Then, point out principle of six-phase double star winding shifted by 30 °, structure of winding and the characteristics of harmonic analysis. A 200 kW six-phase double star winding shifted by 30 ° synchronous motor is designed. 然后介绍六相双Y移30°绕组的构成原理,指出了这种绕组结构的特点及谐波分析。