采用d、q轴抛载法测量同步电机参数

Application of the d,q-axes Load Rejection Method to Measuring Parameters of Synchronous Electric Machine

抛栽法测参数是一种新的试验方法。叙述了ｄ、ｑ轴抛载及作图方法。介绍了龙羊峡电站１＃发电机ｄ、ｑ轴抛载试验的内容与方法，给出了试验结果及参数的计算。得出了如下结论；在运行情况下采用ｄ、ｑ轴抛载法求得的参数比较准确，其同步电报与运行电压下的低转差法求得的值相近；该法简便易行，能得到较多的参数。

Load rejection method is a new test method.The d,q-axes load rejection andthe way for plotting are described in this paper.Substance and method of the d,q-axes load rejection test for Longyangxia hydroelectric Power plant are introduced, as well as result of the test and calculation of parameters are given. Atend are drawn following conclusions: parameters, found by using d,q-axes loadrejection method during operation of synchronous electric machine,get more accurate, synchronous reactance found,Prom the method is more close to that from lowslip method under working voltage; the load rejection method is simPle, convenientand feasible,it can obtain more Parameters.