稳态约束条件下同步发电机组直轴电气参数辨识研究

A Research on the Identifiableness of Synchronized Generator D-axis Parameters under Steady-state Conditions

基于稳态约束条件,五阶模型的直轴电气参数辨识,只需要辨识Xd、Xf、Xd"、Td0"四个量就可以计算求得Xd、 Xd’、Xd”、Td0’、Td0”、K六个量,算例给出了很好的验证,既提高了直轴电气参数辨识的精度,又增强了辨识程序的实用范围,具有工程实用价值．

For electric parameters in d-axis, in a steady-state condition, all parameters in d-axis can be made out with the identification of four parameters Xd, Xd, Xd＂, Td0＂ only. The simulations proved the efficiency of this method, which can not only improve the accuracy of identification, but also enlarge the applicable scope of the identification program, hence its practicability.