Halbach array linear alternator for thermo-acoustic engine
Halbach array linear alternator for thermo-acoustic engine
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DOI：
10.1016/j.sna.2012.01.042
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发表时间：
2012-05
影响因子：
4.6
通讯作者：
C. Saha;P. Riley;J. Paul;Zhibin Yu;A. Jaworski;C. M. Johnson
中科院分区：
文献类型：
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作者：
C. Saha;P. Riley;J. Paul;Zhibin Yu;A. Jaworski;C. M. Johnson
本文针对SCORE项目，重点研究了一种热声驱动低成本直线发电机的设计问题。SCORE(www.Scotre.uk.com)旨在改善发展中国家农村社区约20亿贫困人口的生活质量。介绍了双Halbach阵列永磁动圈交流发电机结构作为直线发电机相对于传统扬声器的优点。对采用整流电路的直线交流发电机在不同线圈配置下的理论分析进行了阐述，并用有限元仿真结果进行了分析。仿真结果表明，线圈匝数较少的双线圈结构更适合本工程。讨论了搭建和测试的双Halbach阵列样机的实验结果，并与仿真结果进行了比较。
This paper focuses on the design issues of a thermo-acoustically driven low-cost linear alternator for the SCORE project. SCORE (www.score.uk.com) aims to improve the quality of life around 2 billion poor people in the rural communities of the developing countries. The advantage of the double Halbach array permanent magnet moving coil alternator structure over traditional loudspeaker as a linear alternator is presented. The theoretical analysis of the linear alternator at different coil configurations with the rectifier circuit is explained and analysed with the finite elements simulation results. The simulation results show that the double coil structure with the smaller number of coil turns would be suitable for this project. The experimental results of the double Halbach array prototype which has been built and tested are discussed and compared with the simulation results.