交流电机变极绕组设计Ⅰ：理论基础—概念和法则

论述与交流电机变极绕组设计有关的一些基本概念和法则。首先，提出交流电机的元绕组概念，给出其及参当先数求法；其次，论述最小对称槽号组概念，给出其定义，性质及参数求法；最后，论述ｔ参数条件。元绕组概念为交流电机绕组的设计提供了一个基本的分析途径；最小对称槽号组概念是设计交流电机变极绕组非正规对称方案的关键概念；ｔ参数条件为变极绕组非规方案的存在性节判别法则。

Design of Pole-Changing Windingsof A. C. Machine Part 1 Theory basis: Concepts and Laws

This paper investigates the design of A. C. Machine pole-changing winding. It consists of two parts. Here is the first part, which deals with the disgn basis- some relevant concepts and laws. First,the concepts of unit windings, its definitions and parameters are presented. Second,the concepts of the minimum symmatric slot-number group, its definitions, properties and parameters are given. Atlast, t-parameter conditions are narrated. The concepts of unit windings provides a fundamenta analysis approach for the design of A. C. machine polechanging windings. The concepts of the minimum symmatric slot-number group isthe key to the design of A. C. machine unnormal pole-changing windings. t-parameter conditions provide a judging criterion for the existence of A. C. machine uncommon pole-changing windings.