Point Absorber with Direct-Drive Power Take-Off System for Low Wave Application

2021 IEEE Conference on Energy Conversion (CENCON) Pub Date : 2021-10-25 DOI:10.1109/CENCON51869.2021.9627273

A. Ishak, A. Hasim, S. F. S. Dardin, J. Burhanudin, T. Ibrahim

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Abstract

A direct-drive system with a permanent magnet linear generator has been an attractive solution for wave energy converter devices. Exploiting the reciprocating movement of wave motion has enabled the application of linear generators to wave energy converter devices. This paper presents the computational simulation of the Permanent Magnet Linear Generator design for a point absorber wave energy converter. The electromagnetic analysis was done using the Finite Element Analysis software, ANSYS. With this analysis, results on the flux distribution, air gap flux density and open-circuit results of the proposed design were gathered. A lab-scale device was constructed to validate a simple version of a single-phase linear generator design. A comparative study of both simulation and experimental results of the linear generator was carried out. Based on the results, the percentage error between simulation and experimental obtained was acceptable. To maximize power generation, an improved version of the linear generator based on an actual ocean profile was proposed.

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点减震器与直接驱动动力起飞系统的低波应用

采用永磁直线发电机的直接驱动系统已成为波能转换装置的一种有吸引力的解决方案。利用波浪运动的往复运动，使线性发电机应用于波能转换装置。本文介绍了用于点吸收波能转换器的永磁直线发电机设计的计算仿真。采用有限元分析软件ANSYS进行电磁分析。通过分析，收集了设计方案的磁通分布、气隙磁通密度和开路结果。构建了一个实验室规模的设备来验证单相线性发电机设计的简单版本。对线性发电机的仿真结果和实验结果进行了对比研究。结果表明，仿真结果与实验结果的百分比误差是可以接受的。为了最大限度地提高发电量，提出了一种基于实际海洋剖面的线性发电机的改进版本。

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2021 IEEE Conference on Energy Conversion (CENCON)

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