12/3相双绕组异步发电机定子端部漏感的计算

为计算12/3相双绕组异步发电机多达上百的相间端部漏感，在两线圈间端部漏感的求取和绕组与线圈连接关系确定方面采用了新的分析方法，此方法具有简单通用等传统方法所不具备之优点。通过引入气隙电流和镜像电流，以Biot-Savart定律为基础，把线圈端部各大段分成若干小段，用数值方法计算两线圈间端部电感。仿照图论结合回路电流法分析电路网络的过程，列写了表示线圈支路电流与一相绕组回路电流间的关联矩阵，用规范统一的编程方法计算各相绕组间的端部漏感并给出了几个漏感参数值。最后还对文中方法和其它方法的计算结果进行了比较。

Calculation of Stator Harmonic Leakage Inductances for 12/3-Phase Dual-winding Induction Generator

In order to calculate hundreds of phase end-winding leakage inductances of a 12/3-phase dual stator-winding induction generator,new analysis methods are utilized to acquire end-winding inductances between two coils and determine relationships between windings and coils.The presented method is advantageous in simplicity and versatility over the traditional one.With the air-gap current and the image current adopted and Biot-Savart's law based,a numerical method,which divides the natural end-winding segments of the coil into many micro-segments,is carried out to get end-winding inductances between two coils.By combining graph theory with loop current method for circuit network analysis,the incidence matrix between coil branch currents and one-phase winding loop currents are established,from which the normalized and unified programming approach is performed to phase end-winding leakage inductance calculation.Some calculated leakage inductance parameters are given in the paper,and they are compared with those obtained by the other method.