slot pitch

These analytical results show that the change of the slot width and pole pitch affect the performance of the motors greatly. It also demonstrates that skewing poles could efficiently decrease the torque ripple of PM motors.

分析结果表明，定子槽宽和极宽的变化会对电机性能产生较大影响，永磁电机采用斜极结构，可有效减小电磁转矩波动。

Two formulas of compound shaper cutter are ob-tained. They are used to calculate the pitch pressure angle of chamfer involute and radius of circle on which chamfer involute starting point lies, and to check the tooth root slot width.

得到了复合插齿刀倒角渐开线分度圆压力角，倒角渐开线起始点所在圆半径的设计公式及插齿刀齿根槽宽的验算公式；

The structure of similar pole and slot number can increase the winding pitch coefficient, and reduce cogging torque ripple effectively with the reasonable combination of pole number and slot number.

极槽数相近结构不仅可以提高绕组短距系数，而且极数和槽数的合理配比能够有效地削弱齿槽转矩。

This paper presents the calculating method for stator and rotor harmonics unit leakage permeance, slot end and slot bottom pitch leakage reactance coefficient, starting torque, breakdown torque, and starting current in designing of motors with further pole ratio.

阐述远极比电机设计时定、转子谐波单位漏磁导、槽口、槽底节距漏抗系数、起动转矩、最大转矩、起动电流的计算方法。