深槽式凸极转子无刷双馈电机的电磁设计  

Design of Electromagnetic Characteristics for Brushless Doubly-Fed Machine of Salient Pole Rotor with Deep Slots

作　　者：薛冰[1] 

机构地区：[1]国家知识产权局专利局专利审查协作江苏中心,苏州215163

出　　处：《微特电机》2017年第11期15-18,22,共5页Small & Special Electrical Machines

摘　　要：对传统的普通凸极转子进行优化设计,研究了凸极长度和宽度对转子耦合能力的影响,确定最优尺寸方案。为了提高电机性能,对优化后的普通凸极转子进行结构改进,增加深槽,得到了深槽式凸极转子无刷双馈电机,并对新增深槽的宽度和深度对转子耦合能力的影响进行了分析,确定深槽最优尺寸,短路导电条被嵌入到深槽中,谐波磁通流通轨迹得到更好的限定,转子的磁耦合作用得到进一步提升。利用Ansoft有限元分析软件计算得到了磁力线分布和气隙的各次谐波磁通百分比,研究比较了优化前与优化后的转子磁耦合作用。The structure of the ordinary salient pole rotor was optimized and research the influence on coupling capabil- ity of the length and width of salient pole to determine the optimal size of the program. In order to improve the performance of motor, the structure of optimized ordinary salient pole rotor was changed through adding deep slots, a BDFM of salient pole rotor with deep slots was achieved and the influence on coupling capability of the width and depth of deep slots was an- alyzed to determine the optimal size of the deep slots. Short-circuit conducting bars were laid in the deep slots to restrict the path of harmonic magnetic field to improve the capability of magnetic field coupling. The distribution of the magnetic field lines was gained and the harmonic content of the air-gap magnetic flux through Ansoft to compare the capability of magnetic field coupling of before and after optimization of rotor by quantitative analysis.

关 键 词：无刷双馈电机 深槽式凸极转子 耦合能力 ANSOFT 

分 类 号：TM34[电气工程—电机]