基于单自由度强迫振动的直线波浪发电系统研究

摘要

针对海洋环境中波浪发电系统存在腐蚀严重、冲击大的问题,对全密封式直线波浪发电系统的物理模型、电能转换、磁力线和磁通分布等方面进行了研究,对系统内电磁阻尼的改变导致发电动子位移幅值变化进行了分析,提出了一种基于单自由度强迫振动的直线波浪发电系统,基于Ansoft对直线波浪发电系统的磁场进行了仿真分析,使用单自由度强迫振动模型对发电动子的运动进行了分析,利用波浪水池对发电系统进行了定性实验.研究结果表明,直线波浪发电系统的全密封方式能解决发电部分腐蚀严重的问题,发电动子位移幅值的可控性减少了系统的冲击,磁力线和磁通分布均匀,系统整体可以跟随波浪一起运动.%Aiming at the problem that wave power generation system has serious corrosion and large impact in marine environment, the physi-cal model, electric energy conversion, magnetic field lines and magnetic flux distribution of a fully enclosed linear wave power generation sys-tem was studied. The change of electromagnetic damping in the system which leads to the variation of dynamotor displacement amplitude was analyzed. Therefore, a linear wave generation system based on forced vibration of single-degree-of-freedom was proposed. Based on Ansoft, magnetic field of the linear wave power generation system was simulated. The motion of dynamo was analyzed by using Forced Vibration of Single-degree-of-freedom model. Wave pool was used to carry on qualitative experiment of this system. The results indicate that the whole sealed way of linear wave power generation system can solve the serious problem of corrosion for power generation part and the controllability of dynamo displacement amplitude reduces the impact of system. Magnetic field lines and magnetic flux distribution is uniform. The system can follow wave oscillation.