变极电机绕组设计的一种新方法──对称块图法

A New Method for the Design fo Pole-Changing Motor Windings

提出了应用双极对数槽号相位图设计变极绕组的一种新方法─－对称块图法．阐述了对称块图法的原理，分析了槽号不重复选用的原则，提出了在对称块图法中保证槽号不重复选用的法则，并以反向法变极为例讨论了对称块图法的具体应用，研究了与其对应的对称块图划分的规律及相应的最佳方案．这些规律只与变极绕组的联接方式有关，而与具体的绕组方案无关，因而易于掌握，可以实现变极绕组的直观、灵活设计．

Based on the phase diagram of the slot nurnber with dual pole-pairs,a new method forthe design of pole-changing motor windings,the symmetrical block diagram method, is de-veloped.The principle of the method is described.The rule for not repetitively using thesame slot number is analyzed and measures to guarantee this are given,The application ofthe method is illustrated with a pole-changing winding by current reversal,and the divisionof blocks to give a best design is investigated.