea test results show that it has well stabilize performance with the method above. With the increase of the number of buoys and the increase of the wave energy,the electrical power generation become more stable.