摘要
由于现有的纯物理动态模拟实验室已经难以满足现代电力系统实验教学要求,本文提出基于虚拟仪器的动态模拟实验数字化改造方案。以动态模拟实验中的"同步发电机三相突然短路电流测参数"的数字化改造为例,利用LabVIEW中的Prony分析工具对同步发电机三相短路电流进行分析,得到各个模态的信息,进而根据短路电流公式对发电机的参数进行辨识,并与传统上下包络线法作比较,说明Prony算法的有效性和数字化改造的可行性。
The laboratory of dynamic analog has already not satisfied so many requirements of the modern power system experiment teaching,the digital change of dynamic analog laboratory based on virtual instrumentation is put forward in this paper.Through the method of Prony,the sudden shorted circuit current waveforms are analyzed for three phase synchronous generator.Using the outcome of the analysis,we identify the parameters of the synchronous generator.Compared with primary,we prove the validity of the Prony arithmetic and the feasibility of the digital change.
出处
《电气电子教学学报》
2008年第1期87-90,共4页
Journal of Electrical and Electronic Education
关键词
动态模拟实验
短路电流
PRONY算法
参数辨识
dynamic analog experiment
short-circuit current
Prony method
parameters identification
