共振波力发电是指发电装置通过主动调整自身自振频率与海浪保持一致，实现高效捕能。其中PTO系统（Power Take-off System，即提能系统）是将波力发电装置所捕获的波浪能量转换为电能输出，其性能好坏极大地影响波力发电装置的转换效率。本课题拟结合现有的研究成果，以实现共振式波力发电PTO系统的最佳功率控制为目标，对PTO系统的特性展开研究。首先对PTO系统的结构原理进行分析，建立其数学模型，通过仿真寻求各部件工作参数间的最佳配置关系；其次，结合内阻尼与外阻尼特性研究PTO系统的阻尼适配特性，分析各种波况下的阻尼匹配关系；第三，探索基于负载的最大功率跟踪控制，研究额定工况和非额定工况下，最佳的主动共振波力发电装置的最大功率控制算法；最后制作试验样机，验证理论分析与仿真研究的匹配性，并获取对共振波浪发电PTO系统设计具有指导意义的特性曲线，创新性地推进波力发电技术进步，并指导工程应用。

The resonant wave power generation means the generation device actively adjusts its natural frequency in line with the wave and could obtain the energy with high efficiency. PTO system (power take-off system) is a part of the generation system, which could convert the wave energy obtained by the generation device into electric energy and greatly influence the conversion efficiency of wave power generating device. Based on the existing research results, the project intends to do some research about the characteristics of the PTO system to realize its optimum power control. Firstly, the project would analyze the principle of the PTO structure and build up the mathematical model in search of the best operating parameter of the components through simulation. Secondly, according to the adaptation features between internal damping and external damping of the PTO system, the project would find out the matching relationship under various wave conditions. Thirdly, explore load-based maximum power tracking controlling and study the maximum power controlling algorithm of the generating device under rated conditions or unrated conditions. Finally, make test prototype to verify the theoretical analysis matching with simulation research, get the pretty suggestive characteristic curve for PTO system to promote the innovative development of wave power generating technology and make guidance for the engineering application.