通过构建二维槽号图,并运用统一设计法来对72槽8/10极变极异步电机的交流绕组进行分析研究,得出对8极来说有较高分布系数的2种绕组设计方案。这2个方案的基波相带宽度分别是60°/165°以及120°/120°。采用YY/Δ反向变极结构,经过绕组磁势谐波计算后,对2种绕组进行节距选择以及磁势谐波分析,得出三相平衡度高、谐波小的最优方案。

The AC windings of 72slot 8/10pole motor were analyzed and studied by constructing twodimensional slot number diagram and using the unified design method. Two winding design schemes with higher distribution coefficient for 8 poles were obtained. The fundamental phase bandwidths of the two schemes were 60°/165° and 120°/120°, respectively. The reverse pole changing structure YY/Δ was adopted. After calculating the harmonics of the magnetic potential of the windings, the pitch selection of the two windings and the magnetic potential harmonic analysis were performed, and the optimal scheme with high threephase balance and low harmonics was obtained.

TM 343