虚拟仪器在发电机励磁系统功率单元故障诊断中的应用  

Application of Virtual Instrument to Fault Diagnosis of Generator Excitation Power Unit

作　　者：王亮[1] 张东生 南海鹏[1] 余向阳[1] 

机构地区：[1]西安理工大学水利水电学院,陕西省西安市710048 [2]西安市水利建设工程总公司,陕西省西安市710068

出　　处：《水电自动化与大坝监测》2006年第3期18-22,共5页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：分析了发电机励磁系统功率单元的工作原理和特点,并进行了故障分类,在此基础上提出一种结合虚拟仪器技术的改进模式识别的故障诊断方法,开发出了基于虚拟仪器的发电机励磁系统功率单元故障诊断系统。实验表明,该系统能准确判断出发生故障的晶闸管,并给出正确的诊断。This paper analyses the principles and characteristics of generator excitation power unit and classifies the faults of the power unit. On the basis of the analysis, this paper puts forward a fault diagnosis method, which is an advanced pattern recognition method, and develops a fault diagnosis system for the generator excitation power unit based on virtual instruments. It is proved by experiment that the fault diagnosis system can precisely judge wrong thyristors, and make accurate diagnosis.

关 键 词：故障诊断 发电机励磁系统 功率单元 虚拟仪器 

分 类 号：TV734.4[水利工程—水利水电工程] TM761[电气工程—电力系统及自动化]