自适应双稳态浮子式波浪能发电装置虽然解决了双稳态系统在入射波的振幅较小时可能难以跨越势垒的问题,但其效率仍有提升空间.既往研究已证实装置参数改变会对装置性能造成较大影响,而且最优装置参数均与此时的谱峰频率有较大关联.因此,对装置进行控制研究时,在假定一段时间内谱峰频率可预测的前提下设计控制方案,相应调节装置参数可实现提高效率的目的.选取3个控制参数,通过仿真计算确定不同谱峰频率下最优装置参数库;然后,在仿真计算程序中加入控制模块,利用插值法对参数进行控制.结果表明:施加可变参数控制的装置可获得更好的能量捕获效率.

Although the adaptive bistable wave energy generation device solves the problem that the bistable system may be difficult to cross the barrier when the amplitude of the incident wave is small, its efficiency can still be improved. Previous studies have proved that the change of the parameters of the device will have a great impact on its performance, and the optimal device parameters are closely related to the spectral peak frequency at a given time. Therefore, in the control study of the device, a control scheme is designed and the device parameters are adjusted accordingly in order to improve efficiency assuming that the peak frequency within a period of time is predictable. In this study, three control parameters are selected, and the optimal device parameter library with different spectral peak frequencies is determined by simulation calculation. The control module is then added to the simulation program to control the parameters by interpolation. The results show that the device with variable parameter control improves energy capture efficiency.