无刷双馈电机复合转子结构参数的优化设计  

Optimum Design for Composite Rotor Structural Parameters of Brushless Doubly Fed Machines

作　　者：张凤阁[1] 王秀平[1,2] 贾广隆[1] 金石[1] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870 [2]沈阳工程学院电力学院,沈阳110136

出　　处：《电工技术学报》2014年第1期77-84,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51277125;51277124);博士点基金(20122102 110004);教育部创新团队(IRT1072)资助项目

摘　　要：无刷双馈电机在变速恒频风力发电系统和变频节能驱动领域具有广阔的应用前景,其转子耦合能力是影响该种电机出力和功率密度的最重要因素。本文提出一种新型的隔磁磁阻和短路笼条相结合的复合转子结构形式。采用有限元分析法,深入分析了转子极弧系数、导磁层数、导磁层与非导磁层宽度比、有无短路笼条、短路笼条组数及短路笼条层数等结构参数对转子耦合能力的影响,得到了复合转子强耦合能力的结构尺寸。该种新型转子不仅结构简单、加工方便,而且具有强耦合能力和高转矩密度的优点,是无刷双馈电机最具应用潜力的新型转子之一,所研制的样机对转子的耦合能力进行了验证,论文研究工作为该种电机的新型转子设计提供了理论基础。Brushless doubly fed machine of have promising application prospect in VSCF wind power generation and energy-efficient drive field. Coupling capability of rotor is the important factor affecting power density. A novel rotor is presented, that is composite rotor including magnetic barriers and short-circuit cage. Using finite element method, the key parameters affecting the coupling capability are analyzed, such as pole arc factor, magnetic layer numbers, ratio of magnetic and non-magnetic, short-circuit ring, short-circuit set numbers and short-circuit layer numbers. This novel rotor is a promising rotor, which has simple structure, process convenience, stronger coupling capability and higher output torque density. Experiments were carried out to verify. This paper provides theoretical basis for designing novel rotor.

关 键 词：无刷双馈电机 极弧系数 导磁层 短路笼条 复合转子 

分 类 号：TM315[电气工程—电机]