通过LC调谐的无功PTO力从变化的海浪中获取最大发电量
Maximal electric power generation from varying ocean waves with LC-tuned reactive PTO force
AI总结:
针对无功PTO力物理实现难的问题,提出LC调谐型波浪能转换器,通过调谐LC网络使装置与波浪力共振以实现宽频率范围最大发电,经数学分析与仿真验证了方案的有效性。
摘要:
无功动力输出(Power Take Off,PTO)力是让波浪能转换器(Wave Energy Converters,WECs)从频率可变的海浪中最大化吸收机械功率与发电量的关键,但由于物理实现难度大,相关研究十分有限。本文提出了一种简单且有效的LC调谐型WEC,其通过装置内部的可调电感器L和电容器C产生可调的无功PTO力。论文首先推导了WEC的完整闭环系统模型,随后通过分析该模型得到三条定量规则。这些规则用于调谐LC网络,进而调谐驱动WEC的无功PTO力,使其与输入波浪力产生共振,从而在一定波浪频率范围内实现最大发电量。通过对WEC及调谐规则的数学分析,得到了关于WEC机械功率吸收、有功与无功发电量及功率因数、最优电阻负载,以及发电机和LC容量需求的解析化与定量描述。仿真结果证明了所提WEC的有效性与优势,也验证了分析结果的正确性。
英文摘要:
The reactive Power Take Off (PTO) force is the key to maximizing mechanical power absorption and electric power generation of Wave Energy Converters (WECs) from ocean waves with variable frequency, but its study is limited due to its difficulty in physical realization. This paper presents a simple yet effective $LC$-tuned WEC that generates a tunable reactive PTO force from tunable inductor $L$ and capacitor $C$ in the WEC. A complete closed loop system model of the WEC is derived first, then three quantitative rules are obtained from analyzing the model. These rules are used to tune the $LC$ network, and hence the reactive PTO force that drives the WEC, to resonate with the input wave force and generate maximal electric power over a range of wave frequencies. Mathematical analysis of the WEC and tuning rules reveals the analytical and quantitative descriptions of the WEC's mechanical power absorption, active and reactive electric power generation and power factor, optimal electric resistance load, and the generator and $LC$ capacity requirements. Simulation results show the effectiveness and advantages of the proposed WEC and verify the analysis results.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。