两种坐标系下发电机低励限制整定与失磁保护配合

Matching of Generator Low Excitation Limit Setting and Loss of Excitation Protection Between Two Coordinates

在发电机的整定计算中,失磁保护所用到的阻抗圆是在R-X平面,而低励限制的整定一般是在P-Q平面进行的。本文提出了发电机低励限制整定和失磁保护配合的两种坐标转换方法,给现场运行提供了借鉴。

In the setting calculation of generator,the impedance round used in the loss of excitation protection is in the R-X plane, while the setting of low excitation limit is in the P-Q plane.In this paper, the two method of coordinate conversion on the matching of generator tow excitation limit setting and loss of excitation protection is proposed, and the reference on local running is proposed.