新型圆筒型错相式横向磁通永磁直线发电机结构及其漏磁分析与优化  

Magnetic Leakage Analysis and Optimization of Novel Tubular Staggered Transvers Flux Permanent Magnet Linear Generator

作　　者：邱书恒 黄元峰[2] 艾程柳[2] 王海峰[2] 钱卉 朱杭钢 QIU Shuheng;HUANG Yuanfeng;AI Chengliu;WANG Haifeng;QIAN Hui;ZHU Hanggang(University of Chinese Academy of Sciences,Shijingshan District,Beijing 100049,China;Institute of Electrical Engineering,ChineseAcademy of Sciences,Haidian District,Beijing 100049,China;State Grid Zhejiang Chun'an County Power Supply Co.,Ltd.,Hangzhou 311700,Zhejiang Province,China;Chun'an County Electric Power Industry Co.,Ltd.Power Distribution Service Branch,Hangzhou 311700,Zhejiang Province,China)

机构地区：[1]中国科学院大学,北京市石景山区100049 [2]中国科学院电工研究所,北京市海淀区100049 [3]国网浙江淳安县供电有限公司,浙江省杭州市311700 [4]淳安县电力实业有限公司供配电服务分公司,浙江省杭州市311700

出　　处：《中国电机工程学报》2019年第24期7357-7365,共9页Proceedings of the CSEE

摘　　要：直线电机目前已经大量应用于工业、军事、民用及其他各种直线运动的场合,在波浪能发电装置中,直线发电机也将得到越来越广泛的应用。提出一种新型圆筒形错相式横向磁通永磁直线发电机的拓扑结构,该结构具有可由硅钢片叠压、设计更自由、整体性更强的优点。同时,其初级铁心单元加工方便,能够充分利用次级永磁体。阐述该电机的工作原理,推导电机的空载主磁通和空载感应电势。通过三维有限元分析计算电机电磁特性,发现了发电机漏磁较大的问题。在此基础上,引入基于元模型的遗传算法对发电机齿形、叠压系数、永磁体间距进行优化设计,实现对发电机关键参数和尺寸的合理选取。最后,给出样机电磁方案,并试制一台150W的样机。通过样机实验,验证了新型发电机拓扑结构的正确性。Linear motors have been widely used in industrial, military, civil and other linear motion applications. It is foreseeable that linear generators will also be widely used in wave energy conversion. This paper presented a novel structure topology of tubular staggered transverse flux permanent magnet linear generator, which employed steel sheets lamination to increase designed freedom and integrity. Also, the primary core unit is easy to process and the secondary permanent magnet can be used efficiently. The structure and working principle of the generator were introduced in this paper. Furthermore, the no-load performance was studied, including no-load main flux and electromotive force. Based on the results, the problem of large magnetic flux leakage was found by analyzing the electromagnetic characteristics of the generator with 3 D FEM. After that, the meta model based genetic algorithm was introduced to optimize the tooth shape, lamination factor and permanent magnet spacing to achieve reasonable selection of key parameters and dimensions. Finally, an 150 W prototype was fabricated and tested. Through the prototype experiment, the correctness of the new structure topology was verified.

关 键 词：圆筒形 错相式 横向磁通 永磁直线发电机 漏磁 基于元模型的遗传算法优化 

分 类 号：TM313[电气工程—电机]