Performance improvement of synchronous permanent magnet generator for oscillating water column (OWC) wave energy converter

2016 IEEE International Conference on Power and Energy (PECon) Pub Date : 2016-11-01 DOI:10.1109/PECON.2016.7951666

Perumal Nallagowden, Ravi Varma, A. Memonn

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引用次数: 3

Abstract

This paper presents the performance analysis and improvement of electric power generation for Oscillating Water Colum (OWC) wave energy converter using Finite Element Analysis (FEA). The existing power take-off system in OWC is based on induction machines which not only suffer from poor efficiency but require significant maintenance also. Conversely, synchronous permanent magnet (PM) generators offer numerous advantages and are adopted largely in wave energy conversion systems. This work proposes a synchronous permanent magnet (PM) generator with segmented magnets which enhances the electromagnetic characteristics and improves the efficiency as compared to conventional generators. In order to determine electromagnetic performance FEA has been carried out, two modes; no-load and full-load operations are analyzed in detail. The proposed synchronous permanent magnet (PM) generator is compared with conventional and the results such as; magnetic flux density, induced-voltage and flux linkage along with efficiency evaluation are presented.

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振荡水柱(OWC)波能转换器同步永磁发电机性能改进

本文采用有限元分析方法对振荡水柱(OWC)波浪能转换器的发电性能进行了分析和改进。OWC现有的动力输出系统是基于感应电机的，不仅效率低，而且需要大量的维护。相反，同步永磁(PM)发电机具有许多优点，在波浪能转换系统中被广泛采用。本文提出了一种采用分段磁体的同步永磁发电机，与传统发电机相比，该发电机增强了电磁特性，提高了效率。为了确定电磁性能，进行了有限元分析，两种模式;详细分析了空载和满载运行情况。将所提出的同步永磁发电机与常规永磁发电机进行了比较，结果如下;给出了磁通密度、感应电压和磁通链以及效率评价。

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2016 IEEE International Conference on Power and Energy (PECon)

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