同步电机模型的模型条件和参数偏差分析

Analysis of Model Condition and Solution Bias for the Models of Synchronous Machines

模型条件和参数偏差的研究对系统仿真和参数辨识具有重要意义。本文应用条件数的概念和理论,探讨模型的条件和参数偏差的关系;并以同步电机模型仿真和参数辨识过程为例,对其模型条件和参数产生偏差的原因及影响进行分析,得到一些有实际意义的结论。

A model condition analysis has been shown in the paper for the system simulation and parameter identification of synchronous machines.In conclusion,ill condition is the result of using a higher order model to represent a system which may be described adequately by a lower order model.Consequently,the parameter determined from the high order model become very sensitive to even a small error in data.It is therefore important to investigate the condition of the model in the system modeling and para- meter identification.