摘要
为消减集成电机推进器用无刷直流电机存在的齿槽转矩以保证整个推进器的性能,综合考虑了推进器的性能要求、尺寸要求、加工工艺等实际情况,以消减齿槽转矩并尽可能减小其对电机输出转矩的影响为目标,提出了一种槽口倾斜综合优化方法。采用Box-Behnken设计了实验,并利用响应面法处理实验数据,得到了齿槽槽口倾斜角度、极弧系数和槽口宽度3个因素间关系的数学模型,从而计算出了使齿槽转矩最小的槽口倾斜角度、极弧系数和槽口宽度最优解组合。最后,用电磁场分析软件infolytica/MagNet求解了各个实验点的参数值,并验证了最优组合预测值。计算结果表明,对于所设计的功率为2kW的集成电机推进器用无刷直流电机,优化后的槽口倾斜角度为5°,极弧系数为0.65,槽口宽度为3mm,采用此优化参数可使电机齿槽转矩减小28.69%。
The cogging torque of brushless DC motor for integrated motor propulsor can seriously affect the performance of integrated motor propulsor.To deal with this problem,this paper considers the requirements of the propulsor＇s size,processing technology and performance,and presents a slot opening skew comprehensive optimization method to reduce the cogging torque and minimize its influence on the output torque.Using Box-Behnken to design experiments and response surface methodology（RSM）to process experimental data,a mathematical model about the relationship among the angle of slot opening skew,pole-arc coefficient and slot opening width is obtained. Moreover,the optimal combination of the slot opening skew angle,pole-arc coefficient and slot opening width is determined.The electromagnetic field analysis software infolytica/MagNet is used to solve the values at various experimental sites and verify the optimal combination forecast.The results show that for the 2kW motor designed for this study,when the angle of slot opening skew is 5°,the pole-arc coefficient is 0.65 and the slot opening width is3 mm,the cogging torque is reduced by about 28.69%.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2016年第5期151-156,共6页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金资助项目(51179159)
关键词
集成电机推进器
齿槽转矩
槽口倾斜综合优化
响应面法
integrated motor propulsor
cogging torque
slot opening skew comprehensive optimization
response surface methodology
