一种用于太阳能热发电系统的磁场调制直线发电机  

PERMANENT MAGNET LINEAR GENERATOR WITH FIELD MODULATION FOR SOLAR THERMAL POWER GENERATION SYSTEM

作　　者：杨巧玲[1] 包广清[1] 刘美钧 张克春 宋柏良 郭生辉 Yang Qiaoling;Bao Guangqing;Liu Meijun;Zhang Kechun;Song Boliang;Guo Shenghui(College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Sichuan Aerospace Fenghuo Servo Control Technology Corporation,Chengdu 611130,China)

机构地区：[1]兰州理工大学电气工程与信息工程学院,兰州730050 [2]四川航天烽火伺服控制技术有限公司,成都611130

出　　处：《太阳能学报》2021年第12期93-98,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51767018,51967012)。

摘　　要：永磁直线发电机有效避免了传统太阳能热发电系统的中间转换机构,大大简化了装置结构,但存在效率及功率密度低的缺陷。为此,提出一种用于该系统的磁场调制式永磁直线发电机(M-FMPMLG),该发电机具有双动子结构,经过磁场调制后其次级运行速度得以提升,功率密度和材料利用率提高。在综合考虑发电系统构成确定发电机基本结构及主要参数基础上,采用有限元法分析其电磁特性,并制作样机。电磁分析和样机测试结果充分验证了设计的正确性。The permanent magnet linear generator effectively avoids intermediate conversion device of traditional solar thermal power generation system and greatly simplifies the structure of the equipment,but it has the defects of low efficiency and low power density.Therefore,a magnetic-field modulated permanent magnet linear generator(M-FMPMLG)is proposed for the system. M-FMPMLG have two movers. Its secondary running speed,power density and material utilization rate can be improved after magnetic field modulation.On the basis of determining the structure and main parameters of M-FMPMLG by considering comprehensively the composition of the generation system,its electromagnetic characteristics are analyzed by using the finite element method,and a prototype is made. The results of electromagnetic analysis and prototype test fully verify the correctness of the design.

关 键 词：太阳能发电 发电机 电磁分析 磁场调制 传动比 

分 类 号：TM301[电气工程—电机]