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首页> 外文期刊>International journal of green energy >ON CONTROL OF A PITCHING AND SURGING WAVE ENERGY CONVERTER
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ON CONTROL OF A PITCHING AND SURGING WAVE ENERGY CONVERTER

机译：俯仰波能量转换器的控制研究

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摘要

The paper presents a model of a pitching and surging wave-energy converter, investigates the tuning problem in regular seas, and presents a practical tuning technique for time-domain studies in irregular seas. The proposed tuning technique is evaluated on a specific device with defined features in irregular seas where the capabilities of the proposed control approach are assessed. Realistic performance analysis of the proposed technique is performed in time-domain studies where the proposed adaptive technique and some other passive and adaptive tuning methods are used. The passive tuning methods are based on tuning the device's natural frequency to peak and energy frequencies and use fixed power takeoff settings. The proposed adaptive tuning approach employs sliding Discrete Fourier Transform for wave properties estimation. The approach then utilizes the estimated wave properties in optimizing the power capture of a pitching and surging device by adjusting the power takeoff system parameters. The paper also presents details of a comparative study on power capture performances of a pitching-and-surging device with that of a heaving device in the same sea states. The practical implications of the results and recommendations are also presented.
机译：本文提出了俯仰和波涛能量转换器的模型，研究了常规海域的调谐问题，并提出了用于不规则海域时域研究的实用调谐技术。在不规则海域中具有定义特征的特定设备上评估提出的调整技术，在该设备上评估提出的控制方法的能力。在时域研究中对提出的技术进行了实际的性能分析，其中使用了提出的自适应技术以及其他一些被动和自适应调整方法。被动调整方法基于将设备的固有频率调整为峰值和能量频率，并使用固定的功率输出设置。所提出的自适应调谐方法采用滑动离散傅立叶变换进行波属性估计。然后，该方法利用估计的波浪特性，通过调整动力输出系统参数来优化俯仰和喘振装置的动力捕获。本文还介绍了在相同海况下对俯仰和起伏设备与起沉设备的功率捕获性能进行比较研究的细节。还介绍了结果和建议的实际含义。

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