摘要
推导了双定子永磁无刷(double-stator permanent magnet brushless,DS-PMBL)电机的功率方程。基于所导出的功率方程分析了该电机在不同磁负载下的功率输出特性,从而得到了使DS-PMBL电机获得最大输出功率的最优裂比(内定子外径与外定子外径之比)的解析表达式。在此基础之上,对内外气隙功率的合理配置进行了定量分析。以一台DS-PMBL样机为例,对其裂比进行了分析与优化,以使其获得最大功率密度。有限元计算结果和样机实验验证了设计方法和理论分析的正确性。
The power equation of double-stator permanent magnet brushless （DS-PMBL） machine had been derived and its output power features had been analyzed under different magnetic loadings.Accordingly,the mathematical expressions of optimal split ratio,namely the ratio of inner-stator outer diameter to outer-stator outer diameter,had been deduced,from which the maximum output power could be obtained.Then the reasonable power distribution between inner and outer airgaps had been discussed quantitatively.At last,the split ratio of a prototype DS-PMBL machine had been optimized in order to achieve maximum power density.Both finite element analysis and experimental results of the prototype machine were given to verify the design method and the theoretical analysis.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第30期62-67,共6页
Proceedings of the CSEE
基金
国家自然科学基金海外与港澳青年学者合作研究基金项目(50729702)
江苏省科技支撑计划(工业部分)项目(BE2008130)~~
关键词
双定子永磁无刷电机
有限元分析
裂比
优化设计
double-stator permanent magnet brushless （DS-PMBL） machine
finite element analysis
split ratio
optimal design
