Optimal design of a modular axial‐flux permanent‐magnet synchronous generator for gearless wind turbine applications

IF 4 3区工程技术 Q3 ENERGY & FUELS

Wind Energy Pub Date : 2023-12-15 DOI:10.1002/we.2887

Seyed Ataollah Ashrafzadeh, A. Ghadimi, Ali Jabbari, M. R. Miveh

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引用次数: 0

Abstract

Air‐cored axial‐flux permanent‐magnet synchronous generators (AFPMSGs) are potential candidates for gearless direct‐coupled wind turbines (DCWTs) owing to providing high efficiency and power density. The design of a DCWT generator is so complicated since the generator cost, dimension, and weight affected by gear elimination. Therefore, it is essential to find an optimal AFPMSG design at rated conditions. In this paper, an accurate procedure for the optimal design of an air‐cored AFPMSG applicable for DCWTs is proposed. The genetic algorithm (GA) is used for multi‐objective design optimization to reach the optimal configuration as well as system dimension in order to decrease the weight, increase the power density and enhance the effectiveness of the generator. To validate the efficiency of the suggested optimization proceducer, a 30 kW AFPMSG has been considered as a case study. The results of optimization have been investigated by finite element analysis (FEA). A prototype generator is also fabricated, and the test results are offered and compared with the numerical study. The outcomes show that there exists an acceptable agreement between FEA and experimental outcomes with the error percentage about of 1.35%.

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用于无齿轮风力涡轮机的模块化轴流永磁同步发电机的优化设计

空气芯轴向通量永磁同步发电机（AFPMSG）具有高效率和高功率密度的特点，是无齿轮直接耦合风力涡轮机（DCWT）的潜在候选产品。直流风力发电机的设计非常复杂，因为取消齿轮后，发电机的成本、尺寸和重量都会受到影响。因此，必须找到额定条件下的最佳 AFPMSG 设计。本文提出了一种适用于直流风电机组的空气芯 AFPMSG 优化设计的精确程序。遗传算法（GA）用于多目标优化设计，以达到最佳配置和系统尺寸，从而减轻重量、提高功率密度并增强发电机的功效。为了验证所建议的优化程序的效率，以 30 千瓦 AFPMSG 为案例进行了研究。优化结果已通过有限元分析（FEA）进行了研究。此外，还制作了一台原型发电机，并将测试结果与数值研究结果进行了比较。结果表明，有限元分析和实验结果之间存在可接受的一致性，误差百分比约为 1.35%。

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来源期刊

Wind Energy 工程技术-工程：机械

CiteScore

9.60

自引率

7.30%

发文量

审稿时长

6 months

期刊介绍： Wind Energy offers a major forum for the reporting of advances in this rapidly developing technology with the goal of realising the world-wide potential to harness clean energy from land-based and offshore wind. The journal aims to reach all those with an interest in this field from academic research, industrial development through to applications, including individual wind turbines and components, wind farms and integration of wind power plants. Contributions across the spectrum of scientific and engineering disciplines concerned with the advancement of wind power capture, conversion, integration and utilisation technologies are essential features of the journal.