The principle of the design method based on ampere-conductor-unit is described, then the method is given and also illustrated by 8/2 polechanging.
首先叙述“安导元”整距变极的原理，然后给出了设计方法，并以8/2变极为例说明之。
2
In the gap magnetic field of polechanging synchronous machine, there would be large harmonics, which have some effects on the operating performance of the machine.
由于变极同步电机气隙磁场中将存在较大的谐波，这些磁场谐波对电机运行性能将产生一些影响。
3
The Pole Star appears to be changing from a star that pulsates.