CAJ | 학술논문

针对应用在电主轴中的高速永磁无刷直流电机存在的转矩脉动、定子铁心损耗、转子涡流损耗、永磁体抗电枢去磁能力等关键问题，从转子和定子结构两方面对电机进行优化设计.通过有限元仿真对比分析永磁体不同充磁方式及定子槽数对电机各方面性能的影响，提出采用平行充磁的面贴式转子结构和槽数较少的分数槽定子结构.设计出60000 r/min、3．5 kW的21槽无刷直流电机并进行稳态仿真和样机试验.
침대응용재전주축중적고속영자무쇄직류전궤존재적전구맥동、정자철심손모、전자와류손모、영자체항전추거자능력등관건문제，종전자화정자결구량방면대전궤진행우화설계.통과유한원방진대비분석영자체불동충자방식급정자조수대전궤각방면성능적영향，제출채용평행충자적면첩식전자결구화조수교소적분수조정자결구.설계출60000 r/min、3．5 kW적21조무쇄직류전궤병진행은태방진화양궤시험.
Aiming at the key questions in high-speed brushless DC motor (BLDCM),such as torque ripple, stator core loss,parasitic eddy current loss and the ability to resist armature demagnetization and so on, this paper optimized the motor from the structure of rotor and stator.Through finite element analysis (FEA)of different models based on various magnetization directions and different stator slot numbers,the parallel magnetized permanent magnets and frictional-slot windings were adopted.The design and steady state finite element simulation for a 60000r/min,3.5kW BLDC motor were carried out,and the data form prototype verified this design progress.